A Psychophysiological Mapping of Cognitive Processes.
Abstract
The experiment was concerned with the effects of varied cognitive and perceptual (i.e., monitoring) demands on patterns of physiological responding. Cognitive demands were varied by manipulating the number of letters (1, 3, or 5) comprising a briefly-presented set which the subject was instructed to encode, rehearse, and, 5 sec later, compare to a single test letter. Perceptual demands were varied by presenting the subject with a cue stimulus 5 sec prior to the set, informing him of the number of letters contained therein. Several physiological measures were recorded, including HR, EOG and 'probe' evoked potentials sampled from the intervals preceding and following the letter set, and 'task' evoked potentials and blinks elicited by the cue, letter set, and test stimuli. Performance data, i.e., RT and error rates, were also recorded.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1985
- Accession Number
- ADA158732
Entities
People
- J. Stern
- L. Bauer
- R. Goldstein
Organizations
- University of Washington