Competency to stand trial evaluations: A state-wide review of court-ordered reports

Competence to stand trial (CST) evaluations are a critical part of certain criminal proceedings, and competence-related evaluation and treatment are an increasing part of public mental health services. Whereas more research describes the defendants undergoing competence evaluations, less research has examined the actual reports detailing those competence evaluations. This study reviewed 3,644 court-ordered CST evaluation reports submitted by 126 evaluators in Virginia since Virginia initiated an oversight system allowing for comprehensive review. The base rate of incompetence opinions was 38.8%, but these rates varied significantly across evaluation type (initial versus post-restoration efforts) and evaluators (ranging from 9.1% to 76.8% incompetence rate). Results suggest generally strong compliance with state statutes guiding CST evaluations, but also highlight marked variability in forensic conclusions and reveal a few areas in which some reports fell short of statutory requirements and practice guidelines.     

Not all same-different discriminations are created equal: Evidence contrary to a unidimensional account of same-different learning

In Experiment 1, we trained four pigeons to concurrently discriminate displays of 16 same icons (16S) from displays of 16 different icons (16D) as well as between displays of same icons (16S) from displays that contained 15 same icons and one different icon (15S:1D). The birds rapidly learned to discriminate 16S vs. 16D displays, but they failed to learn to discriminate 16S vs. 15S:1D displays. In Experiment 2, the same pigeons acquired the 16S vs. 15S:1D task after being required to locate and peck at the odd-item in the 15S:1D displays. Acquisition of the 16S vs. 15S:1D task had little effect on discriminative performance in the concurrent 16S:16D task, suggesting that a unidimensional entropy explanation for mastery of these two same-different tasks is not viable. During testing, the birds transferred discriminative performance in both tasks to displays composed of different visual stimuli. Such concurrent discrimination learning, performance, and transfer suggest that pigeons are flexible in the way they process the displays seen in these two same-different tasks.     

Longitudinal Patterns of Self-Regulation among Ethnic Minority Children Facing Poverty

Early poverty is associated with a cumulative load of family and community risk factors that can impact the development of self-regulatory abilities and result in socio-emotional and achievement gaps which begin early and persist across the lifespan. Ethnic minorities are disproportionately represented among children living in poverty. The longitudinal trajectories of self-regulation are important to understand in this population, in order to best inform prevention efforts. This study examines patterns of self-regulation over time among young, ethnic minority children living in low income, urban households. A stratified, random sample of 555 children, ages 2 to 4 years, (46% Black, 46% Hispanic; 47% female) were followed over three waves (including 1 and 5 year follow-ups). Internalizing and externalizing behaviors at approximately age nine were predicted by children’s early self-regulation. Latent class analyses revealed low, medium, and high levels of self-regulatory abilities at wave 1 (mean age: 2.99, SD?=?.81) and low and high levels, 1 year later (mean age: 4.39 (SD?=?.94). A gender effect was found whereby girls were more likely than boys to be in the high self-regulation class relative to the low at both waves. Using Latent Transition Analysis, distal outcomes were examined approximately 5 years after the initial assessment (mean age: 8.83, SD?=?.93). Children who sustained a higher level of self-regulation over time had the lowest internalizing and externalizing behaviors. Transition to low self-regulation at wave 2, regardless of initial self-regulation status, was related to greater severity of internalizing symptoms. Implications for prevention and future research are discussed.     

The Happy Personality in India: The Role of Emotional Intelligence

This study examined the relations among the big five personality traits, emotional intelligence, and happiness. Participants included 205 (51 females, 154 males) university students in India. A series of mediational path analyses tested whether emotional intelligence mediated the relationship between personality traits and feelings of happiness. The analyses revealed that emotional intelligence mediates associations between several personality factors and happiness for females but not for males. Specifically, for females, emotional intelligence mediated the associations from conscientiousness and emotional instability to happiness, while males evidenced only direct associations. The findings suggest different associations than those of past studies regarding personality and happiness in Western samples. According to these results from an Indian sample, emotional intelligence may serve as an intermediary from personality to happiness for females, but has independent contributions to happiness for males.     

Clark’s nutcrackers (<Emphasis Type="Italic">Nucifraga columbiana</Emphasis>) use gestures to identify the location of hidden food

Heterospecific cues, such as gaze direction and body position, may be an important source of information that an animal can use to infer the location of resources like food. The use of heterospecific cues has been largely investigated using primates, dogs, and other mammals; less is known about whether birds can also use heterospecific gestures. We tested six Clark’s nutcrackers in a two-way object-choice task using touch, point, and gaze cues to investigate whether these birds can use human gestures to find food. Most of the birds were able to use a touch gesture during the first trial of testing and were able to learn to use point and gaze (eyes and head alternation) cues after a limited number of trials. This study is the first to test a non-social corvid on the object-choice task. The performance of non-social nutcrackers is similar to that of more social and related corvids, suggesting that species with different evolutionary histories can utilize gestural information.     

Noncategorical approaches to feature prediction with uncertain categories

In four experiments, we investigated how people make feature predictions about objects whose category membership is uncertain. Artificial visual categories were presented and remained in view while a novel instance with a known feature, but uncertain category membership was presented. All four experiments showed that feature predictions about the test instance were most often based on feature correlations (referred to as feature conjunction reasoning). Experiment 1 showed that feature conjunction reasoning was generally preferred to category-based induction in a feature prediction task. Experiment 2 showed that people used all available exemplars to make feature conjunction predictions. Experiments 3 and 4 showed that the preference for predictions based on feature conjunction persisted even when category-level information was made more salient and inferences involving a larger number of categories were required. Little evidence of reasoning based on the consideration of multiple categories (e.g., Anderson, (Psychological Review, 98:409–429, 1991)) or the single, most probable category (e.g., Murphy & Ross, (Cognitive Psychology, 27:148–193, 1994)) was found.     

Direct perception of action-scaled affordances: the shrinking gap problem

The aim of this study was to investigate the perception of possibilities for action (i.e., affordances) that depend on one's movement capabilities, and more specifically, the passability of a shrinking gap between converging obstacles. We introduce a new optical invariant that specifies in intrinsic units the minimum locomotor speed needed to safely pass through a shrinking gap. Detecting this information during self-motion requires recovering the component of the obstacles' local optical expansion attributable to obstacle motion, independent of self-motion. In principle, recovering the obstacle motion component could involve either visual or non-visual self-motion information. We investigated the visual and non-visual contributions in two experiments in which subjects walked through a virtual environment and made judgments about whether it was possible to pass through a shrinking gap. On a small percentage of trials, visual and non-visual self-motion information were independently manipulated by varying the speed with which subjects moved through the virtual environment. Comparisons of judgments on such catch trials with judgments on normal trials revealed both visual and non-visual contributions to the detection of information about minimum walking speed.