Adult age differences in the speed and capacity of information processing: II. An electrophysiological approach. |
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Authors: | Strayer, David L. Wickens, Christopher D. Braune, Rolf |
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Abstract: | A total of 60 subjects performed different variants of the Sternberg memory search task in an experiment designed to evaluate aging differences in the speed of the human information-processing system. The present study examined the nature of the age-related slowing using convergent methodologies of Sternberg's additive factors logic, the speed-accuracy trade-off, and the P300 component of the event-related brain potential. These methodologies revealed that a substantial component of slowing was manifest in perceptual encoding, response criterion adjustment, and response execution, with a lesser component related to memory search speed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
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