DELAY OF RESPONSE IN THE PERCEPTION OF SLANT AND SHAPE,
Abstract
Observers judged the slant and shape of a circle, a rectangle, and a triangle, homogeneous white forms, monocularly under reduced viewing at 0, 20, 40, and 60 degrees geometric slant. Response conditions for the four groups of 24 Os each were, respectively, no delay, and two, four, and eight seconds' delay. Delay produced a significant over-all decrement in apparent slant which, for both no delay and delay, was significantly less than geometric slant and significantly greater than 0 degrees. Delay had no significant over-all effect on apparent shape which, for both no delay and delay, was similar to projective shape. The most prominent specific effect of delay on apparent shape was for the rectangle, which became significantly more like projective shape. The relation between apparent slant and shape failed to accord with the invariance hypothesis. The effect of delay was at variance with the view that drawn shape is confounded by implicitly judged slant. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 20, 1964
- Accession Number
- AD0612555
Entities
People
- A. H. Smith