Reduced right hemisphere activation in severely abused violent offenders during a working memory task: An fMRI study

This study uses functional magnetic resonance imaging (fMRI) to address two important gaps in our knowledge of brain functioning and violence: (1) What are the brain correlates of adults in the community who have suffered severe physical abuse early in life and who go on to perpetrate serious violence in adulthood? (2) What characterizes those who experience severe physical abuse but who refrain from serious violence? Four groups of participants recruited from the community (controls, severe physical child abuse only, serious violence only, and severely abused, seriously violent offenders) underwent fMRI while performing a visual/verbal working memory task. Violent offenders who had suffered severe child abuse show reduced right hemisphere functioning, particularly in the right temporal cortex. Abused individuals who refrain from serious violence showed relatively lower left, but higher right, activation of the superior temporal gyrus. Abused individuals, irrespective of violence status, showed reduced cortical activation during the working memory task, especially in the left hemisphere. Brain deficits were independent of IQ, history of head injury, task performance, cognitive strategy, and mental activity during the control task. Findings constitute the first fMRI study of brain dysfunction in violent offenders, and indicate that initial right hemisphere dysfunction, when combined with the effects of severe early physical abuse, predisposes to serious violence but that relatively good right hemisphere functioning protects against violence in physically abused children. Aggr. Behav. 27:111–129, 2001. © 2001 Wiley‐Liss, Inc.     

Public approval of suicide: a situational analysis

Using four national surveys conducted in 1977, 1978, 1982, and 1983, this study examined public opinions on suicide in four situations: incurable disease, bankruptcy, family dishonor, and being tired of living. The results indicated that suicide in case of incurable disease was approved by slightly less than 43%, being tired of living by about 13%, and the other two situations by 7%. It was found that respondents with attributes of higher education, lower religiosity, and higher commitment to freedom of expression were more likely to consider suicide as acceptable. Future implications for research suggest not only an assessment of attitudes toward suicide in different situational contexts, but also assessment of individual intentions for the situations considered in this study.     

Memory for information about sex differences

To test the selective recall hypothesis, male and female adolescents listened to a tape recording of 30 “findings” about sex differences. Fifteen of the findings were pro-female and 15 were anti-female. After being given free recall and then cued recall tests, the subjects completed the British version of the attitudes towards women scale. Multiple regression analysis supported the prediction that males, and those with more negative attitudes to wards women, recalled less pro- and more anti-female items, and vice versa. The importance of selective recall to studies of social cognition is discussed.     

Hand Preference in India

The degree of asymmetric handedness was measured by a 22-item hand preference questionnaire in a sample of 442 Indian subjects. Factor analysis of the data for right-handers yielded four item-clusters: Gross activities, skilled activities (general), skilled activities (specific), and activities subject to social pressure. Identical analysis for left-handers yielded three item-clusters: Activities that are executed with difficulty, with ease, and with greater frequency. The degree of asymmetric handedness in right-handers was positively (high) correlated with an index of social pressure against left-hand use, especially for the items, writing and eating. The correlation was negative (moderate) in left-handers, however, who had preferred the right hand for eating purposes.     

Recognition of Facial Expressions of Emotion by Children with Emotional and Behavioral Disorders

Interpreting and responding appropriately to facial expressions of emotion are important aspects of social skills. Some children, adolescents, and adults with various psychological and psychiatric disorders recognize facial expressions less proficiently than their peers in the general population. We wished to determine if such deficits existed in a group of 133 children and adolescents with emotional and behavioral disorders (EBD). The subjects were receiving in-patient psychiatric services for at least one of substance-related disorders, adjustment disorders, anxiety disorders, mood disorders or disruptive behavior disorders. After being read stories describing various emotional reactions, all subjects were tested for their ability to recognize the 6 basic facial expressions of emotion depicted in Ekman and Friesen's (1976) normed photographs. Overall, they performed well on this task at levels comparable to those occurring in the general population. Accuracy increased with age, irrespective of gender, ethnicity, or clinical diagnosis. After adjusting for age effects, the subjects diagnosed with either adjustment disorders, mood disorders, or disruptive behavior disorders were significantly more accurate at identifying anger than those without those diagnoses. In addition, subjects with mood disorders identified sadness significantly more accurately than those without this diagnosis, although the effect was greatest with younger children.     

The readability of educational materials written for parents of children with attention-deficit hyperactivity disorder

Health-care providers are relying increasingly on printed materials to educate patients and their families about varous aspects of their health or mental health conditions. For the target audience to be able to read and understand health brochures, they should be written at or about the 8th-grade level and incorporate variables that facilitate comprehension. The purpose of this study was to analyze brochures related to Attention-Deficit Hyperactivity Disorder to determine (a) if they were written at a level appropriate for the target audience, and (b) the extent to which they incorporated variables identified in the research literature as facilitating comprehension. The results showed that the brochures were written at a reading level beyond that of the target audience. Further, although the brochures incorporated a large number of variables which facilitate comprehension, many were not used to the extent necessary to ensure that readers would be able to understand the brochures. These results clearly indicated the need for health care materials to be written in such a way that they can be read and understood by the target audience.