The Appearance‐Change Instruction Does Not Improve Line‐up Identification Accuracy

In many jurisdictions, police instruct a witness, before presenting a photo line‐up, that the suspect's appearance may be different in the photo than it was at the time of the crime. The experiments reported here examine the impact of this ‘appearance‐change instruction’ (ACI), exploring its effects with different crimes, perpetrators, line‐ups, and different phrasings of the ACI. The data indicate that the ACI increases witnesses' willingness to make a choice from a line‐up but does not increase accuracy. Copyright © 2013 John Wiley & Sons, Ltd.     

From the Galleries to the Clinic: Applying Art Museum Lessons to Patient Care

Increasingly, medical educators integrate art-viewing into curricular interventions that teach clinical observation—often with local art museum educators. How can cross-disciplinary collaborators explicitly connect the skills learned in the art museum with those used at the bedside? One approach is for educators to align their pedagogical approach using similar teaching methods in the separate contexts of the galleries and the clinic. We describe two linked pedagogical exercises—Visual Thinking Strategies (VTS) in the museum galleries and observation at the bedside—from “Training the Eye: Improving the Art of Physical Diagnosis,” an elective museum-based course at Harvard Medical School. It is our opinion that while strategic interactions with the visual arts can improve skills, it is essential for students to apply them in a clinical context with faculty support—requiring educators across disciplines to learn from one another.     

A Review of Reviews Examining Neurological Processes Relevant to Impact of Parental PTSD on Military Children: Implications for Supporting Resilience

In this study, 10 recent meta-analytic and systematic review studies were synthesized on the neurological underpinnings of stress and trauma with implications for the impact of parental post-traumatic stress disorder (PTSD) and resilience among military children. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) group guidelines and utilizing a validated quality assessment tool, this systematic review of reviews incorporated results from more than 35,971 individuals with stress exposures, effects, or disorders and healthy controls. This synthesis found support for important gene, physiology, and environment correlations and interactions that predict increased risk for stressful life events and PTSD, but not direct transmission, among military children. Future research is needed to determine if these constitute indirect pathways of intergenerational transmission in military children.     

Compensation for Historical Emissions and Excusable Ignorance

This article defends the idea of applying principles of corrective justice to the matter of climate change. In particular, it argues against the excusable ignorance objection, which holds that historical emissions produced at a time when our knowledge of climate change was insufficient ought to be removed from the equation when applying rectificatory principles to this context. In constructing my argument, I rely on a particular interpretation of rectificatory justice and outcome responsibility. I also address the individualism objection by showing why we should view states as relevant agents of climate change. This argument is built on the assumption that states are institutions set up to coordinate and regulate human interaction, so as to protect their citizens from the unwanted consequences of such interaction.     

Trends in selected entry‐level technology,interpersonal, and basic communication scans skills: 1992–2002

The authors describe a longitudinal study that was conducted to identify trends in entry‐level technology, interpersonal, and basic communication competencies and skills using classified newspaper advertisements from 10 U.S. standard metropolitan statistical areas. To date, 4,200 advertisements have been analyzed for 2 competencies and 1 foundational skill from the “Workplace Know‐Hows” identified in the 1991 report of the U.S. Department of Labor Secretary's Commission on Achieving Necessary Skills (SCANS). Data for the year 2002 indicated that the workplace continues to seek the competencies and skills advocated by the SCANS authors.     

Creating physically accurate visual stimuli for free: Spectral rendering with RADIANCE

Visual psychophysicists, who study object, color, and light perception, have a demand for software that produces complex but, at the same time, physically accurate stimuli for their experiments. The number of computer graphic packages that simulate the physical interaction of light and surfaces is limited, and mostly they require the purchase of a license. RADIANCE (Ward, 1994), however, is freely available and popular in the visual perception community, making it a prime candidate. We have shown previously that RADIANCE's simulation accuracy is greatly improved when color is coded by spectra, rather than by the originally envisaged RGB triplets (Ruppertsberg & Bloj, 2006). Here, we present a method for spectral rendering with RADIANCE to generate hyperspectral images that can be converted to XYZ images (CIE 1931 system) and then to machine-dependent RGB images. Generating XYZ stimuli has the added advantage of making stimulus images independent of display devices and, thereby, facilitating the process of reproducing results across different labs. Materials associated with this article may be downloaded from www.psychonomic.org.     

Mental Health Risk and Social Ecological Variables Associated with Educational Attainment for Gulf War Veterans: Implications for Veterans Returning to Civilian Life

This study examines how post-secondary educational attainment among young veterans of the first gulf war affects their mental health status. The all-volunteer military attracts recruits by offering them veterans’ educational benefits. Education should help veterans adjust to civilian life. Few studies have shown whether education following military service helps improve veterans’ mental health, however. Viewing resiliency, life span and life course, and social geography theories through the lens of social ecology, it is hypothesized that selected contextual factors in the personal, interpersonal, and organizational domains could mediate or moderate the relationship between education and veterans’ mental health. Informational social networks showed an association with obtaining mental illness treatment. Recent treatment for post-traumatic stress disorder (PTSD) showed an association with use of veterans’ educational benefits. Residing with a small nuclear family in conjunction with having higher levels of health and educational benefits and a higher family income was associated with higher educational attainment.     

Neural correlates of partial transmission of sensorimotor information in the cerebral cortex

Using single neuron recordings in monkey primary motor (MI) cortex, two series of experiments were conducted in order to know whether response preparation can begin before perceptual processing finishes, thus providing evidence for a temporal overlap of perceptual and motor processes.

In Experiment 1, a “left/right, Go/No-Go” reaction time (RT) task was used. One monkey was trained to perform wrist flexion/extension movements to align a pointer with visual targets. The visual display was organized to provide a two-dimensional stimulus: side (an easy discrimination between left and right targets) which determined movement direction, and distance (a difficult discrimination between distal and proximal targets) which determined whether or not the movement was to be made. Changes in neuronal activity, when they were time-locked to the stimulus, were almost similar in the Go and No-Go trials, and when they were time-locked to movement onset, were markedly reduced in No-Go as compared to Go trials.

In Experiment 2, a stimulus-response compatibility (SRC) task was used. Two monkeys were trained to align a pointer with visual targets, on either left or right. In the spatially “compatible” trials, they had to point at the stimulus position, whereas in the “incompatible” trials, they had to point at the target located in the opposite side. For 12.5% of neurons, changes in activity associated with incompatible trials looked like changes in activity associated with movements performed in the opposite direction during compatible trials, thus suggesting the hypothesis of an automatic activation of the congruent, but incorrect response.

Results of both experiments provide evidence for a partial transmission of information from visual to motor cortical areas: that is, in the No-Go trials of the first task, information about movement direction, before the decision to perform or not this movement was made, and, in the incompatible trials of the SRC task, information about the congruent, but incorrect response, before the incongruent, but correct response was programmed.     

Neural synchrony in stochastic resonance, attention, and consciousness.

We describe briefly three of our lab's ongoing projects studying the role of neural synchrony in human perception and cognition. These projects arise from two main interests: the role of noise both in human perception and in neural synchrony, and neural synchrony as a basis for integration of functional modules in the brain. Our experimental work on these topics began with a study of the possibility that noise-influenced neural synchrony might be responsible for the fact that small amounts of noise added to weak signals can enhance their detectability (stochastic resonance). We are also studying the role of neural synchrony in attention and consciousness in several paradigms. On the basis of our own and related work by others, we conclude that (1) neural synchrony plays an important role in the integration of functional modules in the brain and (2) neural synchrony is profoundly affected and possibly regulated, in part, by the "noisiness" of the brain.