Accession Number : ADP006082

Title :   Electric and Magnetic Brain Activity Related to Cognitive Performance,

Corporate Author : ROCHESTER UNIV NY CENTER FOR VISUAL SCIENCE

Personal Author(s) : Chapman, Robert M. ; Modena, Ivo ; Narici, Livio ; Pizzella, Vittorio ; Romani, Gian L.

Report Date : FEB 1988

Pagination or Media Count : 8

Abstract : Electrical potentials recorded from the scalp have been successfully used to study various brain processes. Electrophysiological and behavioral research has pointed to meaningful components and temporal events in Evoked Potentials that, in conjunction with behavioral measures, could elucidate targeted cognitive processes. This research has not only involved p300 and CNV components, but also has utilized other components that may be measured and related to cognitive performance, including short-term memory and linguistic processing. For example, research on the relations between connotative meaning of words and brain activity shows that the brain activity in different individuals is sufficiently similar for a common model to discriminate word classes significantly better than chance. Furthermore, these brain response discriminations among stimulus word classes survived variation in the subject's task. (js)

Descriptors :   *COGNITION, BEHAVIOR, BRAIN, DISCRIMINATE ANALYSIS, ELECTRIC POWER, ELECTRICAL PROPERTIES, ELECTROPHYSIOLOGY, HEAD(ANATOMY), LINGUISTICS, MAGNETIC FIELDS, MEMORY(PSYCHOLOGY), MODELS, PERFORMANCE(HUMAN), PROCESSING, SHORT RANGE(TIME), SKIN(ANATOMY), STIMULI, WORDS(LANGUAGE).

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE