Roles of contour and surface processing in microgenesis of object perception and visual consciousness
Bruno G. Breitmeyer, Evelina Tapia
Advances in Cognitive Psychology 2011 DOI: 10.2478/v10053-008-0088-y (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Theoretical or philosophical paper Peer reviewed |
|---|---|
| Citations | 11 |
| Key points | Argues that form and surface attributes are processed by separate pathways, with form becoming conscious only as or after surface properties are filled in. Proposes that nonconscious form processing is faster than surface processing, whereas conscious form processing is slower, based on theoretical and psychophysical evidence. |
Abstract
Developments in visual neuroscience and neural-network modeling indicate the existence of separate pathways for the processing of form and surface attributes of a visual object. In line with prior theoretical proposals, it is assumed that the processing of form can be explicit or conscious only as or after the surface property such as color is filled in. In conjunction with extant psychophysical findings, these developments point to interesting distinctions between nonconscious and conscious processing of these attributes, specifically in relation to distinguishable temporal dynamics. At nonconscious levels form processing proceeds faster than surface processing, whereas in contrast, at conscious levels form processing proceeds slower than surface processing. I mplications of separate form and surface processing for current and future psychophysical and neuroscientific research, particularly that relating cortical oscillations to conjunctions of surface and form features, and for cognitive science and philosophy of mind and consciousness are discussed.