The present research identifies an anomaly in sociocognitive development, whereby younger children (8 and 9 years) outperform their older counterparts (10 and 11 years) in a basic categorization task in which the acknowledgment of racial difference facilitates performance. Though older children exhibit superior performance on a race-neutral…

This review focuses on saccade research with adult psychiatric patients. It begins with an introduction of the various types of saccades and the tasks used to evoke them. The functional significance of the different types of eye movements is briefly discussed. Research findings regarding the saccadic performance of different adult psychiatric…

Similar manifestations of functional decline in ageing and Alzheimer's disease obscure differences in the underlying cognitive mechanisms of impairment. We sought to examine the contributions of top-down attentional and bottom-up perceptual factors to visual self-movement processing in ageing and Alzheimer's disease. We administered a novel…

Tangible computing combines digital feedback with physical interactions - an important link for young children. Through the use of Radio Frequency Identification (RFID) technology, a real-world object (i.e. a chair) or a symbolic toy (i.e. a stuffed bear) can be tagged so that students can activate multimedia learning modules automatically. The…

The purpose of the present investigation was to explore the extent to which a subject's ability to conjure up an image of a visual stimulus can substitute for the presence of that stimulus when a comparison with another is required. (Author/RK)

A theory on the features of a visual scene and how these features are organized to provide a representational model of the visual scene is presented. (HB)

Research supported by the Office of Naval Research, ONR Contract Number 1866(52) (ONR Contract Authority NR 142-115).

This study addressed three major questions pertaining to habituation of visual attention in infants: (1) does habituation occur gradually? (2) how do fast and slow habituators compare in their response to discrepancy? and (3) does intervening stimulation produce interference with infants' visual recognition memory? The subjects were 36 17-week-old…

The present study assessed the effects of a distinct visual stimulus (a light) associated with each component of a four-component chain of nonsense syllables. When these added lights were used to train the chains of nonsense syllables, speed of acquisition was unaffected, but errors were reduced, loss of previously acquired responses was reduced,…

This paper was concerned with the perceptions that can result from a change in the length of the retinal image of a line. Conditions that lead either to the perception of a line of changing length and the perception of a line of constant length undergoing covering or uncovering by another object were examined. (Author/RK)

Reports four experiments in which infants' recognition memory (defined by novelty preferences) was found to be improved by providing five- to seven-month-old infants with discriminable but related targets during the familiarization period. Facilitation of recognition was found for both photographs of faces and abstract patterns. (JMB)

Tested the model which posits that heart-rate deceleration and respiratory sinus arrhythmia are indices of infant attention. Infants studied cross-sectionally at 14, 20, and 26 weeks of age were presented with complex patterns on a TV screen which were accompanied by an "interrupting stumulus". (Author/BN)