Research on risk factors for schizophrenia is reviewed with emphasis on children of schizophrenic parents. Four areas of biobehavioral functioning that have been examined in high-risk research are discussed. Three of these are considered compatible with hypothesis neurointegrative defect underlying schizophrenic-proneness. (Author/CL)

The matrix of pre- and perinatal biological and sociocultural correlates are reviewed in relation to infants who are subsequently identified as gifted. (Author/CL)

Four features of early adolescent friendship have received the greatest attention in the literature: intimacy of conversations, friends' responsiveness to each other's needs and desires, the degree of similarity or complementarity between friends, and the stability of friendships over time. Each of these features and its potential effect on the…

This review notes that more behavioral recovery is often seen following damage to the nervous system than should be possible from the limited capability of the nervous system for regeneration and reorganization. The review offers a framework for reconciling the effectiveness of early childhood intervention strategies and the conclusions of…

Reviews data on behavior and attitudes towards the aged in preliterate societies, indicating that the aged maintain meaningful roles and are not subject to the pervasive discrimination and negative stereotyping existent in America. Discusses theories providing a perspective on and understanding of biologic and psychosocial causes of ageism.…

Presents the complex factors, i.e., social determinants, drug types, personality characteristics, reasons for drug use and misuse, which characterize the drug experience. Defines awareness of these characteristics as a developmental approach to treatment and prevention of addiction. (RC)

Provides an overview of research on the biobehavioral antecedents of coronary heart disease, including stressful occupational settings characterized by high demands and little control over the job, and the Type A pattern, particularly hostility and mode of anger expression (anger-in). Discusses research on physiologic responsiveness (reactivity)…

Health educators may be expecting the public to accept too much personal responsibility for disease. Genetic, environmental, and other factors may be as important as health-promoting behavior in avoiding disease. If health educators overstate the role of personal responsibility for health, they may lose credibility with the public. (PP)

The biological and the cultural aspects of human play are inextricably linked and mutually influence each other. (LH)

This paper on the behavioral manifestations of child sexual abuse first reviews previous research concerning child variables, parent/family variables, sexual abuse in combination with other maltreatment, and physiological outcomes. Criteria for future research are offered and specific research needs in the areas of developmental progression,…

Various definitions of gender identity have ranged from recognition of one's biological sex to an individual's sense of masculinity or femininity. For the purpose of this paper, which examines some of the theoretical approaches to the subject, gender identity will be defined as "the degree to which individuals are 'aware' of and accept their…

A basic tenet of this paper is that, from the time of the ancient Greeks, Western thought has distinguished between rational processes unique to humans and the processes governing animal behavior. A model of motivation, emotion, and the cognitive/physiological interaction that can be applied to both animals and humans is presented. The special…

Development in general, and sex-role behavior in particular, is influenced by both biological and environmental factors. However, the coalescence of these factors around the child's growing social cognitive abilities is the critical factor in the development of sex role behavior. (Author/EB)

Reviews the state of knowledge on adolescent sexual behavior in the following areas: (1) onset of sexual behavior as a function of cohort, gender, and ethnic differences; (2) biological, social, and cognitive processes underlying such behavior; (3) demographic trends in the use of contraceptives; (4) research problems; and (5) successful programs.…