Young infants perceive an object's trajectory as continuous across occlusion provided the temporal or spatial gap in perception is small. In 3 experiments involving 72 participants the authors investigated the effects of different forms of auditory information on 4-month-olds' perception of trajectory continuity. Provision of dynamic auditory…

Threshold luminance necessary to evoke an eye movement was evaluated as a function of age (6-21 years) and visual angle (6-42 degrees from the fovea). (BRT)

Infants aged 3, 5, and 7 months were shown solid objects and comparable intangible images of objects both within and beyond possible arm's reach. The infants' emotional reactions and reaching behavior in the presence of the image stimuli were found to be very similar to their responses to the solid objects. (Author/JMB)

Eight stump-tailed macaques were reared individually and either given all of their daily social experience in darkness or given half in the dark and half in the light. Results suggest that vision is especially important in the maintenance of assertive behaviors and in the instigation and direction of aggressive behaviors. (Author/RH)

The encoding processes of poor and average readers were compared in a short-term memory task. Since poor readers have difficulty in integrating audiovisual input, it was hypothesized that this pattern may be due to inadequate acoustic encoding. The results did not support the hypothesis. (Author/CS)

Children of 8 and 11 years and college students were tested for reorientation of visual attention to a target following a cue. The first, but not the second, experiment showed an interaction between distance of target from fixation and stimulus onset asynchrony. The second experiment suggested children can orient attention through valid, neutral,…

Three studies examined children's understanding of looking behavior in revealing another's desired goal. Found that 6-year olds and adults, but not 4-year olds, consistently regarded prolonged looking as a more important cue than glancing or inadvertent touching of the protagonist's goal. Results suggest that development is characterized by…

Matched groups of good and poor readers were administered a task that involved making same-different judgments for various combinations of auditory sequential, visual sequential, and visual spatial patterns. (Author)

The results fail to support the hypothesis that intersensory integration is the sole or even the primary developmental skill accounting for matching task improvement with increasing age. The hypothesis that retarded readers fail to develop skills in intersensory integration is also not supported. (Authors)