Perceptual consequences of centre–surround antagonism in visual motion processing

Duje Tadin (), Joseph S. Lappin, Lee A. Gilroy and Randolph Blake
Additional contact information
Duje Tadin: Vanderbilt University
Joseph S. Lappin: Vanderbilt University
Lee A. Gilroy: Vanderbilt University
Randolph Blake: Vanderbilt University

Nature, 2003, vol. 424, issue 6946, 312-315

Abstract: Abstract Centre–surround receptive field organization is a ubiquitous property in mammalian visual systems, presumably tailored for extracting image features that are differentially distributed over space1. In visual motion, this is evident as antagonistic interactions between centre and surround regions of the receptive fields of many direction-selective neurons in visual cortex2,3,4,5,6. In a series of psychophysical experiments we make the counterintuitive observation that increasing the size of a high-contrast moving pattern renders its direction of motion more difficult to perceive and reduces its effectiveness as an adaptation stimulus. We propose that this is a perceptual correlate of centre–surround antagonism, possibly within a population of neurons in the middle temporal visual area. The spatial antagonism of motion signals observed at high contrast gives way to spatial summation as contrast decreases. Evidently, integration of motion signals over space depends crucially on the visibility of those signals, thereby allowing the visual system to register motion information efficiently and adaptively.

Date: 2003
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/nature01800 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:424:y:2003:i:6946:d:10.1038_nature01800

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature01800

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().