doi: 10.1037//0882-7974.2.2.99.
Adult age differences in the speed and capacity of information processing: 2. An electrophysiological approach
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- PMID: 3268210
- DOI: 10.1037//0882-7974.2.2.99
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Adult age differences in the speed and capacity of information processing: 2. An electrophysiological approach
Psychol Aging.
1987 Jun.
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.
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