November 2004
Volume 4, Issue 11
Free
OSA Fall Vision Meeting Abstract  |   November 2004
Multiple layers of contrast adaptation
Author Affiliations
  • Peter Lennie
    Center for Neural Science, New York University, USA
Journal of Vision November 2004, Vol.4, 35. doi:10.1167/4.11.35
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      Peter Lennie; Multiple layers of contrast adaptation. Journal of Vision 2004;4(11):35. doi: 10.1167/4.11.35.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

The spatial selectivity of contrast adaptation found psychophysically has generally been taken as evidence for its cortical origin, and physiological studies have confirmed that adaptation occurs in many simple and complex cells. However, recent work in LGN shows substantial contrast adaptation in at least one of the pathways leaving the retina, and the characteristics of this adaptation are unlike those of adaptation in cortex. To complicate the picture further, adaptation in many neurons in V1 is often much less selective than earlier work would have led us to expect, and provides a less compelling account of psychophysical observations. The perceptual adaptation probably reflects changes occurring at several levels of the visual pathway, including some beyond V1.

Lennie, P.(2004). Multiple layers of contrast adaptation [Abstract]. Journal of Vision, 4( 11): 35, 35a, http://journalofvision.org/4/11/35/, doi:10.1167/4.11.35. [CrossRef]
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