Issues in studying pubertal events are examined, including whether puberty is best characterized as a social construction or a physical event, whether early adolescence is a transitional or distinct life period, life events associated with puberty, boundaries of early adolescence, and possible models for studying pubertal change. (Author/BW)

Discusses normative developmental changes in cardiovascular and electrodermal activity and describes the dynamic balance between branches of the autonomic nervous system. Issues for further developmental study are identified, and problems and limitations in the psychophysiological study of children are explored. (Author/RH)

The issue of whether or not early adolescence is a transitional or stable period of development may be dependent on our ability to describe ways in which early adolescents are quantitatively and qualitatively different from when they were children and how these early adolescent characteristics are forerunners to the more elaborate constructs of…

The first of a series of articles on the human brain focuses on the cyclic nature of brain development. Educational and social issues evolving from current discoveries about the brain are also discussed. (CJ)

Examines the effects and interactions of gender, pubertal status, and body weight on the self-concept of young adolescent Australian students. The mean self-concept score was significantly related to students' standard body weight, and there was an interaction between gender and puberty, with postpubertal males having the highest and…

A review of the literature of early adolescence was conducted to provide background information for instructional designers and scriptwriters from the Skills Essential to Learning Project, which develops television/film series and related print materials for different grade levels to enhance the teaching of thinking skills in the context of major…

A review of the literature of middle childhood was conducted to provide background information for instructional designers and scriptwriters from the Skills Essential to Learning Project, which develops television/film series and related print materials for different grade levels to enhance the teaching of thinking skills in the context of major…

The developmental pattern of concurrent synaptogenesis in rhesus monkeys is consistent with a straightforward model of relations between brain and cognitive development. Concurrent synaptogenesis is hypothesized to lay the primary cortical foundation for a series of developmental levels in middle infancy that have been empirically documented in…

Reviews early theoretical and research literature on handedness and places it within the larger context of the nature-nurture controversy. Discussion focuses on Baldwin's study of the development of hand preference in infants in relation to the recapitulation theory, mental development ("dynamogenesis"), and speech development.…

Serial data for 268 normal boys and girls were obtained and used to calculate predicted adult statures without using skeletal age. The data can be used to measure physical maturity in 5- to 15-year-old boys and 3- to 13-year-old girls without invasion of privacy or radiological techniques. (Author/PP)

Reviews studies related to physical exercise with people with severe and profound developmental disabilities and comments on the main findings and on the practicality and acceptability of physical exercise. The use of technical instruments combined with reinforcing events to ensure mild physical exercise is discussed. (Author/CR)

Preschool education is extremely limited in Turkey, suggesting an absence of public recognition of its importance and a lack of state support. In the "VI. Five Years Development Plan," it was exposed that the target in preschool education could not be reached. Especially, regional differences played an important role. According to…

A literature review revealed an absence of well-controlled studies concerning the prevention of sports injuries in children. A checklist outlines some causes of the overuse syndrome, including (1) training errors; (2) the nature of playing surfaces; (3) muscle imbalance; (4) anatomic malalignments; (5) construction of shoes; and (6) various…

Reviews significant recent research and information related to the beginning period of human life, and specifically discusses the developing fetus and infant, and the surrounding environment in which the infant is born and reared. Suggestions for prevention of mental-health problems are offered. (Author/DB)

Presents an historical perspective of the public view of marijuana and examines current empirical research concerning the consequences of marijuana use on the human fetus. Included are 1979 university survey results which explore respondents' knowledge about the effects of marijuana and the relationship this has to the mass media. (Author)