Enumeration in time is irresistibly event-based

Psychonomic Bulletin & Review - One of the most fundamental questions that can be asked about any process concerns the underlying units over which it operates. And this is true not just for...     

Practicing Engineering Ethics in Global Context: A Comparative Study of Expert and Novice Approaches to Cross-Cultural Ethical Situations

Science and Engineering Ethics - Engineers and other technical professionals are increasingly challenged by the impacts of globalization. Further, engineering educators, technical managers, and...     

Neighborhood Stress and Life Satisfaction: Is there a Relationship for African American Adolescents?

Applied Research in Quality of Life - This study identified associations between perceived neighborhood stress and adolescents’ perceptions of life satisfaction. African American adolescents...     

Student volunteer social support and infant intervention: A case study

The emphases in infant mental health have been in the three areas of supporting the mother-infant dyad through education, psychotherapy to help parents resolve emotional conflicts that interfere with the parent-infant interaction, and support during the acute crisis that follows an abnormal birth. The case described herein involves a child with a genetic defect born to competent parents, a chronic stressful situation that does not fit these categories. It became apparent in the first few months after the birth that both the child and parents were in need of some help in coping with the situation. An intervention was designed to help provide both the necessary stimulation for the baby and the needed emotional support for the family, while it acknowledged their skill and competencies as parents. This was done through the help of college student volunteers, who assisted the mother in the home. Developmental data recorded at birth, 7 months, 12 months, and 39 months indicate that the child is severely multiply handicapped. Interview data with the parents at those times document their personal and family difficulties, the eventual resolution as a family in dealing with this problem, and the importance of the volunteer help during that process.     

Fear and aggression in the rat

The effect of fear on two types of aggression in rats was investigated by adding a cat stimulus to a colony in which the dominant male was attacking an intruder (offensive aggression), or, to a tube test situation in which defensive biting was measured before and during tail shock. The cat completely abolished offense in the colony; when the cat was presented and removed before a strange rat was placed in the colony, attack on the intruder was also reduced. In contrast, defensive biting was unchanged or even slightly potentiated by the presence of the cat, demonstrating a separation of the effects of fear on offensive and defensive aggression.     

Virtual reality and the new psychophysics

Virtual reality (VR) promises methodological rigour with the extra benefit of allowing us to study the context-dependent behaviour of individuals in their natural environment. Pan and Hamilton (2018, Br. J. Psychol.) provide a useful overview of methodological recommendations for using VR. Here, we highlight some other aspects of the use of VR. Our first argument is that VR can be useful by virtue of its differences from the normal perceptual environment. That is, by virtue of its relative non-realism and poverty of its perceptual elements, it can actually offer increased clarity with respect to the features of interest for the researcher. Our second argument is that VR exerts its measurable influence more by eliciting an acceptance of the virtual world (i.e., ‘suspension of disbelief’) rather than by eliciting a true belief of the realism of the VR environment. We conclude by providing a novel suggestion for combining neuroimaging methods with embodied VR that relies on the suspension of disbelief.     

Posttraumatic Stress Disorder Symptom Clusters and Acquired Capability for Suicide: A Reexamination Using DSM-5 Criteria

This study used the interpersonal–psychological theory of suicide to explore the relationships among DSM-5 posttraumatic stress disorder (PTSD) symptom clusters derived from the six-factor anhedonia model and facets of acquired capability for suicide (ACS). In a sample of 373 trauma-exposed undergraduates, most PTSD symptom clusters were negatively associated with facets of ACS in bivariate correlations, but the anhedonia cluster was positively associated with ACS in regression models. Structure coefficients and commonality analysis indicated that anhedonia served as a suppressor variable for the other symptom clusters. Our findings further elucidate the complex relationship between specific PTSD symptom clusters and ACS.