Selective reminding procedure in depression and dementia

Patients with mild dementia of the Alzheimer's type (DAT), patients with major depression, and normal elderly control subjects were administered a verbal learning task using the selective reminding procedure. Depressed patients were impaired on total recall and the proportion of items retained from one trial to the next without reminding and did not benefit from imagery in retaining items over consecutive trials. The DAT patients were impaired on all measures derived from the test, including storage and recognition memory. With the exception of the ability to benefit from imagery, all of the measures distinguished depressed and mild DAT patients. These findings are consistent with deficient encoding in DAT and performance deficits as a function of effortful cognitive processing in depression.     

Gross overactivity: A study by direct observation

A group of children who were rated as grossly overactive by a clinician was compared with a matched control group on various measurements of their behavior in a clinical interview situation and in a psychological test situation. An observational schedule was developed to discern those behaviors related to the concept of overactivity. These behaviors were operationally defined to enable reliable replication. The experimental group showed an excess in quantity of mechanically recorded movement as well as an increase in a cluster of behaviors including distractibility and disinhibition. Situational effects on those symptoms were noted. The symptoms were best observed in a semistructured clinical interview situation.This project was carried out while S. L. Luk was a research worker at the Institute of Psychiatry, London, supported by the University of Hong Kong. The authors express sincere thanks to Dr. S. Sandberg for her help in the reliability study, to Dr. J. Bacon-Soong for his statistical advice, and to Miss Ivy Wong for secretarial help.The coding scheme is available from the author.     

Barbiturates and Human Physical Aggression

The effects of barbiturates on aggressive behavior were investigated in two studies. In both studies, subjects were given the opportunity to administer electric shocks to an opponent within the context of a competitive reaction time task. In Study 1, 30 subjects received increasing provocation from an opponent following their ingestion of one of three doses of secobarbital. Aggressive behavior was not found to increase as a function of drug dosage. In Study 2, 30 subjects ingested a placebo or one of two doses of pentobarbital. Once again, the barbiturate did not influence aggressive responding. The findings suggest that barbiturates, in moderate, clinically appropriate doses do not facilitate aggressive responding.     

Perceived Control and Psychological Adjustment in Gay Men With AIDS1

The relationship of control beliefs to psychological adjustment was investigated in a sample of 24 gay men diagnosed with AIDS, participants in the University of California, Los Angeles site of the Multicenter AIDS Cohort Study (MACS). Distinctions between generalized contingency beliefs and specific competence beliefs and between personal and vicarious control beliefs were included in the questionnaire and interview measures administered. The results support these distinctions and indicate that beliefs in personal control over day-to-day symptoms and over course of illness were positively related to adjustment, whereas beliefs in control by others over course of illness and over medical care and treatment were negatively related to adjustment. These relationships appeared to be strongest for men who reported poorer health. These associations were not accounted for by locus of control beliefs, negative affectivity, or time since diagnosis with AIDS.     

Storytelling and Coping With Stressful Events1

Three studies explored the coping benefits and limitations of stories people hear about others undergoing similar stressful events. In Study One, cancer patients reported that positive stories about other patients were preferable to and more helpful than negative stories, yet negative stories were more commonly told. Study Two manipulated the valence and source of stories told to college students facing midterm exams. Stories with positive endings and those relayed by expert sources were regarded more positively than negative stories and those told by nonexperts. Study Three manipulated the valence and informativeness of stories in a similar college sample. Positive and informative stories were rated more favorably, although these effects were independent of each other. Implications for social comparison and social support are discussed.     

Retention and generalization of spelling words acquired using a peer-mediated instructional procedure by children with mild handicapping conditions

A peer-mediated instructional procedure termed Classwide Peer Tutoring (CWPT) has been shown to increase the rates and accuracy of student responses to academic tasks and to improve student performance on weekly spelling tests. In addition to replicating previous research, the present investigation evaluated the retention and generalization of words learned using CWPT. Students classified as mildly handicapped participated in daily practice of 10 spelling words using CWPT for 10 weeks. Short- and long-term retention of words practiced was assessed. Results indicated that the students average post-test score was over 84% correct on weekly tests, replicating previous results. When included in a dictation task the following week, 76.2% of previously tutored words were correctly spelled. Short- and longer-term retention measured on posttests was 72% and 69% correct, respectively. Modest improvements in students sight recognition of words practiced during CWPT were obtained. Student failure to learn particular words was attributable to fewer opportunities to practice these words. Further, students reported positive evaluation of CWPT and perceived positive social and self esteem outcomes.     

Influence of regular aerobic exercise on psychological health: a randomized, controlled trial of healthy middle-aged adults

Although a variety of psychological benefits have been attributed to regular exercise, few experimentally controlled studies of healthy individuals currently exist. One hundred twenty healthy, sedentary, middle-aged men and women were randomly assigned to either a 6-month home-based aerobic exercise training program or to an assessment-only control condition. Adherence across the 6-month period was found by both self-report and heart rate microprocessor methods to exceed 75% in both sexes. To assess changes in a variety of psychological variables over time, a 14-item Likert rating scale was completed and returned on a biweekly basis throughout the 6-month period. Slope analyses conducted on the 11 items attaining acceptable test-retest reliability coefficients showed significant between-groups differences on the 3 items most closely associated with the actual physical changes that occurred with exercise (all ps less than .004). Implications in relation to repeated measurement of psychological changes in nonclinical populations and the determination of the relevant population-, activity-, and program-specific parameters involved are discussed.