Researchers have argued that bilingual speakers experience less emotion in their second language. However, some studies have failed to find differences in emotionality between first and second lang...

How people distinguish well-justified from poorly justified arguments is not well known. To study the involvement of intuitive and analytic cognitive processes, we contrasted participants’ personal beliefs with argument strength that was determined in relation to established criteria of sound argumentation. In line with previous findings indicating that people have a myside bias, participants (N = 249) made more errors on conflict than on no-conflict trials. On conflict trials, errors and correct responses were practically equal in terms of response times (...) and mouse-tracking indices of hesitation. Similarly to recent findings on formal reasoning, these findings indicate that correct reasoning about informal arguments may not necessitate corrective analytic processing. We compared findings across four argument schemes but found few differences. The findings are discussed in light of intuitive logic theories and the notion that evaluating informal arguments could be based on implicit knowledge of argument criteria. (shrink)

Recent evidence increasingly suggests that comprehenders are capable of generating probabilistic predictions about forthcoming linguistic inputs during language comprehension. However, it remains debated whether language comprehenders predict low‐level word forms and whether they always make predictions. In this study, we investigated semantic and phonological prediction in high‐ and low‐constraining sentence contexts, utilizing the mouse‐tracking paradigm to trace mouse movement trajectories. Mandarin Chinese speakers listened to high‐ and low‐constraining sentences which resulted in high and low predictability for the (...) critical target words. While listening, participants viewed a visual display featuring two objects: one corresponding to the critical target word (the target object) and the other being either semantically related, phonologically related, or unrelated to the target word. Participants were instructed to click on the target object. The analysis of mouse movement trajectories revealed two key findings: (1) In both high‐ and low‐constraining contexts, there was a spatial attraction of the cursor toward semantic competitors, notably occurring before the target word was heard; (2) there are indications that phonological pretarget attraction effects were observed primarily in high‐constraining contexts. These findings suggest that the constraints of sentences have the potential to modulate the representational contents of linguistic prediction during language comprehension. Methodologically, the mouse‐tracking paradigm presents a promising tool for further exploration of linguistic prediction. (shrink)

The processes and mechanisms underlying inhibitory control have been explored for decades. The current study investigated the inhibitory control processes in response to complex conflict types within trials. A novel task combined a spatial Simon manipulation with a color‐shape task switching paradigm, using a “mouse tracking” technique which captured dynamic responses. Simon compatibility and task‐rule congruency effects clearly emerged in performance and exerted an additive influence on movement trajectories. A time‐course analysis showed a very early and fast‐acting Simon (...) effect, but a task congruency effect which emerged later. No interaction was observed between Simon compatibility and task‐rule congruency. The results suggest that cognitive control can be flexibly and independently evoked by different conflict types within a short time period, but that very different mental processes underlie Simon and congruency effects. Our findings are in agreement with the view that different conflict types are managed by distinct cognitive control mechanisms. (shrink)

Researchers have recently begun to question the specificity and reliability of conflict adaptation effects, also known as sequential congruency effects, a highly cited effect in cognitive psychology. Some have even used the lack of reliability across tasks to argue against models of cognitive control that have dominated the field for decades. The present study tested the possibility that domain-general processes across tasks might appear on more sensitive mouse-tracking metrics rather than overall reaction times. The relationship between SCE effects (...) on the Stroop and Flanker tasks were examined for the first time using a mouse-tracking paradigm. Three main findings emerged: Robust SCEs were observed for both the Stroop and Flanker tasks at the group level, Within-task split-half reliabilities for the SCE across dependent variables were weak at best and non-existent in many cases, and SCEs for the Flanker and Stroop tasks did not correlate with each other for overall reaction times, but did show significant correlations between tasks on more dynamic measures that captured processes before response execution. These findings contribute to the literature by highlighting how mouse-tracking may be a fruitful avenue by which future studies can examine the specificity and reliability of conflict adaptation and tease apart different theoretical models producing the effects. (shrink)

The role played by motor representations in tracking others’ belief-based actions remains unclear. In experiment 1, the dynamics of adults’ anticipatory mediolateral motor activity (leftwards–rightwards leaning on a balance board) as well as hand trajectories were measured as they attempted to help an agent who had a true or false belief about an object’s location. Participants’ leaning was influenced by the agent’s belief about the target’s location when the agent was free to act but not when she was motorically (...) constrained. However, the hand trajectories participants produced to provide a response were not modulated by the other person’s beliefs. Therefore, we designed a simplified second experiment in which participants were instructed to click as fast as possible on the location of a target object. In experiment 2, mouse-movements deviated from an ideal direct path to the object location, with trajectories that were influenced by the location in which the agent falsely believed the object to be located. These experiments highlight that information about an agent’s false-belief can be mapped onto the motor system of a passive observer, and that there are situations in which the motor system plays an important role in accurate belief-tracking. (shrink)

Mouse tracking, a new action‐based measure of behavior, has advanced theories of decision making with the notion that cognitive and social decision making is fundamentally dynamic. Implicit in this theory is that people's decision strategies, such as discounting delayed rewards, are stable over task design and that mouse trajectory features correspond to specific segments of decision making. By applying the hierarchical drift diffusion model and the Bayesian delay discounting model, we tested these assumptions. Specifically, we investigated the (...) extent to which the “mouse‐tracking” design of decision‐making tasks (delay discounting task, DDT and stop‐signal task, SST) deviate from the standard “keypress” design of decision making tasks. We found remarkable agreement in delay discounting rates (intertemporal impatience) obtained in the keypress and mouse‐tracking versions of DDT (ρ = 0.90) even though these tasks were given about 1 week apart. Rates of evidence accumulation converged well in the two versions (DDT, ρ =.86; SST, ρ =.55). Omission/commission error in SST showed high agreement (ρ =.42, ρ =.53). Mouse‐motion features such as maximum velocity and AUC (area under the curve) correlated well with nondecision time (ρ = −.42) and boundary separation (ρ =.44)—the amount of information needed to accumulate prior to making a response. These results indicate that the response time (RT) and motion‐based decision tasks converge well at a fundamental level, and that mouse‐tracking features such as AUC and maximum velocity do indicate the degree of decision conflict and impulsivity. (shrink)

Although several theories of online syntactic processing assume the parallel activation of multiple syntactic representations, evidence supporting simultaneous activation has been inconclusive. Here, the continuous and non‐ballistic properties of computer mouse movements are exploited, by recording their streaming x, y coordinates to procure evidence regarding parallel versus serial processing. Participants heard structurally ambiguous sentences while viewing scenes with properties either supporting or not supporting the difficult modifier interpretation. The curvatures of the elicited trajectories revealed both an effect of visual (...) context and graded competition between simultaneously active syntactic representations. The results are discussed in the context of 3 major groups of theories within the domain of sentence processing. (shrink)

Three online mouse cursor-tracking experiments investigated predictive sentence processing at speed. Participants viewed visual arrays with objects like a bike and kite while hearing predictive sentences like, “What the man will ride, which is shown on this page, is the bike,” or non-predictive sentences like, “What the man will spot, which is shown on this page, is the bike.” Based on the selectional restrictions of “ride” (i.e., vs. “spot”), participants made mouse cursor movements to the bike before (...) hearing the noun “bike.” Compellingly, this effect was observed at speech rates of ∼3 (Experiment 1), ∼6 (Experiment 2), and ∼9 (Experiment 3) syllables/s. While prior research suggests striking limits on prediction, these results highlight temporal dynamics that may impact comprehenders’ ability to preactivate information when hearing impressively rapid speech. Implications for theories of sentence processing are discussed. (shrink)

The ability to sequence thoughts and actions is impaired in Parkinson’s disease. In PD, a distinct error pattern has been found in the offline performance of sequential working memory. This study examined how PD’s performance of sequential working memory unfolds over time using mouse tracking techniques. Non-demented patients with mild PD and healthy controls completed a computerized digit ordering task with a computer mouse. We measured response dynamics in terms of the initiation time, ordering time, movement time, (...) and area under the movement trajectory curve. This approach allowed us to distinguish between the cognitive processes related to sequence processing before the actual movement and the execution processes of the actual movement. PD patients showed longer initiation times, longer movement times, and more constrained movement trajectories than healthy controls. The initiation time and ordering time negatively correlated with the daily exposure to levodopa and D2/3 receptor agonists, respectively. The movement time positively correlated with the severity of motor symptoms. We demonstrated an altered temporal profile of sequential working memory in PD. Stimulating D1 and D2/3 receptors might speed up the maintenance and manipulation of sequences, respectively. (shrink)

ABSTRACTWe tested the response dynamics of the evaluative priming effect using a mouse tracking procedure that records hand movements during the execution of categorisation tasks. In Experiment 1, when participants performed the evaluative categorisation task but not the non-evaluative semantic categorisation task, their mouse trajectories for evaluatively incongruent trials curved more toward the opposite response than those for evaluatively congruent trials, indicating the emergence of evaluative priming effects based on response competition. In Experiment 2, implementing a task-switching (...) procedure in which evaluative and non-evaluative categorisation tasks were intermixed, we obtained reliable evaluative priming effects in the non-evaluative semantic categorisation task as well as in the evaluative categorisation task when participants assigned attention to the evaluative stimulus dime... (shrink)

Although mouse‐tracking has been taken as a real‐time window on different aspects of human decision‐making processes, whether purely semantic information affects response conflict at the level of motor output as measured through mouse movements is still unknown. Here, across two experiments, we investigated the effects of semantic knowledge by predicting participants’ performance in a standard keyboard task and in a mouse‐tracking task through distributional semantics, a usage‐based modeling approach to meaning. In Experiment 1, participants were (...) shown word pairs and were required to perform a two‐alternative forced choice task selecting either the more abstract or the more concrete word, using standard keyboard presses. In Experiment 2, participants performed the same task, yet this time response selection was achieved by moving the computer mouse. Results showed that the involvement of semantic components in the task at hand is observable using both standard reaction times (Experiment 1) as well as using indexes extracted from mouse trajectories (Experiment 2). In particular, mouse trajectories reflected the response conflict and its temporal evolution, with a larger deviation for increasing word semantic relatedness. These findings support the validity of mouse‐tracking as a method to detect deep and implicit decision‐making features. Additionally, by demonstrating that a usage‐based model of meaning can account for the different degrees of cognitive conflict associated with task achievement, these findings testify the impact of the human semantic memory on decision‐making processes. (shrink)

Intonation plays an integral role in comprehending spoken language. Listeners can rapidly integrate intonational information to predictively map a given pitch accent onto the speaker's likely referential intentions. We use mouse tracking to investigate two questions: (a) how listeners draw predictive inferences based on information from intonation? and (b) how listeners adapt their online interpretation of intonational cues when these are reliable or unreliable? We formulate a novel Bayesian model of rational predictive cue integration and explore predictions derived (...) under a concrete linking hypothesis relating a quantitative notion of evidential strength of a cue to the moment in time, relative to the unfolding speech signal, at which mouse trajectories turn towards the eventually selected option. In order to capture rational belief updates after concrete observations of a speaker's behavior, we formulate and explore an extension of this model that includes the listener's hierarchical beliefs about the speaker's likely production behavior. Our results are compatible with the assumption that listeners rapidly and rationally integrate all available intonational information, that they expect reliable intonational information initially, and that they adapt these initial expectations gradually during exposition to unreliable input. All materials, data, and scripts can be retrieved here: https://osf.io/dnbuk/. (shrink)

The study of eye movements is a common way to non-invasively understand and analyze human behavior. However, eye-tracking techniques are very hard to scale, and require expensive equipment and extensive expertise. In the context of web browsing, these issues could be overcome by studying the link between the eye and the computer mouse. Here, we propose new analysis methods, and a more advanced characterization of this link. To this end, we recorded the eye, mouse, and scroll movements (...) of 151 participants exploring 18 dynamic web pages while performing free viewing and visual search tasks for 20 s. The data revealed significant differences of eye, mouse, and scroll parameters over time which stabilize at the end of exploration. This suggests the existence of a task-independent relationship between eye, mouse, and scroll parameters, which are characterized by two distinct patterns: one common pattern for movement parameters and a second for dwelling/fixation parameters. Within these patterns, mouse and eye movements remained consistent with each other, while the scrolling behaved the opposite way. (shrink)

This study explores the extent to which comprehending negated antonyms in Persian involves the mitigation effect, whereby a negated word means less than its antonym. In two mouse-tracking experiments, participants rated sentences containing negated/non-negated scalar (e.g., tall-short) and complementary (e.g., dead-alive) antonymous adjectives on a continuous scale. Their reaction times and mouse movements were recorded by MouseTracker. The analysis of reaction times shows that negated adjectives are processed slower than their affirmative counterparts. Moreover, the analysis of (...) class='Hi'>mouse trajectories shows that complementary adjectives are rated further apart, closer to the endpoints of the scale than scalar adjectives. We also found that both complementary and scalar adjectives are mitigated under negation, but the mitigation effect is greater in scalar, rather than complementary, adjectives. The results speak in favor of a particular kind of mitigation effect, so-called negative strengthening, which causes negated antonyms to receive a strong pragmatic interpretation towards the opposite member of the pair. (shrink)

Parallel language activation in bilinguals leads to competition between languages. Experience managing this interference may aid novel language learning by improving the ability to suppress competition from known languages. To investigate the effect of bilingualism on the ability to control native-language interference, monolinguals and bilinguals were taught an artificial language designed to elicit between-language competition. Partial activation of interlingual competitors was assessed with eye-tracking and mouse-tracking during a word recognition task in the novel language. Eye-tracking results (...) showed that monolinguals looked at competitors more than bilinguals, and for a longer duration of time. Mouse-tracking results showed that monolinguals’ mouse movements were attracted to native-language competitors, whereas bilinguals overcame competitor interference by increasing the activation of target items. Results suggest that bilinguals manage cross-linguistic interference more effectively than monolinguals. We conclude that language interference can affect lexical retrieval, but bilingualism may reduce this interference by facilitating access to a newly learned language. (shrink)

Considerable evidence supports the sequential two-system model of moral judgement, as proposed by Greene and others. We tested whether judgement speed and/or personal/impersonal moral dilemmas can predict the kind of moral judgements subjects make for each dilemma, and whether personal dilemmas create difficulty in moral judgements. Our results showed that neither personal/impersonal conditions nor spontaneous/thoughtful-reflection conditions were reliable predictors of utilitarian or deontological moral judgements. Yet, we found support for an alternative view, in which, when the two types of responses (...) are in conflict; the resolution of this conflict depends on both the subject and the dilemma. While thinking about this conflict, subjects sometimes change their minds in both directions, as suggested by the data from a mouse-tracking task. (shrink)

Nudges have gained popularity as a behavioral change tool that aims to facilitate the selection of the sensible choice option by altering the way choice options are presented. Although nudges are designed to facilitate these choices without interfering with people’s prior preferences, both the relation between individuals’ prior preferences and nudge effectiveness, as well as the notion that nudges ‘facilitate’ decision-making have received little empirical scrutiny. Two studies examine the hypothesis that a social proof nudge is particularly effective when people (...) have no clear prior preference, either because people are indifferent (in a colour-categorization task; Study 1, N = 255) or because people experience a choice conflict (making shopping decisions about meat products; Study 2, N = 97). Both studies employed a social proof nudge to steer participants’ choices. The potential facilitating effect of the nudge was tested using a mouse-tracker paradigm that implicitly assessed experienced uncertainty during decision-making. Results showed that the nudge was effective in steering participants’ decisions; the facilitation effect (i.e., reduced uncertainty regarding the decision) was only observed for conflicting preferences, but not under indifference. A better understanding of when and how nudges can influence individuals’ behavior may help in deciding whether nudges are an appropriate policy tool for changing particular undesirable behavior. (shrink)

Emotional states are believed to broaden or to narrow the focus of attention. However, numerous inconsistent findings call for renewed efforts to understand the conditions under which such effects occur. We conducted a pair of high-powered web experiments. Emotional states were manipulated across valence categories and appraisal dimensions using autobiographical recall (Experiment 1) and emotional images (Experiment 2). Breadth of attention was assessed using the Navon task coupled with induction sensitivity and mouse tracking analyses. We did not find (...) robust evidence for emotional effects on breadth of attention. Negative images led surprisingly to slightly broader attention in Experiment 2, but this may reflect the slow release of cognitive resources from preceding negative stimuli amplifying the global precedence effect. Breadth of attention also had very small positive relationships with goal-congruence appraisal in the first and control appraisal in the second experiment. We also found no evidence for moderation by mood or personality. Taken together, our findings add to the growing list of failures to observe emotional modulation of breadth of attention and call for continued efforts to chart the boundary conditions of these effects. (shrink)

Everyday social interactions hinge on our ability to resolve uncertainty in nonverbal cues. For example, although some facial expressions (e.g. happy, angry) convey a clear affective meaning, others (e.g. surprise) are ambiguous, in that their meaning is determined by the context. Here, we used mouse-tracking to examine the underlying process of resolving uncertainty. Previous work has suggested an initial negativity, in part via faster response times for negative than positive ratings of surprise. We examined valence categorizations of filtered (...) images in order to compare faster (low spatial frequencies; LSF) versus more deliberate processing (high spatial frequencies; HSF). When participants categorised faces as “positive”, they first exhibited a partial attraction toward the competing (“negative”) response option, and this effect was exacerbated for HSF than LSF faces. Thus, the effect of response conflict due to an initial negativity bias was exaggerated for HSF faces, likely because these images allow for greater deliberation than the LSFs. These results are consistent with the notion that more positive categorizations are characterised by an initial attraction to a default, negative response. (shrink)

Children learning to read in two different orthographic systems are exposed to cross-linguistic interferences. We explored the effects of school and grade on phonological activation during a visual word recognition task. Elementary school children from Spain completed a lexical decision task in English. The task included real words and pseudohomophones following Spanish or English phonological rules. Using the mouse-tracking paradigm, we analyzed errors, reaction times, and computer mouse movements. Children in the bilingual school performed better than children (...) in the monolingual school. Children in higher grades performed better than children in lower grades. The interference effect of Spanish phonology was weak and became weaker in higher grades. Spanish children differentiate between first and second language grapheme-to-phoneme correspondences since early on in the educational process. In 6th grade, children from the bilingual school responded better to words and Spanish pseudohomophones, while children from the monolingual school were less distracted by the English pseudohomophones. Children in the bilingual school had stronger inhibition of Spanish phonology and stronger activation of English phonology. Instructional method plays an important role on the processing strategies Spanish children rely on when reading in English. School and grade influence the link between orthographic and phonological representations. (shrink)

Mind &Language, Volume 34, Issue 5, Page 667-680, November 2019.

We explored the influence of negation on cognitive dynamics, measured using mouse‐movement trajectories, to test the classic notion that negation acts as an operator on linguistic processing. In three experiments, participants verified the truth or falsity of simple statements, and we tracked the computer‐mouse trajectories of their responses. Sentences expressing these facts sometimes contained a negation. Such negated statements could be true (e.g., “elephants are not small”) or false (e.g., “elephants are not large”). In the first experiment, as (...) predicted by the classic notion of negation, we found that negation caused more discreteness in the mouse trajectory of a response. The second experiment induced a simple context for these statements, yet negation still increased discreteness in trajectories. A third experiment enhanced the pragmatic context of sentences, and the discreteness was substantially diminished, with one primary measure no longer significantly showing increased discreteness at all. Traditional linguistic theories predict rapid shifts in cognitive dynamics occur due to the nature of negation: It is an operator that reverses the truth or falsity of an interpretation. We argue that these results support both propositional and contextual accounts of negation present in the literature, suggesting that contextual factors are crucial for determining the kind of cognitive dynamics displayed. We conclude by drawing broader lessons about theories of cognition from the case of negation. (shrink)

An investigation into what happens in creative practice when the materials of art and research behave and perform in ways beyond the creators' intentions. In Alien Agency, Chris Salter tells three stories of art in the making. Salter examines three works in which the materials of art—the “stuff of the world”—behave and perform in ways beyond the creator's intent, becoming unknown, surprising, alien. Studying these works—all three deeply embroiled in and enabled by science and technology—allows him to focus on practice (...) through the experiential and affective elements of creation. Drawing on extensive ethnographic observation and on his own experience as an artist, Salter investigates how researcher-creators organize the conditions for these experimental, performative assemblages—assemblages that sidestep dichotomies between subjects and objects, human and nonhuman, mind and body, knowing and experiencing. Salter reports on the sound artists Bruce Odland and Sam Auinger (O+A) and their efforts to capture and then project unnoticed urban sounds; tracks the multi-year project TEMA (Tissue Engineered Muscle Actuators) at the art research lab SymbioticA and its construction of a hybrid “semi-living” machine from specially grown mouse muscle cells; and describes a research-creation project (which he himself initiated) that uses light, vibration, sound, smell, and other sensory stimuli to enable audiences to experience other cultures' “ways of sensing.” Combining theory, diary, history, and ethnography, Salter also explores a broader question: How do new things emerge into the world and what do they do? (shrink)

Distributive justice decision making tends to require a trade off between different valued outcomes. The present study tracked computer mouse cursor movements in a forced-choice paradigm to examine for tension between different parameters of distributive justice during the decision-making process. Participants chose between set meal distributions, to third parties, that maximised either equality (the evenness of the distribution) or efficiency (the total number of meals distributed). Across different formulations of these dilemmas, responding was consistent with the notion that individuals (...) tend to base decisions in part on the magnitude of these parameters. In addition, dilemmas associated with inconsistent responding across the sample tended to elicit the greatest spatial deviation of the cursor, potentially reflecting dilemma difficulty. One interpretation of these results is that individuals value equality and efficiency in such a way that moral dilemmas are resolved by comparing the perceived value of these qualitatively different parameters, consistent with a value pluralistic framework of decision making. A post-hoc analysis indicated that individuals also incorporated sufficiency concerns during distributive justice decision making. The results are discussed in relation to political philosophy. (shrink)

Alzheimer's disease is characterized by plaques of amyloid-beta peptide, cleaved from amyloid-beta protein precursor. Our hypothesis is that lifespan profiles of AD-associated mRNA and protein levels in monkeys would differ from mice and that differential lifespan expression profiles would be useful to understand human AD pathogenesis. We compared profiles of AbetaPP mRNA, AbetaPP protein, and Abeta levels in rodents and primates. We also tracked a transcriptional regulator of the AbetaPP gene, specificity protein 1, and the beta amyloid precursor cleaving enzyme. (...) In mice, AbetaPP and SP1 mRNA and their protein products were elevated late in life; Abeta levels declined in old age. In monkeys, SP1, AbetaPP, and BACE1 mRNA declined in old age, while protein products and Abeta levels rose. Proteolytic processing in both species did not match production of Abeta. In primates, AbetaPP and SP1 mRNA levels coordinate, but an inverse relationship exists with corresponding protein products as well as Abeta levels. Comparison of human DNA and mRNA sequences to monkey and mouse counterparts revealed structural features that may explain differences in transcriptional and translational processing. These findings are important for selecting appropriate models for AD and other age-related diseases. (shrink)

If our choices make us who we are, then what does that mean when these choices are made in the human-machine interface? Developing a clear understanding of how human decision making is influenced by automated systems in the environment is critical because, as human-machine interfaces and assistive robotics become even more ubiquitous in everyday life, many daily decisions will be an emergent result of the interactions between the human and the machine – not stemming solely from the human. For example, (...) choices can be influenced by the relative locations and motor costs of the response options, as well as by the timing of the response prompts. In drift diffusion model simulations of response-prompt timing manipulations, we find that it is only relatively equibiased choices that will be successfully influenced by this kind of perturbation. However, with drift diffusion model simulations of motor cost manipulations, we find that even relatively biased choices can still show some influence of the perturbation. We report the results of a two-alternative forced-choice experiment with a computer mouse modified to have a subtle velocity bias in a pre-determined direction for each trial, inducing an increased motor cost to move the cursor away from the pre-designated target direction. With queries that have each been normed in advance to be equibiased in people’s preferences, the participant will often begin their mouse movement before their cognitive choice has been finalized, and the directional bias in the mouse velocity exerts a small but significant influence on their final choice. With queries that are not equibiased, a similar influence is observed. By exploring the synergies that are developed between humans and machines and tracking their temporal dynamics, this work aims to provide insight into our evolving decisions. (shrink)

The greatest intensity of “live” life is captured from as close as possible in order to be borne as far as possible away. Jacques Derrida. Echographies of Television . Rainer Ganahl has made a study of studying. As part of his extensive autobiographical art practice, he documents and presents many of the ambitious educational activities he undertakes. For example, he has been videotaping hundreds of hours of solitary study that show him struggling to learn Chinese, Arabic and a host of (...) other languages. The stacked boxes of tapes are then presented like minimalist monoliths, dense archives of effort. About fifteen years ago, Ganahl began photographing the lectures that he attends. At the time, he hadn’t seen anyone else doing it, so besides his spare selection of images of the speaker and the audience, much of the time the lectures would just pass into memory, undocumented, or recorded in writing alone. Since then, he has felt the transition to digital cause a significant shift in his process. At the same time, he has seen the habit become ubiquitous as others photograph, record, and videotape the lectures all around him. In keeping with the theme of this inaugural issue of continent. , can we propose each small grouping of photographs that result an isthmus stretching between two disparate bodies of mind? The first being the body of the lecture as spelled out in the title of each work – the experience of the event in all its constituent parts. The second is the body of the recipient, the listener, in this case an artist, who plays a minimal role just beyond the prescripted behavior of sitting and listening. He uses a gesture of documentation to draw a line between himself and the event, creating an artwork. Františka + Tim Gilman: As we mentioned before, the theme of the magazine for this issue is "isthmus." It seems like a very good way into your work, and it leads us to ask what connection you see between your photographs of the lecture and the lecture itself? Rainer Ganahl: The relationship is of course a concrete, pictorial one, or if you want a mimetic one but also an abstract one because the photographs carry the title of the lecture, the names of the lecturers, the site, the institution and the time of the lecture. Photos are fixed moments of time and can reproduce images displayed and reproduce visuals presented at a moment but they don’t come with time based recordings that video or sound takes are offering. What remains of a lecture is usually just the memory, some notes and all the announcements of it. In my case I end up with a visual product I declare as my artwork. It might not differ from any snapshot taken by any other student or member of the audience but I do this in a semi-systematic way with certain rules and procedures I have set up. While I am at a lecture I am mainly focusing on the lecture itself. Last night I went to one of Slavoj Žižek which demanded quite some concentration. I even was asking him a question at the end. I took photos as well but still didn’t lose track of the lecture. I didn’t walk around, I was not preoccupied by where I was sitting and what light I was having like some of the other photographing and filming people in the room who came and left, moved around and tried to capture him from this and that angle, from close and far. I just sat there and concentrated on the lecture and yet managed to take about 30 or so images of him, the public around me and of the film clips he presented. Once the lecture is over the story changes: it all becomes a question of the images, their selection, their visual qualities, their labeling and archiving. The function of the images also change: not only do they stand for an intellectual event in a row of lectures that become part of my intellectual history within many possible such histories but they also have to function as art, something not everybody else with images of lecturers demands of their images. This is my specific claim as an artist to impose them as artworks. And as with all artistic propositions the offer can be accepted or rejected. I basically spend my life trying to do exactly that: making what I declare as art, offering something to anybody interested in it as my art, an offer that is not and will never be accepted as such by all people. F+T: What are your criteria for selection, i.e. how do you choose which lectures to photograph, by lecturer, by topic, or do you photograph any and every lecture you can? RG: As everything in my life, I go by my interest which is the result of many factors. If I am aware of a lecturer, read his books or appreciate his works my interest of attending his much higher than if I am not aware of it. I usually don’t go to lecturers simply based on their subjects—something that can happen of course, if the subject, the title of the lecture is promising or at the heart of my interest. Sometimes I also wait for years to get a change to photograph certain people but I do that in a very low-level “keep your ears up” mentality and not in a systematic scanning of all channels and possibilities. I do not go into philosophy departments and photograph everybody teaching there. I go with the flow—and unfortunately a great deal of great talks I also miss because I hear too late of them. Often, I also stumble into them by traveling, by getting emails from friends and by simply being in the right spot at the right time. Somehow you could look at my lecture par cours as some kind of loose intellectual flâneurism . If you know of interesting lectures and events, please, let me know. F+T: Is your selection of images more of a production or post-production method? That is, do you take a lot of photos and select only a few images from each lecture, or do you take them very selectively? Do you have a particular methodology for the selection of images? RG: This all changed a bit with the arrival of digital photography. In the beginning I had to pay a lot of money for film developing. Hence, I was taking either one role - 36 images - or half a role - 13 images - depending on who talked and whether they projected images. With the unlimited capacity of digital imaging I easily end up between 30 and 150 images of one event still depending of whether images are presented or not. In the first years of that project when I wasn’t fully aware yet of what I was doing, I printed at least 2 images of any lecture and sometimes three or even four, a choice that was also constrained by costs. But again, since I have a web site and since images can easily be selected and presented on my web site without generating remarkable costs I have now more and more pain to reduce them to less than ten or eight images for an event. Now, before I have them printed which really is expensive, I can present them already as artwork on my web site without any immediate costs. Thus the economic factor is at the end of the chain which enables me to be more ‘generous’ and include more images. Over the last years I have been mostly selecting at least four photographs for a lecture unit but recently also as many as ten. But so far only one set above four images has been actually printed and sold. What might sound even more shocking is the likely fact that if a curator or a collector demands me to reduce the number of images due to costs, I might compromise at this current stage if the images have not been yet printed or published outside my own web site. This means that to a certain degree any selection that has only seen publication on my web site and not yet been produced runs the risk to change in numbers of images included. Needless to say, I am the last one that finally makes a decision and I do honor all given earlier decision if those were final. F+T: How do you feel the act of photographing the lecture affects your reception of the contents of the lecture? And your recollection afterwards, do you remember the lecture more having photographed it, or just having sat and listened? RG: As mentioned above, I get very little distraction from photographing since I can multitask well and do not obsess about the quality of the image: I photograph from where I am and listen with my ears and not my eyes. I am not sure whether the images serve as a mnemonic devise to the content of the lecture if there are no images involved but they at least remind me that the lecture existed, the title of the lecture and the name of the people and institutions involved. The titles of the hundreds of lectures I took during the past 15 years can also be read as an essay of theoretical life in that period. This will be come more and more visible as time passes by. These images age much better than I do. F+T: You mentioned at the outset of our discussions that you started this practice some time ago and have seen the practice of photographing lecturers become more commonplace. Why do you think that this shift has taken place? RG: The answer is very simple. Photographing is now free of any charge and hence omnipresent. You buy a phone or any other personal digital assistant and it has a camera integrated in it whether you want it or not. There is no need to develop images and there is no hassle to keep images, to distribute images, to organize images and save them. It is all virtual, not creating any costs and doesn’t require any efforts. You don’t spend twenty dollars for photo-developing anymore, you don’t need to walk anymore to your pharmacy or your photo shop to drop off and return to pick up and pay. You don’t need to go to the post office to send somebody a picture. You have a program like Photoshop already built into your camera. Photographing is now a thing for everybody—with functioning cameras made for two year olds. It is technically now nearly impossible to make bad images. The image quality is virtually guaranteed by cheap, high performing, mini-computers packed into miniscule cameras. With all these technological changes, we are undergoing now a cultural paradigm shift that includes permanent recording (not only still image taking) of everything. I wonder even whether babies are just born to be photographed—at least a process where the first photograph is right there. What is interesting now, is how the law is trying to catch up. I am experiencing and expecting more restrictions on photographing and recording—something already in place in many museums and in certain galleries—as the recording devices become more and more invisible and undetectable. It is an interesting cat and mouse play and will end up with some of us that are photographing the world around us in court. The world has become very transparent and everybody is contributing to it with social networking technologies—like twitter and Facebook—that are designed to monitor and communicate every step we make in our lives. F+T: Why did you start the practice? As a way to remember, or to capture the experience of the lecture and the environment there? RG: A couple of years earlier I started to photograph my own reading seminars as part of my art work with results that surprised me positively. I really liked these images of students and people discussing heavy non-fiction with me. The reading seminars justified this kind of pictorialism. Then in 1995 I had the chance to attend an entire seminar by Edward Said entitled “The Representation of Intellectuals at Columbia University,” which really gave me the idea to start this series. Why not also photograph these lectures I visit all the time since this really is a way of representing intellectuals? F+T: The constellation of images and the title seem like a kind of portrait, do you agree? If so, is it a portrait of the speaker, of yourself, or of the event? RG: Well, to follow up on the previous question the lectures are more than just portraits of lecturers since I include not only the speakers but also the audience, an audience that is not named or specifically highlighted as is the speaker. So if we stick with the metaphor of the portrait we would have to extend it also to the environment, the class room, the lecture hall, the arrangements of seats or benches, tables, lecture stands and other stuff typically seen on my images. Often the walls are decorated or even tagged with graffiti or posters and other stuff. There is a big difference between a small seminar room at the English Department of Columbia University, full with books and cabinets and a lecture room at a Paris or Frankfurt university that accommodates 50 to 150 people. We should, maybe, also distinguish between lectures that are one time events—mostly open to the public, free of charge or paid—and events that are weekly, closed to the public and held mostly in universities that can cost fortunes or be paid by the State as it is still predominantly the case in continental Europe. All this, of course, is not necessarily announced in the title of the lecture and is subject to information that isn’t visible on the images. To a certain degree we see also portraits of a general privilege when it comes to the public of certain institutions that are highly selective and extremely costly without forgetting that most of the lectures are dealing with theory, art, philosophy and other highbrow subjects. In general, I would say we see very little if we don’t know already what’s going on, who the lecturer, the institutions, the context are in which we subsequently can zoom into variants like sexual, racial, or age-related make-up without ignoring clothing fashions, hair styling, body mannerisms, gadgets and stuff. F+T: Do you see a relation between this body of work and your other work, for example your language studies? RG: Everything I do is “unfortunately” related. I say unfortunately because this makes my work not so easy to grasp. The relationship to the language studies is relatively clear since both are originally grounded in the domain of education and knowledge production. Nearly all my work comes across that nexus where knowledge and power are addressed. I was at one point wondering what the relationship was to some of my earlier indexical work where I was happy alone with footnotes from books painted on the walls: I came to understand that both are just different manifestations of knowledge and information. F+T: Do you foresee continuing the series indefinitely, or is there an end to it? RG: I think that I will continue this series indefinitely or to be more precise, as long as I go listen to lectures and want to learn something which brings me to your previous question: What do the reading seminars, language studies, historical research and lecture hopping have in common: I learn something. Further Reading Rainer Ganahl’s website William Kaizen. “ Vulgar Politics .” art&education . April 2009. Web. Smith, Roberta. “ Rainer Ganahl: ‘Language of Emigration & Pictures of Emigration .’” New York Times April 23 2010. Web. (shrink)

Domain experts regularly teach novice students how to perform a task. This often requires them to adjust their behavior to the less knowledgeable audience and, hence, to behave in a more didactic manner. Eye movement modeling examples (EMMEs) are a contemporary educational tool for displaying experts’ (natural or didactic) problem‐solving behavior as well as their eye movements to learners. While research on expert‐novice communication mainly focused on experts’ changes in explicit, verbal communication behavior, it is as yet unclear whether and (...) how exactly experts adjust their nonverbal behavior. This study first investigated whether and how experts change their eye movements and mouse clicks (that are displayed in EMMEs) when they perform a task naturally versus teach a task didactically. Programming experts and novices initially debugged short computer codes in a natural manner. We first characterized experts’ natural problem‐solving behavior by contrasting it with that of novices. Then, we explored the changes in experts’ behavior when being subsequently instructed to model their task solution didactically. Experts became more similar to novices on measures associated with experts’ automatized processes (i.e., shorter fixation durations, fewer transitions between code and output per click on the run button when behaving didactically). This adaptation might make it easier for novices to follow or imitate the expert behavior. In contrast, experts became less similar to novices for measures associated with more strategic behavior (i.e., code reading linearity, clicks on run button) when behaving didactically. (shrink)

Domain experts regularly teach novice students how to perform a task. This often requires them to adjust their behavior to the less knowledgeable audience and, hence, to behave in a more didactic manner. Eye movement modeling examples (EMMEs) are a contemporary educational tool for displaying experts’ (natural or didactic) problem‐solving behavior as well as their eye movements to learners. While research on expert‐novice communication mainly focused on experts’ changes in explicit, verbal communication behavior, it is as yet unclear whether and (...) how exactly experts adjust their nonverbal behavior. This study first investigated whether and how experts change their eye movements and mouse clicks (that are displayed in EMMEs) when they perform a task naturally versus teach a task didactically. Programming experts and novices initially debugged short computer codes in a natural manner. We first characterized experts’ natural problem‐solving behavior by contrasting it with that of novices. Then, we explored the changes in experts’ behavior when being subsequently instructed to model their task solution didactically. Experts became more similar to novices on measures associated with experts’ automatized processes (i.e., shorter fixation durations, fewer transitions between code and output per click on the run button when behaving didactically). This adaptation might make it easier for novices to follow or imitate the expert behavior. In contrast, experts became less similar to novices for measures associated with more strategic behavior (i.e., code reading linearity, clicks on run button) when behaving didactically. (shrink)

Entre Scylla y Caribdis -- El lenguaje adicional en Jacques Prévert -- L'étranger, absurdo y rebelión en Camus -- La existencia en profundidad.

Too often, identifying practices of silencing is a seemingly impossible exercise. Here I claim that attempting to give a conceptual reading of the epistemic violence present when silencing occurs can help distinguish the different ways members of oppressed groups are silenced with respect to testimony. I offer an account of epistemic violence as the failure, owing to pernicious ignorance, of hearers to meet the vulnerabilities of speakers in linguistic exchanges. Ultimately, I illustrate that by focusing on the ways in which (...) hearers fail to meet speaker dependency in a linguistic exchange, efforts can be made to demarcate the different types of silencing people face when attempting to testify from oppressed positions in society. (shrink)

This paper presents a literature review on the ethics of self-tracking technologies which are utilized by users to monitor parameters related to their activity and bodily parameters. By examining a total of 65 works extracted through a systematic database search and backwards snowballing, the authors of this review discuss three categories of opportunities and ten categories of concerns currently associated with self-tracking. The former include empowerment and well-being, contribution to health goals, and solidarity. The latter are social harms, (...) privacy and surveillance, ownership control and commodification of data, autonomy, data-facilitated harm, datafication and interpretability of data, negative impact on relation to self and others, shortcomings of design, negative impact on health perception, and regulation and enforcement of rules. The review concludes with a critical analysis of the existing literature and an overview of a future research agenda that could complement the current work on ethics of self-tracking. (shrink)

Two brief comments on Thong's Comparative Base Rate Tracking criterion of algorithmic fairness.

The relationship of embryonal carcinoma (EC) cells, the stem cells of germ cell‐ or embryo‐derived teratocarcinoma tumors, to early embryonic cells came under intense scrutiny in the early 1970s when mouse chimeras were produced between EC cells and embryos. These chimeras raised tantalizing possibilities and high hopes for different areas of research. The normalization of EC cells by the embryo lent validity to their use as in vitro models for embryogenesis and indicated that they might reveal information about the (...) relationship between malignancy and differentiation. Chimeras also showed the way for the potential introduction of genes, selected in EC cells in vitro, into the germ line of mice. Although EC cells provided material for the elucidation of early embryonic events and stimulated many studies of early molecular differentiation, after years of intense scrutiny, they fell short as the means of genetic manipulation of the germ line, although arguably they pointed the way to the development of embryonic stem (ES) cells that eventually fulfilled this goal. (shrink)

Consumer-targeted sleep tracking applications (STA) that run on mobile devices (e.g., smartphones) promise to be useful tools for the individual user. Assisted by built-in and/or external sensors, these apps can analyze sleep data and generate assessment reports for the user on their sleep duration and quality. However, STA also raise ethical questions, for example, on the autonomy of the sleeping person, or potential effects on third parties. Nevertheless, a specific ethical analysis of the use of these technologies is still (...) missing so far. The aim of the current analysis is to identify the characteristics of sleep tracking apps and to explore the specific ethical aspects associated with this form of self-tracking. Firstly, the field of mobile health applications was screened for STA to explore their typical functions and target user groups. Secondly, an ethical analysis was conducted focusing on the three ethical dimensions: (1) medicalization, (2) vulnerability, and (3) relationality. The analysis indicates that these three normative dimensions are decisive for assessing STA and that the ethical profile of this technology varies greatly depending on the respective user group. As the three dimensions medicalization, vulnerability, and relationality play a distinguishing role in the use of STA, they should be especially addressed in responsible development and implementation of STA. In addition, the analysis helps to evaluate the use of STA, in terms of different risks for specific user groups, the sensitive contexts of usage, and potential interference with the intimacy of third parties. (shrink)

We identify a particular mouse, [Formula: see text], the minimal ladder mouse, that sits in the mouse order just past [Formula: see text] for all n, and we show that [Formula: see text], the set of reals that are [Formula: see text] in a countable ordinal. Thus [Formula: see text] is a mouse set. This is analogous to the fact that [Formula: see text] where [Formula: see text] is the sharp for the minimal inner model with (...) a Woodin cardinal, and [Formula: see text] is the set of reals that are [Formula: see text] in a countable ordinal. More generally [Formula: see text]. The mouse [Formula: see text] and the set [Formula: see text] compose the next natural pair to consider in this series of results. Thus we are proving the mouse set theorem just past projective. Some of this is not new. [Formula: see text] was known in the 1990s. But [Formula: see text] was open until Woodin found a proof in 2018. The main goal of this paper is to give Woodin’s proof. (shrink)

Since intelligent design (ID) advocates claimed the ubiquitous mouse trap as an example of systems that cannot have evolved, mouse trap history is doubly relevant to studying material culture. On the one hand, debunking ID claims about mouse traps and, by implication, also about other irreducibly complex systems has a high educational value. On the other hand, a case study of mouse trap history may contribute insights to the academic discussion about material culture evolution. Michael Behe (...) argued that mouse traps cannot trap mice with any part missing; therefore, they cannot have a precursor with one part less, therefore, cannot have a continuous history, and therefore, cannot have evolved. The patented and seminal precursor of current flat snap traps, however, had one part less, because spring and striker were formed of one wire. Secondly, historical records that reach back into the Bronze Age suggest that its history continued for a very long time. Thirdly, all prerequisites for evolution (variation, transmission, and selection) abound in mouse trap populations. Hence, Behe’s triple-jump conclusion about mouse traps is false each step. There is no, in principle, impossibility for mouse traps to evolve. An evolutionary account of mouse trap history also has academic merits beyond its educational value. Three important conclusions can be drawn: (1) reticulate phylogenies of artifact systems may be resolvable as overlapping, but branching, phylogenies of parts; (2) homologous ideas may be realized by analogous material, that is, phylogenies of information do not necessarily coincide with those of material parts; (3) recombination of parts between different artifact systems increases the cumulative nature of cultural evolution. (shrink)

When ordinary people - mathematicians among them - take something to follow (deductively) from something else, they are exposing the backbone of our self-ascribed ability to reason. Jody Azzouni investigates the connection between that ordinary notion of consequence and the formal analogues invented by logicians. One claim of the book is that, despite our apparent intuitive grasp of consequence, we do not introspect rules by which we reason, nor do we grasp the scope and range of the domain, as it (...) were, of our reasoning. This point is illustrated with a close analysis of a paradigmatic case of ordinary reasoning: mathematical proof. (shrink)