Spatiotemporal Characteristics of Visual Localization. Phase 2.
Abstract
The spatial and temporal characteristics of human visual localization are studied using psychophysical techniques. The primary tasks studied are frequency discrimination and distance judgments in the plane perpendicular o the observer's line of sight. It is found that these tasks cannot be performed directly on the basis of simple transformations of the retinal image, but depend on stimulus context and on judgment of stimulus depth. Experiments are designed to isolate the process underlying these distance and size judgments from more distal visual processes. One prominent finding is that the localization process is remarkably insensitive to those aspects of the stimulus that most affect contrast detection thresholds. Keywords: Human vision; Visual psychophysics; Visual spatial localization.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1987
- Accession Number
- ADA187668
Entities
People
- Christina A. Burbeck
Organizations
- SRI International