Multimodal Interactions in Sensory-Motor Processing
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 15, 1990
- Accession Number
- ADA229111
Entities
People
- G. Nozawa
- H. C. Hughes
- M. S. Gazzaniga
- P. A. Reuter-lorenz
- R. Fendrich
Organizations
- Geisel School of Medicine