期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 109, 期 16, 页码 6313-6318出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1200125109
关键词
vision; neuronal coding; stereopsis; illusion
资金
- National Eye Institute [F32 EY017770]
- National Science Foundation [IIS 0713206]
- Air Force Office of Scientific Research [FA9550-09-1-0678]
- Pennsylvania Department of Health
Humans excel at inferring information about 3D scenes from their 2D images projected on the retinas, using a wide range of depth cues. One example of such inference is the tendency for observers to perceive lighter image regions as closer. This psychophysical behavior could have an ecological basis because nearer regions tend to be lighter in natural 3D scenes. Here, we show that an analogous association exists between the relative luminance and binocular disparity preferences of neurons in macaque primary visual cortex. The joint coding of relative luminance and binocular disparity at the neuronal population level may be an integral part of the neural mechanisms for perceptual inference of depth from images.
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