Accession Number : ADA228042

Title :   Central and Peripheral Precuing of Forced-Choice Discrimination.

Descriptive Note : Final rept. Jan 89-Apr 90,

Corporate Author : DAYTON UNIV OH RESEARCH INST

Personal Author(s) : Cheal, MaryLou ; Lyon, Don

Report Date : AUG 1990

Pagination or Media Count : 35

Abstract : There are suggestions in the literature that spatial precuing of attention with a peripheral cue. Therefore, data from eight discrimination experiments were reanalyzed to investigate the effects of precuing target location with either (a) a peripheral cue that may draw attention reflexively, or (b) a central, symbolic cue that may require attention to be directed voluntarily. These analyses led to predictions that were tested in a ninth experiment in which a peripheral cue resulted in peak performance within 100 msec, whereas a central cue required approximately 300 msec to reach asymptote. The time differences between the two cuing conditions suggested that more than one process is involved in the spatial precuing of attention. Keywords: Human performance; Visual signals; Attention/discrimination/reflexes; Peripheral vision; Reaction time; Target detection; Visual perception; Reflexive attention; Visual attention; Voluntary attention. (EDC)

Descriptors :   *ATTENTION, *CUEING, *REFLEXES, *VISUAL PERCEPTION, DISCRIMINATION, PEAK VALUES, PERFORMANCE(HUMAN), PERIPHERAL VISION, POSITION(LOCATION), REACTION TIME, SPATIAL DISTRIBUTION, SYMBOLS, TARGET DETECTION, VISUAL TARGETS, VISUAL SIGNALS.

Subject Categories : Anatomy and Physiology
      Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE