THE EFFECT OF MAGNIFICATION ON VISUAL TASKS. II. PERCEPTUAL INTEGRATION,
Abstract
The effect of magnification on (a) a task requiring recognition of five-letter words with fragment strokes, words with intact strokes being used as controls, and (b) a task requiring estimation of the relative numerousness of two types of symbols in an array, was investigated. Magnification was found (1) to have no effect on recognition of words with intact strokes, (2) to impair recognition of words with fragmented strokes, and (3) to improve performance on the estimation of symbols. These results, in conjunction with those presented in a previous report on still other tasks, demonstrate that the effect of magnification may vary with the task on the basis of visual-perceptual factors alone, when instrumental factors are so far as possible ruled out. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1962
- Accession Number
- AD0673316
Entities
People
- John A. Hanson
- Margaret W. Raben
- Mason N. Crook
- Michael J. Wargo
Organizations
- Tufts University