VISUAL SEARCH EXPERIMENTS: ACUITY, RESPONSE TIME, NOISE PERSISTENCE.
Abstract
This experiment demonstrated the degradation in search performance resulting from a decrease in the frame rate of a static, structured display containing television-type visual 'noise'. The display was produced by projecting moving pictures of the static, structured scene; the noise in the scene was obtained by the double exposure and special printing of the film. Results indicate that restricted usefulness of a low frame rate, television-type display may be expected in a low signal-to-noise ratio condition. Neither peripheral and foveal acuity nor eye dominance scores correlated significantly with search time. There was a significant correlation between response time and search time; this is attributed to the mental image processing and decision time common to both tasks. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 02, 1965
- Accession Number
- AD0619507
Entities
People
- Ronal A. Erickson
Organizations
- Naval Air Weapons Station China Lake