Stochastic Models of Attention and Search
Abstract
Four lines of experimentation have been carried out. In the first set of experiments, we have tested and rejected a two-process model of visual attention allocation. The PI has proposed an alternative perceptual sampling model and performed stochastic simulations of the model to show that it can account for certain aspects of human performance in cued visual search tasks. In the second and third set of experiments, the PI has found that a common mechanism may underlie the perception of bistable apparent motion and the capture of visual attention in certain visual search tasks. In particular, the appearance of a new perceptual object in the visual field captures attention and this may influence how object identity is assigned in apparent motion perception. In the final set of experiments, the PI has examined the possible influence of factors influencing figural identity on the perception of bistable apparent motion. Preliminary results suggest that grouping by spatial proximity can modulate the assignment of motion correspondence in apparent motion perception.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 28, 1993
- Accession Number
- ADA268622
Entities
People
- Steven Yantis
Organizations
- Johns Hopkins University