Looming responses to obstacles and apertures: the role of accretion and deletion of background texture

Article Abstract:

A key element in visually guided movement involves the differentiation of obstacles in one's path from apertures through which one can pass. The perception of impending collision with an approaching obstacle is provided for by so-called looming information, which involves a symmetrical texture expansion within the obstacle's contour and the occlusion of background texture outside the object. An experiment probed the reactions of three-to-five-month-old infants to approaching obstacles and apertures. Results are discussed.

Perceptual-motor processes, Perceptual-motor learning, Sensorimotor integration

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Music cognition and performance: an introduction

Article Abstract:

Exploring the psychological processes that are involved in music perception and performance provides an opportunity to analyze psychological functioning as a whole. Analysis of the developmental issues in music, which is the essence of music cognition, enables the reconciliation of musical thought and psychological theory and experimentation. Furthermore, these studies enlighten individuals as regards their musical abilities and behaviors which makes them better able to expand their skills.

Psychological aspects, Usage, Cognitive psychology, Music appreciation, Musical ability

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Where we go with a little good information

Article Abstract:

Research was conducted to examine observer movement given a little good information. Three types of trials were carried out involving those with heading unspecified and diverging acceleration in all pairs of schematic trees, those with heading nominally specified by convergence and those with heading categorically specified by pairs of invariants to either side of the heading. Results suggest that decelerations can easily be detected than accelerations.

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