Psychologists' attitudes toward aids

Abstract

Practicing psychologists in all areas of the country will see an increasing number of persons at risk for AIDS, or with AIDS-related illnesses. Previous research has shown that AIDS elicits negative reactions from the general public and from certain health care professionals. In the current study, a national sample of randomly selected practicing psychologists completed attitude measures after reading vignettes that described a male patient with either AIDS or leukemia who was either homosexual or heterosexual. Respondents evaluated the AIDS patient more negatively and reported less willingness to interact with him in a professional role or in casual social situations. It is important to develop training and continuing education programs to prepare psychologists to deal with persons affected by AIDS.     

Beyond emotional benefits: Physical activity and sedentary behaviour affect psychosocial resources through emotions

Physical activity is known to improve emotional experiences, and positive emotions have been shown to lead to important life outcomes, including the development of psychosocial resources. In contrast, time spent sedentary may negatively impact emotional experiences and, consequently, erode psychosocial resources. Two studies tested whether activity independently influenced emotions and psychosocial resources, and whether activity indirectly influenced psychosocial resources through emotional experiences. Using cross-sectional (Study 1a) and longitudinal (Study 1b) methods, we found that time spent physically active independently predicted emotions and psychosocial resources. Mediation analyses suggested that emotions may account for the relation between activity and psychosocial resources. The improved emotional experiences associated with physical activity may help individuals build psychosocial resources known to improve mental health. Study 1a provided first indicators to suggest that, in contrast, sedentary behaviour may reduce positive emotions, which could in turn lead to decrements in psychosocial resources.     

Relations Between Contextual Performance,Personality, and Occupational Advancement

Two studies investigated relations between supervisors' evaluations of contextual performance and personality characteristics in jobs where opportunities for advance- ment were either absent or present. The first study examined performance in entry- level jobs where advancement, in general, was precluded; employees (N = 214) completed the Hogan Personality Inventory (HPI) as applicants and subsequently were rated by their supervisors for contextual performance. Results indicated that conscientiousness-measured by HPI Prudence scores-was significantly related to ratings of Work Dedication and Interpersonal Facilitation, which are dimensions of contextual performance. The results were corroborated in an independent sample. In the second study, employees (N = 288) in jobs with opportunities for advancement completed the HPI and their supervisors provided ratings for contextual performance. Results indicated that ambitiodsurgency-measured by HPI Ambition scores-pre- dicted contextual performance. These results also were confirmed in a second sample. Relations between personality and contextual performance are explained by the motives of cooperation-getting along-and status-getting ahead.     

Book reviews

Livesey, P. J. (1986). Learning and emotion: A biological synthesis. Volume 1: Evolutionary processes. Hillsdale, N.J.: Lawrence Erlbaum Associates, Inc. Pp. 312. ISBN 0-89859-552-5. £17.95

Fletcher, D. J. C. & Michener, C. D. (Eds.). Kin recognition in animals. Chichester: John Wiley & Sons. 1987. Pp. 465. ISBN 0-471-91199-2. £37.50.

Horn, G. Memory, imprinting, and the brain: An inquiry into mechanisms. Oxford: Oxford University Press. 1985. Pp. xiv + 315. Hardback, ISBN 0-19-8521 57-X, £25 ($45). Paperpack, 0-19-8521 56-1, £15 ($24.95).     

Personality factors related to quantitative estimation skill: confirmation and extension

The relationships of two measures of quantitative estimation skill, computational estimation and numerosity estimation, were examined with the 16 PF Global Factors corresponding to the Big Five personality dimensions in a sample of 80 college students. Correlations of Computational Estimation with the 16 PF scores confirmed findings from a previous study which used the NEO-Five Factor Inventory as a measure of the Big Five, specifically showing that Computational Estimation correlated significantly with the 16 PF's Independence factor. Numerosity Estimation did not correlate significantly with any of the 16 PF Global Factors or with any of the ability measures (Computational Estimation, SAT Verbal, SAT Mathematics, and self-rated mathematics ability) used in the study.     

Methamphetamine abuse and impairment of social functioning: a review of the underlying neurophysiological causes and behavioral implications

The highly addictive drug methamphetamine has been associated with impairments in social cognitions as evidenced by changes in users' behaviors. Physiological changes in brain structure and functioning, particularly in the frontal lobe, have also been identified. The authors propose a biopsychosocial approach to understanding the effects of methamphetamine addiction by relating the physiological effects of the drug to the behaviors and social cognitions of its users, through the application of the theory of mind paradigm. Although onset of methamphetamine use has been linked to the desire for socialization, chronic use has been associated with an increase in depression, aggressiveness, and social isolation, behaviors that also implicate involvement of the frontal lobe. The reviewed literature provides strong circumstantial evidence that social-cognitive functioning is significantly impacted by methamphetamine use and that the social isolation, depression, and aggressiveness associated with chronic use is due to more than just the social withdrawal associated with addiction. Treatment considerations for methamphetamine must therefore consider the role of social cognition, and pharmacological responses must address the documented impact of the drug on frontal lobe functioning.     

Individuals with Autism can Categorize Facial Expressions

The ability of high-functioning individuals with autism to perceive facial expressions categorically was studied using eight facial expression continua created via morphing software. Participants completed a delayed matching task and an identification task. Like undergraduate male participants (N = 12), performance on the identification task for participants with autism (N = 15) was predicted by performance on the delayed matching task for the angry-afraid, happy-sad, and happy-surprised continua. This result indicates a clear category boundary and suggests that individuals with autism do perceive at least some facial expressions categorically. As this result is inconsistent with findings from other studies of categorical perception in individuals with autism, possible explanations for these findings are discussed.