Intermediate Levels of Visual Processing.
Abstract
Our progress in trying to understand the psychological properties of human vision can be roughly divided into four main areas. (1) surface representation, here we have shown that there is an intermediate level of visual processing, between the analysis of the image and higher order representations related to specific objects; (2) attention, here we show that attention is not directed to image features but to intermediate level representations (i.e. surfaces); (3) learning, here we show many forms of perceptual learning, some of which are useful for the directing of focal attention and which are organized at a high level yet which are very machine-like in their operation, others of which are long lasting and seem like insight learning (being all or none), yet which have a representation at a retinotopic level; (4) faces, here we show that there exist robust representations of faces, these differ from normal face representations in being more efficiently coded and requiring of less attentional resources.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 15, 1998
- Accession Number
- ADA342487
Entities
People
- Ken Nakayama
Organizations
- Harvard University