A brief review of the findings of the Surgeon General's report, Television and Growing Up: The Impact of Televised Violence," together with comments on the origins of the committee, its composition, and dissenting interpretations of the data. (AL)

Discusses the relationship of science to technology and of both to social problems. Considers nature of scientific values and criteria for setting up priorities in science. Proposes interdisciplinary approaches to technological and social problems. (EB)

Describes an experiment in which a subject spent more than 230 hours of practice in a laboratory and was able to increase his memory span from 7 to 79 digits. The results suggest that practice with an appropriate mnemonic system can increase memory performance. (Author/SA)

Describes the subdivisions of the human peri-Sylvian language cortex which were determined by stimulation mapping during craniotomies of four adult patients. (SA)

Presented is experimental evidence that humans develop strong preferences for objects that become familiar through repeated exposure, even when the exposures are so degraded that they cannot be discriminated as stimuli previously seen. Implications are made regarding other studies where affective discriminations are made with very little stimulus…

Data are presented from families of monozygotic twin pairs which give evidence of genetic variance on the Block Design Test, a nonverbal measure of intelligence. Analyses of genetic and environmental effects on behavior are possible with this kind of information. (SA)

Discusses the conceptual roots of computer-mediated collaboration in real-time networks and the software environments that currently support these networks. Examines the informal and formal electronic-mail networks in the United Kingdom. Speculates on future developments for this emerging technology. (JJK)

Discusses trends that have converged to transform our understanding of genetic and environmental influences on personality traits. Presents five main determinants of personality. (ZWH)

The evolutionary paths by which the characteristic properties of sex chromosomes may have evolved are reviewed. The evolution of the X and Y chromosomes from a cosexual ancestor is discussed. (CW)

Describes the present peer review process which the National Science Foundation (NSF) uses and cites opposition to the method. Presents legislation introduced in Congress to change the current evaluation method. (CP)

Discussed are past work and recent advances in the use of electron microscopes for viewing structures immersed in gas and liquid. Improved environmental chambers make it possible to examine wet specimens easily. (Author/RH)