Laterality differences in sensitivity to line orientation as a function of adaptation duration

Since available evidence indicates that the two cerebral hemispheres are differentially sensitive to different types of stimulus information, and that they also utilize different strategies in processing information, is it possible that the two hemispheres are differentially sensitive to adaptation? Three groups of four subjects each were adapted to black and white gratings using three adapting durations: 500, 1,000, and 5,000 msec. Immediately following adaptation, a test grating was presented in either the left or right visual field. The task of the subject was to determine whether the lines of the adapting and test gratings had the same orientation or not. Analysis showed that in the 5,000-msec and 1,000-msec conditions, more errors occurred with left visual field presentations, responses to left visual field presentations took longer, and a bias-free measure showed that subjects were more sensitive to right visual field presentations. For the 500-msec group, there were no apparent differences between left and right visual fields presentations. The results indicate differential effects of adaptation on the two hemispheres, suggesting sensitivity differences between the two halves of the brain.     

Long-term effects of lifestyle changes on well-being and cardiac variables among coronary heart disease patients

OBJECTIVE: To focus on psychological well-being in the Lifestyle Heart Trial (LHT), an intensive lifestyle intervention including diet, exercise, stress management, and group support that previously demonstrated maintenance of comprehensive lifestyle changes and reversal of coronary artery stenosis at 1 and 5 years. DESIGN AND MAIN OUTCOME MEASURES: The LHT was a randomized controlled trial using an invitational design. The authors compared psychological distress, anger, hostility, and perceived social support by group (intervention group, n = 28; control group, n = 20) and time (baseline, 1 year, 5 years) and examined the relationships of lifestyle changes to cardiac variables. RESULTS: Reductions in psychological distress and hostility in the experimental group (compared with controls) were observed after 1 year (p < .05). By 5 years, improvements in hostility tended to be maintained relative to the control group, but reductions in psychological distress were reported only by experimental patients with very high 5-year program adherence. Improvements in diet were related to weight reduction and decreases in percent diameter stenosis, and improvements in stress management were related to decreases in percent diameter stenosis at both follow-ups (all p < .05). CONCLUSION: These findings illustrate the importance of targeting multiple health behaviors in secondary prevention of coronary heart disease.     

(Lsuno) the Soviet folktale as an ideological strategy for survival in international business relations

Part of Soviet education is the use of the folktale with a message. This message includes forming attitudes toward foreigners. Among the foreigners so depicted are capitalists and businessmen. For fruitful negotiations with the Soviets, it will pay to know how they view their Western counterparts.     

Comparison of polygraph data obtained from individuals involved in mock crimes and actual criminal investigations

In a preliminary attempt to determine the generalizability of data from laboratory mock-crime studies, the authors examined the similarities and differences among the cardiovascular, electrodermal, and respiration responses of deceptive and nondeceptive individuals elicited to crime-relevant and crime-irrelevant questions. Participants in the laboratory group were randomly assigned to nondeceptive (n = 28) or deceptive (n = 27) treatment groups, and a mock-crime scenario was used. The field participants were confirmed nondeceptive (n = 28) or deceptive (n = 39) criminal suspects who underwent polygraph examinations between 1993 and 1997. The results indicated that there were salient differences between field and similarly obtained laboratory polygraph response measures. However, accuracy of laboratory participants' classifications using logistic regression analysis was not significantly different from field participants' classification accuracy.     

An Exploratory Study of Neglect and Emotional Abuse in Adolescents: Classifications of Caregiver Risk Factors

Recent research has advanced exploration of developmental stage and age-related distinctions in understanding the perpetration of child maltreatment. Using longitudinal data from the National Survey of Child and Adolescent Well-being I (NSCAW-I), this exploratory study investigated heterogeneity in caregiver risks in cases of both neglect and emotional abuse of adolescents (N = 511). Using MPlus software, a person-centered data analytic strategy–latent class analysis was performed to identify distinct classes of caregiver risk factors that were associated with the reports of maltreatment among adolescents. Subsequently exploring the distinct characteristics of the classes, we examined the related demographic characteristics, child welfare system variables (e.g., type of placement status; change in placement type between waves), and youth factors such as the presence of clinical range problem behaviors (Child Behavior Checklist). Results demonstrate four distinct classes of caregiver risk factors, with a nearly even split between those who have an absence of risk factors and those who have a whole host of risk determinants. Differences between the classes regarding the duration of time in out-of-home placements between Wave 1 and Wave 3 also emerged significant.     

When a Non-resident Worker is a Non-resident Parent: Investigating the Family Impact of Fly-In,Fly-Out Work Practices in Australia

Non-resident work practices, which involve prolonged separations from family, long-distance commuting between home and remote work sites and long work hours across compressed rosters, are now commonplace in Australia. This study examined the impact of these work arrangements, often termed Fly-In/Fly-Out (FIFO), on children and families, and to identify family-related and employment-related factors that influence child and family outcomes. Anonymous online surveys containing measures of family and couple relationship quality, child behavioral and emotional adjustment, parenting and personal adjustment were completed by 232 partners of FIFO workers, 46 FIFO workers, and a comparison group of community parents (N = 294 mothers, N = 36 fathers). There were no differences between FIFO partners and community parents on family or couple relationship quality, parenting competence and child behavioral or emotional difficulties. FIFO partners reported higher levels of personal emotional problems and greater usage of harsh discipline practices than community mothers, while FIFO workers reported greater work to family conflict and alcohol use than community fathers. Regression analyses on the FIFO partners sample indicated that child and family functioning were best predicted by family factors, including harsh parenting and parental emotional adjustment. Implications of the findings for the design and provision of family-based support for FIFO families are discussed.     

Still another confounded face in the crowd

Experiments using schematic faces developed by Öhman (Öhman, Lundqvist, &; Esteves, 2001) seem to document an anger-superiority effect, although we have come to question these experiments. Our work shows that the low-level features of these schematic faces interact with the face’s surround to produce effects that have been attributed to facial affect. Using relatively neutral faces that preserved the feature and surround spatial relationships of angry and happy schematic faces, we produced reaction times (RTs) that were indistinguishable from those found with angry and happy faces. We also found that the target face’s position within the crowd determined the magnitude of the advantage for angry faces as well as for relatively affect-neutral faces. Removing the facial surround reduces the advantage for angry faces, largely by improving performance on happy faces. There was an apparent small advantage for angry features without a surround. öhman faces avoid the problems associated with modified grayscale faces only to introduce an equally troubling confound.