Accession Number:

ADA229111

Title:

Multimodal Interactions in Sensory-Motor Processing

Descriptive Note:

Annual technical rept. Jul 1989-Jul 1990,

Corporate Author:

DARTMOUTH MEDICAL SCHOOL HANOVER NH

Report Date:

1990-09-15

Pagination or Media Count:

90.0

Abstract:

The saccadic control system to study the selection of stimulus events according to their spatial location. The present work focuses on two factors known to influence saccade latency the presence of a fixation stimulus and the nature of the saccade target. We report evidence which suggests that fixation point offsets facilitate pre-motor stages of saccade generation Reuter-Lorenz et al., in press Appendix I. This idea, in conjunction with electrophysiological data, suggested that fixation offset might also facilitate saccades to acoustic targets. Experiment 1 confirmed this suggestion Fendrich, et al. in preparation. The facilitatory effects of redundant stimulation via the visual and auditory modalities is examined in Experiment 2 Nozawa et al., 1990. The data suggest significant neural summation, which we attribute to bimodal convergence onto individual cells though to mediate saccadic command functions. js

Subject Categories:

  • Medicine and Medical Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE