Acetylcholine release in the hippocampus and striatum during place and response training

These experiments examined the release of acetylcholine in the hippocampus and striatum when rats were trained, within single sessions, on place or response versions of food-rewarded mazes. Microdialysis samples of extra-cellular fluid were collected from the hippocampus and striatum at 5-min increments before, during, and after training. These samples were later analyzed for ACh content using HPLC methods. In Experiment 1, ACh release in both the hippocampus and striatum increased during training on both the place and response tasks. The magnitude of increase of training-related ACh release in the striatum was greater in rats trained on the response task than in rats trained on the place task, while the magnitude of ACh release in the hippocampus was comparable in the two tasks. Experiment 2 tested the possibility that the hippocampus was engaged and participated in learning the response task, as well as the place task, because of the availability of extra-maze cues. Rats were trained on a response version of a maze under either cue-rich or cue-poor conditions. The findings indicate that ACh release in the hippocampus increased similarly under both cue conditions, but declined during training on the cue-poor condition, when spatial processing by the hippocampus would not be suitable for solving the maze. In addition, high baseline levels of ACh release in the hippocampus predicted rapid learning in the cue-rich condition and slow learning in the cue-poor condition. These findings suggest that ACh release in the hippocampus augments response learning when extra-maze cues can be used to solve the maze but impairs response learning when extra-maze cues are not available for use in solving the maze.     

Conceptualizing and measuring personality vulnerability to depression: comment on Coyne and Whiffen (1995)

J. C. Coyne and V. E. Whiffen (1995) reviewed research on personality vulnerability to depression, focusing on S. J. Blatt's (1974, 1990) concepts of dependency and self-criticism and A. T. Beck's (1983) concepts of sociotropy and autonomy. The authors discuss 6 issues raised in that review: (a) the typological or dimensional nature of vulnerability, (b) the theoretical implications of "mixed" vulnerability, (c) the relations of vulnerability to Neuroticism. (d) the potential confounding of vulnerability with concurrent depression, (e) the potential confounding of vulnerability with social context, and (f) the differentiation of dependency from relatedness. The authors conclude that Blatt's and Beck's concepts are continuous, nearly orthogonal dimensions that can be identified and measured independently from Neuroticism, depression, and social context.     

Quality of Life and Autonomy in Emerging Adults with Early-Onset Neuromuscular Disorders

Emerging adulthood is an important period in the development of one's identity and autonomy. The ways in which identity and autonomy are viewed by emerging adults and how they impact quality of life (QoL) in individuals with early-onset neuromuscular conditions is not yet known. This study focused on understanding and exploring relationships between self-perceptions of emerging adulthood, autonomy, and QoL. Five previously validated measures were incorporated into an online survey and distributed to young adults with early-onset neuromuscular conditions and unaffected controls. Topics explored included individuals' views regarding their overall QoL, disease-specific QoL, components of emerging adulthood, and autonomy. We found that a sense of higher disease impact was associated with a lower Overall General QoL. Additionally, perceptions of key autonomy factors "negativity" and "instability" were uniquely associated with Overall General QoL in the case group as compared to controls, whereas "attitudinal autonomy" (attaining the ability to plan and follow through with goals) was important to this age group regardless of health status. The specific factors of emerging adulthood and autonomy that were significantly correlated with Overall General QoL can be used for developing targeted counseling and interventions to improve QoL for individuals and their families.     

Discussing Adolescent Sexual Health in African-American Churches

This study describes the ways in which two African-American churches discuss adolescent sexual health topics. Six focus groups were conducted in two churches in Flint, Michigan, that reported no formal sexual health programming for their congregants. Three themes emerged to highlight the different perspectives about the role of churches in adolescent sexual decision-making and sexual health education: (1) churches as sources of sexual information, (2) churches as complex communities, and (3) recommendations for sexual education in churches. Participant responses suggest that churches can and should serve a resource for sexual health information. Implications for practice and research are discussed.     

Stress perçu et santé physique des doctorants dans les universités françaises

Few studies have focused on PhD students in France despite the fact that this population appears to be particularly vulnerable to stress and often faces precariousness. This research investigated associations between socio-demographic factors, health behaviours, perceived stress and physical health in a wide sample of PhD students (n = 1923) in order to have a better understanding of this population's specificities. Our results indicated that stress is a critical issue among PhD candidates. Predictors of perceived stress were: gender, age, satisfaction with supervision, sleep quality and sports practice. Findings from this study confirm the relevance of the transactional model to investigate students’ health issues and suggest that physical activity and stress management should be encouraged through health promotion programs.     

Fit of Political Skill to the Work Context: A Two‐Study Investigation

A two‐study investigation was designed to examine the role of job type (i.e. fit of political skill to work context) as a contextual moderator of the political skill–job performance relationship. Specifically, it was hypothesised that political skill operates most effectively in enterprising job contexts, and thus is most predictive of job performance in such contexts, but political skill would demonstrate no relationship with job performance in job contexts that did not emphasise interpersonal interaction and effectiveness. In Study 1, enterprising job demands interacted with political skill to affect job performance. That is, political skill positively and significantly predicted job performance in enterprising job contexts, as hypothesised. Study 2 selected one specific job context (i.e. insurance sales) high in enterprising job demands, and hypothesised that political skill would significantly predict objective measures of insurance sales (i.e. sales volume, performance‐based income, performance‐based commission rate, and performance‐based status). The results demonstrated significant predictive effects of political skill (i.e. beyond age, sex, education level, tenure on the job, and experience in sales) on all four measures of sales performance. Contributions and implications of this research, strengths and limitations, and directions for future study are discussed.     

Standards of Care: Potential Implications for the Counseling Profession

The potential implications for development of professionally defined “standards of care” treatment procedures for mental health counseling are presented. The role of xpert witnesses in malpractice cases is examined as one source from which the standards are currently derived. The influence of managed care on the current clinical practices is noted. Finally, the importance of using outcome research as the basis for developing a “best practices” concept of standards of care is discussed. The authors note difficulties and challenges involved in making a commitment to what could be the next major impetus to the mental health movement.     

Economic threat undermines the satisfaction of psychological needs for competence and autonomy

During times of macroeconomic instability, the prospect of personal financial deficiency becomes a pervasive concern. This research examined the psychological consequences of contemplating threatening economic futures. In two experiments, we tested whether economic threat undermined the satisfaction of the basic psychological needs for competence and autonomy. In Experiment 1, Canadian university students primed with an economic threat (compared with a threat‐neutral topic) reported feeling less competent and autonomous. In Experiment 2, American adults primed with an economic threat reported less competence and autonomy compared to both those primed with (a) a noneconomic threat and (b) a threat‐neutral topic. Participants under economic threat also reported lower well‐being compared with threat‐neutral participants. This effect was mediated by self‐perceived competence and autonomy.     

The Power of Language and Labels: “The Mentally Ill” Versus “People With Mental Illnesses”

Undergraduate students (N = 221), adults in a community sample (N = 211), and professional counselors and counselors‐in‐training (N = 269) were given a measure of tolerance. Within each sample, half of the participants were given a version that used the term “the mentally ill” and half were given a version that used the term “people with mental illnesses.” Individuals receiving the version with the term “the mentally ill” had lower levels of tolerance. Professional counselors had the largest differences in tolerance on the basis of language.