Environmental enrichment protects against the effects of chronic stress on cognitive and morphological measures of hippocampal integrity

Chronic stress has detrimental effects on hippocampal integrity, while environmental enrichment (EE) has beneficial effects when initiated early in development. In this study, we investigated whether EE initiated in adulthood would mitigate chronic stress effects on cognitive function and hippocampal neuronal architecture, when EE started one week before chronic stress began, or two weeks after chronic stress onset. Adult male Sprague Dawley rats were chronically restrained (6h/d) or assigned as non-stressed controls and subdivided into EE or non-EE housing. After restraint ended, rats were tested on a radial arm water maze (RAWM) for 2-d to assess spatial learning and memory. The first study showed that when EE began prior to 3-weeks of chronic stress, EE attenuated chronic stress-induced impairments in acquisition, which corresponded with the prevention of chronic stress-induced reductions in CA3 apical dendritic length. A second study showed that when EE began 2-weeks after the onset of a 5-week stress regimen, EE blocked chronic stress-induced impairments in acquisition and retention at 1-h and 24-h delays. RAWM performance corresponded with CA3 apical dendritic complexity. Moreover, rats in EE housing (control or stress) exhibited similar corticosterone profiles across weeks, which differed from the muted corticosterone response to restraint by the chronically stressed pair-housed rats. These data support the interpretation that chronic stress and EE may act on similar mechanisms within the hippocampus, and that manipulation of these factors may yield new directions for optimizing brain integrity and resilience under chronic stress or stress related neuropsychological disorders in the adult.     

Advocacy and Empowerment in Parent Consultation: Implications for Theory and Practice

In this article, the authors expand the view of parental consultation to include advocacy and empowerment as important contextual considerations. A brief review of existing approaches to parent consultation is provided. Selected advances in multicultural parent consultation are also presented. An advocacy‐and empowerment‐focused perspective is offered that describes the power of consultation with parents from marginalized backgrounds. A case vignette is provided to illustrate the implications for practice.     

Classification objects, ideal observers & generative models

A successful vision system must solve the problem of deriving geometrical information about three-dimensional objects from two-dimensional photometric input. The human visual system solves this problem with remarkable efficiency, and one challenge in vision research is to understand how neural representations of objects are formed and what visual information is used to form these representations. Ideal observer analysis has demonstrated the advantages of studying vision from the perspective of explicit generative models and a specified visual task, which divides the causes of image variations into the separate categories of signal and noise. Classification image techniques estimate the visual information used in a task from the properties of “noise” images that interact most strongly with the task. Both ideal observer analysis and classification image techniques rely on the assumption of a generative model. We show here how the ability of the classification image approach to understand how an observer uses visual information can be improved by matching the type and dimensionality of the model to that of the neural representation or internal template being studied. Because image variation in real world object tasks can arise from both geometrical shape and photometric (illumination or material) changes, a realistic image generation process should model geometry as well as intensity. A simple example is used to demonstrate what we refer to as a “classification object” approach to studying three-dimensional object representations.     

Teaching Mindfulness for the Self-Care and Well-Being of Counselors-in-Training

ABSTRACT

The demands and expectations placed on counselors-in-training can make them susceptible to stress, burnout, and poor school-life balance. Therefore, counseling students could benefit from learning mindfulness techniques as self-care strategies that promote increased relaxation, coping, and stress prevention. This mixed-methods study examined graduate counseling students’ perceptions of mindfulness training to determine its impact on self-efficacy, mood, stress, and other areas of wellness. Participants reported enhanced relaxation, increased awareness of the need for self-care, better understanding of the connection between mindfulness and overall well-being, and an impact of mindfulness on other areas of their lives.     

CRITERIA USED TO DEFINE AND EVALUATE SOCIALLY COMPETENT BEHAVIOR AMONG WOMEN

Criteria used to evaluate socially competent behavier of women are described and critiqued. Many definitions of social competence do not employ a process view of social behavier in which individual goals and values as well as specific verbal and nonverbal behaviers are considered. This may result in the imposition of artificial goals on consumers of assertion and social skills training programs and the neglect of individual goals. The relationship between the definition of competence used and the assessment methods relied on is discussed. The advantages of focusing on specific goals are noted and a checklist that consumers can use to review the content of training programs is provided.     

Attachment, sleep quality, and depressed affect.

This study examined the role of attachment insecurity in sleep problems among married adults (N=78 couples). Using the Pittsburgh Sleep Quality Index and structural equation modeling, attachment anxiety was associated with higher levels of self-reported sleep difficulties for men and women, whereas attachment avoidance was not. Depressed affect was included as a control variable, and the effect of attachment anxiety remained significant. Men and women did not differ significantly in the magnitude of the effect of attachment anxiety on sleep quality. In addition, there were no cross-partner effects of attachment insecurity on sleep quality or depressed affect. Implications and future directions are discussed.     

Suicide across the Life Span: Pathways to Prevention

As reflected in a recent series of highly visible suicide awareness and prevention activities, the call for a comprehensive suicide prevention strategy has never been stronger, nor more unified. Using the framework provided by the transactional model of human development, the author illustrates the central implications that a developmental perspective has for suicide prevention, emphasizing the need to consider multiple pathways to prevention, to place renewed emphasis on prevention strategies that have their impact earlier in the life course and earlier in the course of mental disorder, and to collaborate with prevention specialists and advocates in related fields.     

A Prospective Examination of the Interpersonal‐Psychological Theory of Suicidal Behavior Among Psychiatric Adolescent Inpatients

The challenge of identifying suicide risk in adolescents, and particularly among high‐risk subgroups such as adolescent inpatients, calls for further study of models of suicidal behavior that could meaningfully aid in the prediction of risk. This study examined how well the Interpersonal‐Psychological Theory of Suicidal Behavior (IPTS)—with its constructs of thwarted belongingness (TB), perceived burdensomeness (PB), and an acquired capability (AC) for lethal self‐injury—predicts suicide attempts among adolescents (N = 376) 3 and 12 months after hospitalization. The three‐way interaction between PB, TB, and AC, defined as a history of multiple suicide attempts, was not significant. However, there were significant 2‐way interaction effects, which varied by sex: girls with low AC and increasing TB, and boys with high AC and increasing PB, were more likely to attempt suicide at 3 months. Only high AC predicted 12‐month attempts. Results suggest gender‐specific associations between theory components and attempts. The time‐limited effects of these associations point to TB and PB being dynamic and modifiable in high‐risk populations, whereas the effects of AC are more lasting. The study also fills an important gap in existing research by examining IPTS prospectively.