Multimodal Interactions in Sensory-Motor Processing
Abstract
We describe our progress in (a) delineating the functional architecture of the human saccadic and attentional orienting systems (section 2) based on analyses of reaction times; (b) development of accurate surface maps of the human neocortex in vivo from reconstructions of MR scans (section 3). Work carried out under AFOSR funding (2 in 90-91 year) provides the basis for our current model, which identifies two serially organized component processes in saccade generation (section 1.1). The early component is sensory; it's most noteworthy feature being the mode of convergence of visual and auditory information in the saccadic control system (section 1.2). In the subsequent pre- motor component, the processing time is partially determined by the state of fixation. Fixation point offsets facilitate saccade latencies by decreasing premotor processing times via disinhibition. These sensory and motor facilitatory mechanisms can be combined to optimize human saccadic performance (section 1.1). The ultimate goal is to provide a model which accounts for human oculomotor performance in terms of physiologically plausible component subprocesses.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 30, 1991
- Accession Number
- ADA242511
Entities
People
- G. Nozawa
- H. C. Hughes
- M. S. Gazzaniga
- Patricia A. Reuter-lorenz
- Robert Fendrich
Organizations
- Geisel School of Medicine