Impact of Exposure to Community Violence on Anxiety: A Longitudinal Study of Family Social Support as a Protective Factor for Urban Children

In a longitudinal study, we examined the relationship between exposure to community violence and anxiety, and the extent to which family social support moderated this relationship within a predominantly African American sample of 385 children in an urban public school system. Children reported notably lower anxiety levels compared to normative data for African American children. A high percentage reported witnessing a variety of violent acts. Cross-sectional results indicated that among girls exposure to violence was significantly correlated with total, physiological, and concentration anxiety. Among boys violence exposure was not associated with anxiety. Hierarchical regression analyses indicated that after controlling for gender, exposure to violence at Time 1 did not significantly predict changes in anxiety. A significant interaction was found for gender and exposure to violence on concentration anxiety; girls who reported higher initial violence exposure reported greater increases in subsequent concentration anxiety than boys. Whereas findings from our study did not support a moderating relationship of family social support on children's exposure to violence and anxiety, a strong negative relationship was found between anxiety and family support. Among children with initially low worry anxiety, those with low family social support showed greater increases in subsequent worry anxiety.     

Developmental dyslexia and animal studies: at the interface between cognition and neurology

Recent findings in autopsy studies, neuroimaging, and neurophysiology indicate that dyslexia is accompanied by fundamental changes in brain anatomy and physiology, involving several anatomical and physiological stages in the processing stream, which can be attributed to anomalous prenatal and immediately postnatal brain development. Epidemiological evidence in dyslexic families led to the discovery of animal models with immune disease, comparable anatomical changes and learning disorders, which have added needed detail about mechanisms of injury and plasticity to indicate that substantial changes in neural networks concerned with perception and cognition are present. It is suggested that the disorder of language, which is the cardinal finding in dyslexic subjects, results from early perceptual anomalies that interfere with the establishment of normal cognitive-linguistic structures, coupled with primarily disordered cognitive processing associated with developmental anomalies of cortical structure and brain asymmetry. This notion is supported by electrophysiological data and by findings of anatomical involvement in subcortical structures close to the input as well as cortical structures involved in language and other cognitive functions. It is not possible at present to determine where the initial insult lies, whether near the input or in high-order cortex, or at both sites simultaneously.     

Rational emotive behaviour therapy in the treatment of stress

Rational emotive behaviour therapists view stress-related disorders as originating in irrational beliefs (iB's), philosophies and attitudes, as opposed to the stressor. People who suffer from stress differ from people who suffer from emotional or neurotic problems mainly in that the stressed people have iB's about specific, short-term or more readily identifiable events, as opposed to the more mundane and diffuse difficulties suffered by the neurotic individual. Both the conscious and unconscious antecedents to stress difficulties and how they relate to distorted thinking and psychophysiological disorders are discussed from an information-processing perspective. Rational emotive behaviour treatments for stress-related disorders are detailed and explained.     

Theological ethics, moral philosophy, and public moral discourse.

The advent and growth of bioethics in the United States in the late 1960s and early 1970s precipitated an era of public moral discourse, that is, the deliberate attempt to analyze and formulate moral argument for use in public policy. The language for rational discussion of moral matters evolved from the parent disciplines of moral philosophy and theological ethics, as well as from the idioms of a secular, pluralistic world that was searching for policy answers to difficult bioethical questions. This article explores the basis and content of the unique contributions of both theological and philosophical ethics to the development of public moral discourse.     

FAMILY AND COMMUNALLY RAISED (KIBBUTZ) CHILDREN 20 YEARS LATER: BIOGRAPHICAL DATA*

Two groups of individuals, one made up of persons raised in the kibbutz communal system, and the other of persons raised in traditional families, who had been first studied in 1955 as part of a comparative research project, were studied again twenty years later. The follow-up study included 146 individuals, amounting to 85% of the original groups, whose average age in 1975 was around 30. The two groups were compared on several aspects of psychosocial functioning, such as place of residence, work, marital status, military service and psychosomatic symptoms. The similarities and the differences between the two groups are discussed in the context of the two respective child rearing systems.     

COMPARISON OF ESTABLISHED AND INNOVATIVE WEIGHT-REDUCTION TREATMENT PROCEDURES1

A central component of a commonly used weight-loss procedure developed by Stuart (1967), which emphasizes situational engineering (SE), was compared to eating behavior control (EBC), a treatment employing reinforcement of changes in eating habits. A third treatment encouraged development of individuals' own applications of a model of self-control and attempted to provide effective feedback regarding progress toward weight-loss goals. This self-initiated treatment (SI) was designed to be less directive than many behavioral treatment packages and to be more realistic about the expectations of subjects and the actual eating habits of overweight and normalweight people. Following baseline, treatment lasted six weeks and followup lasted 16 weeks. While all treatments produced weight losses, EBC surpassed SE during treatment. SI losses during treatment did not differ from SE or EBC, but SI was the only group that lost weight throughout followup, indicating the possible utility of more subtle, less directive interventions than those that have often been associated with behavioral approaches. The results of SE question the applicability to clinical procedures of the external cue hypersensitivity theory of obesity (Schachter and Rodin, 1974), to which SE is closely related.     

Ending social encouters

Certain classes of verbal behavior—content summary statements (S_c); affective summary statements (S_a); continuity (C), justification (J), and well-wishing (W) statements; and statements of positive affect (P)—were hypothesized to be constituents of interpersonal endings. These statements are shown to increase during the terminal phase of a social encounter as a function of whether the conversation is between friends or strangers and whether it is structured or unstructured. A hypothesis concerning the sequence in which these five classes of statements will occur during the ending of an interaction, namely, [S_c] → [J] → [_Sa^P] → [C] → [W], is tested and confirmed.     

Characteristic individual reactions to preferred and unpreferred environments1

Intercorrelations among measures of various reactions to a large number of situations were factor analyzed and yielded five factors and corresponding measures. Three of the factors are positively intercorrelated and constitute various aspects of approach-avoidance to a situation: approach to the setting itself; approach to tasks in the setting, or desire to work; and approach to persons in the setting, or desire to affiliate. The positive correlation of a fourth, desire to drink alcohol factor with the approach factors suggests that, at least for our sample of average (nonalcoholic) subjects, drinking is more likely to occur in more preferred places. In the context of earlier findings on alcohol use, these results show the decision to drink and the specific choice of a place to drink to be similarly motivated: the consumption of moderate doses of alcohol yields a more preferred emotional state, as does the choice of a preferred setting in which to drink. Additional results relating to characteristic individual reactions showed that Stimulus Screening is useful for assessing differences in individual reactions to unpreferred situations (nonscreeners approach, work, and affiliate less than screeners in such settings). Further, a new questionnaire measure of Arousal Seeking Tendency reported in this study is useful for assessing differences in individual reactions to preferred situations (high-arousal seekers approach, work, and affiliate more than low-arousal seekers in preferred settings).     

Auditory streaming: Competition among alternative organizations

It has been suggested that the ON and OFF components of the auditory evoked potential (AEP) may be mediated by independent physiological mechanisms and that the response to a brief tone consists of overlapping ON and OFF responses. Two experiments were performed to evaluate these proposals. First, AEPs were recorded to tonebursts of various durations presented at a fixed rate. As the tonebursts were made longer, they evoked smaller ON responses and larger OFF responses, particularly when either response followed the other by less than 5 sec. This indicates that ON and OFF responses are not physiologically independent. Second, the AEP to a 25-msec tone was compared with the ON response to a 2,000-msec tone. At an interstimulus interval of 4 sec, the difference wave formed by subtracting the latter AEP from the former contained clear N₁ (ca. 100 msec) and P₂ (ca. 180 msec) components, which have been interpreted as an OFF response by some authors. These components in the difference wave were greatly reduced or even inverted at 10-sec interstimulus intervals, however, where interactions between ON and OFF responses to successive stimuli were minimized. This result indicates that any residual OFF response in the AEP to a brief tone is very small in amplitude, if present at all.