Psychophysiological mediators of caregiver stress and differential cognitive decline

The authors examined relationships between chronic stress and cognitive decline and whether such relationships were mediated by psychophysiological factors. Ninety-six caregivers of spouses with Alzheimer's disease (AD) were compared with 95 similar noncaregiver spouses. All were free of diabetes. Although the groups started similarly, over 2 years caregivers declined by a small but significant amount (1 raw score point and 4 percentile points, each p<.05) on Shipley Vocabulary. In contrast, noncaregivers did not change. Higher hostile attribution (beta=-.09; p<.05) and metabolic risk (beta=-.10; p<.05) in caregivers mediated the cognitive decline. This is the first study of cognitive decline and mediators in caregivers. This work has implications for caregiver and care-recipient health and for research on cognition, psychophysiology, diabetes, and AD.     

Locus of Control for Consumer Outcomes: Predicting Consumer Behavior1

In order to predict which persons approach the task of shopping strategically, we constructed a measure of locus of control focused specifically on consumer behaviors and outcomes. Psychometric evaluations of the 14-item Consumer Locus of Control scale indicated that it was a reliable instrument whose characteristics were replicated in two separate samples. The scale was used to predict shopping behavior ranging from impulsive to strategic. The measure of consumer locus of control was significantly related to consumer behavior, whereas measures of economic and generalized locus of control proved to be unrelated to shopping effort, planning, and product knowledge. The more internal their consumer control beliefs, the more likely were subjects to be planful and purposive in the act of shopping.     

Towards a psychosocial mediator model of hostility and CHD

Abstract

How might hostility contribute to the development of CHD? One possible explanation, labelled “psychosocial vulnerability”, is that hostile individuals inhabit a more taxing interpersonal world, and that increased stress, in turn, causes CHD. However, previous research testing this proposition has suffered from a measurement confound by employing self-reports of stress, social support, and hostility. One hundred and twelve subjects participated in the current study and completed the Cook-Medley Hostility scale. Then, each subject's closest friend was asked to estimate for the past year: (1) how many stressors had been encountered by the subject; (2) how easily the subject was upset by a stressor; (3) how many emotional reactions the subject disclosed after a stressor; and (4) how much social support was available to the subject. Results suggested that hostile men and women may both be phychosocially vulnerable, but they are so at different stages of the stressor-distress process. There was no relation between hostility and observed stressor frequency for either men or women, however, hostility in men was found to be related to increased distress in reaction to stressors and in women was related to decreased disclosure about these stressful events. Importantly, hostility in both men and women was related to decreased levels of observed social support, as compared to their non-hostile peers.     

Facets of personality and the phenomenology of autobiographical memory

The relationship between individual differences in autobiographical memory and personality was examined by having 118 undergraduates complete the NEO Personality Inventory after rating 15 word‐cued autobiographical memories on 20 scales. The Openness to Feelings facet (O3) correlated with measures of belief in the accuracy of memories, recollection, sensory imagery and emotion. Four other facets had correlations with belief (A3—Altruism, E1—Warmth, E4—Activity, E6—Positive Emotions). These facets also deal with emotional components of personality. In multiple regressions, measures of belief and measures of recollection were predicted by different variables, and for measures of belief, the O3 facet increased the variance accounted for beyond that of just the cognitive variables. Our results are consistent with and extend studies of the effects of depression and emotional suppression on autobiographical memory. Copyright © 2004 John Wiley & Sons, Ltd.     

A SUPERVISION PROGRAM FOR INCREASING FUNCTIONAL ACTIVITIES FOR SEVERELY HANDICAPPED STUDENTS IN A RESIDENTIAL SETTING

This study was designed to increase the amount of time severely handicapped students living in a residential facility engaged in age-appropriate and functional activities. After a brief in-service training, a program involving instructions to supervisors and staff feedback was implemented in a multiple-baseline design across settings. Results showed that after the supervision program was implemented, the students' participation in activities increased. Further, these increases maintained when feedback was reduced from an average of 3 days a week during treatment, to once a month for a 5-month period.