alexa Aging and the detection of observer and moving object collisions.
General Science

General Science

Journal of Ergonomics

Author(s): Andersen GJ, Enriquez A

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Abstract The authors examined age-related differences in the detection of collision events. Older and younger observers were presented with displays simulating approaching objects that would either collide or pass by the observer. In 4 experiments, the authors found that older observers, as compared with younger observers, had less sensitivity in detecting collisions with an increase in speed, at shorter display durations, and with longer time-to-contact conditions. Older observers also had greater difficulty when the scenario simulated observer motion, suggesting that older observers have difficulty discriminating object motion expansion from background expansion from observer motion. The results of these studies support the expansion sensitivity hypothesis-that age-related decrements in detecting collision events involving moving objects are the result of a decreased sensitivity to recover expansion information. ((c) 2006 APA, all rights reserved). This article was published in Psychol Aging and referenced in Journal of Ergonomics

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