The ventral eye of "Limulus" (horseshoe crab) contains only one type of photoreceptor. Behaviors mediated by the ventral eye provide an unambiguous representation of the function of that single-receptor type. Compares such behaviors with results of acute, single-cell investigations to assay for the contributions of candidate neural codes in the…

Preschoolers (N=36) and second graders (N=41) were asked to rank preference of a white child, black and an Indian. Subjects were middle-class white southern students who ranked the sharing of small items and their companions in hypothetical social interaction situations. Influence of race of the recipient on sharing behavior is believed to vary…

Research suggests that we process information by way of two distinct and functionally separate coding systems. Their location, somewhat dependent on cerebral laterality, varies in right- and left-handed persons. Tests this dual coding model. (Editor/RK)

Six-month-old infants recognize a cue 24 hours after training in the original context but not in a different one. It is demonstrated that this retrieval deficit could be overcome if infants are briefly and passively exposed to a novel context. Concludes that each training episode is encoded in terms of the context in which it occurs. Contains 48…

Application of the bootstrap method to complex psychological analysis is illustrated using a simulation experiment with two populations with small and large samples. The method provides variance estimates, allows testing of nested competing models, and gives a preliminary idea about parameter variability. (SLD)

Uses work with anxiety-disordered youth as an example of potentially transportable manual-based treatment. Examines client factors, service-clinic therapist factors, and researcher factors that may contribute to the reported gap between research and practice outcomes. (JPS)

We examined 7-month-old infants' responses to 6 joy-eliciting episodes. Three episodes included and 3 did not include a major social-interactive component. Confirmatory factor analysis of infants' joy reactions in these episodes revealed that a 2-factor model significantly improved the fit over a single-factor solution. Those 2 factors represented…

Three studies investigated the role of surface attributes in infants' identification of agents, using a habituation paradigm designed to tap infants' interpretation of grasping as goal directed (Woodward, 1998). When they viewed a bare human hand grasping objects, 7- and 12-month-old infants focused on the relation between the hand and its goal.…

Previous research by Lidster and Bremner (1999) on young children's ability to coordinate two dimensions has shown that performance on construction tasks (in which children have to give the correct coordinates for a point in space that is already known) is superior to performance on interpretation tasks (in which children are given a pair of…

Examinations of interference between verbal and visual materials in working memory have produced mixed results. If there is a central form of storage (e.g., the focus of attention; N. Cowan, 2001), then cross-domain interference should be obtained. The authors examined this question with a visual-array comparison task (S. J. Luck & E. K. Vogel,…

The present experiments examined the effects of injecting glucose into the dorsal hippocampus or dorsolateral striatum on learning rates and on strategy selection in rats trained on a T-maze that can be solved by using either a hippocampus-sensitive place or striatum-sensitive response strategy. Percentage strategy selection on a probe trial…

In connection with the growing complexity and intensiveness of school instruction, special urgency attaches to the task of ensuring that the organization of the educational process at different levels of school is in keeping with the developmental stages of psychophysiological and social development. A number of researchers have emphasized the…

Barlow (1981) lists nine reasons why clinical psychologists do not undertake research and why traditional research does not influence clinicians. These reasons focus on: (1) lack of access to a large subject pool; (2) manpower costs of conducting research; (3) financial costs of conducting research; (4) ethics; (5) research's overreliance on…

Developments that laid the groundwork for the modern psychology of attitude began with early Greek philosophy. Conceptions of the cosmologists during the Golden Age of Greek Civilization and the Sophist movement served as a link between mythology and science. Contributions of British Empiricism and German Experimentalism were instrumental to the…

This study investigates cognitive dissonance and self-perception theories, utilizing the bogus pipeline to measure attitude change. Subjects were 48 college students. They were assigned randomly to one of four experimental groups, on the basis of extreme "pro" scores on an issue dealing with student participantion in university course…