The effect of in-vehicle warning systems on speed compliance in work zones

The purpose of this research was to evaluate the effectiveness of augmented in-vehicle speed warnings on driver behavior in work zones. The influence of three device configurations were examined as the drivers entered a work zone which was presented in a simulated driving environment. The first configuration was a control condition which used only traditional signage. The second condition had the addition of a visual in-vehicle warning while the final condition had the addition of an auditory in-vehicle warning. Results indicated that adding in-vehicle warnings did affect driver compliance to the work zone speed limit. Participants in the audio warning condition responded more quickly to the warning than those in the visual condition. Both augmented warning configurations differed significantly and were each respectively different from the drivers in the control condition. Based on these results we suggest a combination of in-vehicle warnings. Upon entry of the work zone we suggest a combined audio and visual warning message. However, after the initial entry phase, a visual warning message shows greater promise for the on-going modulation of driver speed transit.     

From data to phenomena and back again: computer-simulated signatures

This paper draws attention to an increasingly common method of using computer simulations to establish evidential standards in physics. By simulating an actual detection procedure on a computer, physicists produce patterns of data (‘signatures’) that are expected to be observed if a sought-after phenomenon is present. Claims to detect the phenomenon are evaluated by comparing such simulated signatures with actual data. Here I provide a justification for this practice by showing how computer simulations establish the reliability of detection procedures. I argue that this use of computer simulation undermines two fundamental tenets of the Bogen–Woodward account of evidential reasoning. Contrary to Bogen and Woodward’s view, computer-simulated signatures rely on ‘downward’ inferences from phenomena to data. Furthermore, these simulations establish the reliability of experimental setups without physically interacting with the apparatus. I illustrate my claims with a study of the recent detection of the superfluid-to-Mott-insulator phase transition in ultracold atomic gases.     

Disparities in the moral intuitions of criminal offenders: The role of psychopathy

The present study examined whether and in what ways psychopathy is associated with abnormal moral intuitions among criminal offenders. Using Haidt et al.’s Moral Foundations Questionnaire, 222 adult male offenders assessed for clinical psychopathy reported their degree of support for five moral domains: Harm Prevention, Fairness, Respect for Authority, Ingroup Loyalty, and Purity/Sanctity. As predicted, psychopathy total score explained a substantial proportion of the variance in reduced support for Harm Prevention and Fairness, but not the other domains. These results confirm that psychopathy entails a discrete set of moral abnormalities and suggest that these abnormalities could potentially help to explain the characteristic antisocial behavior of individuals with psychopathy.     

Countering the Vices: On the Neglected Side of Character Education

Following the rise of virtue and character education, educational philosophers have recently given much attention to questions relating to virtue and the good. This, however, has not been paralleled by a similar interest in vice and evil, which, in this context, are examined only rarely. In this article, I use the work of the American philosopher John Kekes as a backdrop for discussing the role coping with vice and evil should play in virtue and character education. I show how Kekes’ assumptions that people have natural inclinations towards both virtue and vice and that evil and vice are an inevitable part of human existence lead to the idea that character education should explicitly discuss not only the virtues but also the vices, that it should promote self-control and that it should bring people to recognize that they have mixed moral inclinations. I then argue that even if we reject Kekes’ key assumptions, embracing these three ideas that attempt to provide means to counter the vices might still have marked benefits for character education. The article concludes by suggesting that while the ideas that stem from Kekes’ approach should not necessarily be embraced, the themes that they raise call for greater consideration and further analysis.     

Levels of processing influences both recollection and familiarity: evidence from a modified remember-know paradigm

A modified Remember/Know (RK) paradigm was used to investigate reported subjective awareness during retrieval. Levels of processing (shallow vs. deep) was manipulated at study. Word pairs (old/new or new/new) were presented during test trials, and participants were instructed to respond "remember" if they recollected one of the two words, "know" if the word was familiar in the absence of recollection, or "new" if they judged both words to be new. Participants were then required to indicate which of the 2 words was old (2AFC recognition). With the standard RK proportions, deeper processing at study increased remember proportions and decreased know proportions, but this dissociation was not shown with the 2AFC proportion correct measure which instead demonstrated robust LOP effects for both remember and know trials, suggesting that the know proportion measure severely distorts the nature of LOP effects on familiarity.     

Are multiple visual short-term memory storages necessary to explain the retro-cue effect?

Recent research has shown that change detection performance is enhanced when, during the retention interval, attention is cued to the location of the upcoming test item. This retro-cue advantage has led some researchers to suggest that visual short-term memory (VSTM) is divided into a durable, limited-capacity storage and a more fragile, high-capacity storage. Consequently, performance is poor on the no-cue trials because fragile VSTM is overwritten by the test display and only durable VSTM is accessible under these conditions. In contrast, performance is improved in the retro-cue condition because attention keeps fragile VSTM accessible. The aim of the present study was to test the assumptions underlying this two-storage account. Participants were asked to encode an array of colors for a change detection task involving no-cue and retro-cue trials. A retro-cue advantage was found even when the cue was presented after a visual (Experiment 1) or a central (Experiment 2) interference. Furthermore, the magnitude of the interference was comparable between the no-cue and retro-cue trials. These data undermine the main empirical support for the two-storage account and suggest that the presence of a retro-cue benefit cannot be used to differentiate between different VSTM storages.     

Spatial frequency filtering and the direct control of fixation durations during scene viewing

The present study employed a saccade-contingent change paradigm to investigate the effect of spatial frequency filtering on fixation durations during scene viewing. Subjects viewed grayscale scenes while encoding them for a later memory test. During randomly chosen saccades, the scene was replaced with an alternate version that remained throughout the critical fixation that followed. In Experiment 1, during the critical fixation, the scene could be changed to high-pass and low-pass spatial frequency filtered versions. Under both conditions, fixation durations increased, and the low-pass condition produced a greater effect than the high-pass condition. In subsequent experiments, we manipulated the familiarity of scene information during the critical fixation by flipping the filtered scenes upside down or horizontally. Under these conditions, we observed lengthening of fixation durations but no difference between the high-pass and low-pass conditions, suggesting that the filtering effect is related to the mismatch between information extracted within the critical fixation and the ongoing scene representation in memory. We also conducted control experiments that tested the effect of changes to scene orientation (Experiment 2a) and the addition of color to a grayscale scene (Experiment 2b). Fixation distribution analysis suggested two effects on the distribution fixation durations: a fast-acting effect that was sensitive to all transsaccadic changes tested and a later effect in the tail of the distribution that was likely tied to the processing of scene information. These findings are discussed in the context of theories of oculomotor control during scene viewing.     

When stepping outside the self is not enough: A self-distanced perspective reduces the experience of basic but not of self-conscious emotions

Despite recent increased interest in self-conscious emotions, few studies have investigated their regulation. The current research examines the effectiveness of self-perspective in regulating negative self-conscious (guilt, shame) versus basic (anger, sadness) emotions. We predict that adopting a distanced perspective on the self would attenuate the experience of anger and sadness, as previous research has shown (e.g., Kross et al., 2005). However, because the experience of self-conscious emotions involves self-evaluation as well as the evaluation of the self from the perspective of others, a self-distanced perspective may enable these emotions and fail to attenuate the experience of shame and guilt. As predicted, a self-distanced perspective attenuated feelings of sadness and anger, but not of shame and guilt. These findings suggest the appraisal of the experienced emotion (i.e., whether it involves self-evaluations and/or the perspective of others) may influence the effectiveness of emotion-regulation strategies.     

Better Identity Politics

Suchet's paper is an inspiring demonstration of the power of openness and vulnerability. It offers a clinically daring and theoretically far-reaching account of the transformation that can sometimes occur in the psychoanalytic relationship. My commentary focuses on two of the paper's major threads: the interplay of subjective experience, intersubjective space, and collective forces, and the ethical dimension of the psychoanalytic project. From the outset, the meeting between Ara and Suchet is not only a meeting of bodies and minds, but also a meeting of collective histories and politics. Suchet finds, and in her account powerfully demonstrates, that addressing her patient's trouble requires an exploration of how collective traumas and political narratives infuse the possibilities of intersubjective exchange and subjective meaning. In my commentary I trace and elaborate on the trajectory of this analytic process, contemplating the ways in which identities and identifications involve both familial and social attachments. I attempt to highlight Suchet's contribution to our understanding of how what happens, and is made meaningful, in the register of collective identification and experience, forms the very substance of subjective and intersubjective life, and should be therefore formulated as an intrinsic aspect of the analytic endeavour. Turning to Suchet's engagement with the philosophy of Emmanuel Levinas, I consider her drive to reach beyond the traditional boundaries of psychoanalytic discourse. Following the same drive, I add some ideas developed by Theodor Adorno, as means of illustrating the trouble and the potential for reconciliation inherent in the experience and politics of identity.