Mechanisms of contour perception in monkey visual cortex. I. Lines of pattern discontinuity

@inproceedings{Heydt1989MechanismsOC,
  title={Mechanisms of contour perception in monkey visual cortex. I. Lines of pattern discontinuity},
  author={R. von der Heydt and E. Peterhans},
  booktitle={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  year={1989}
}
We have studied the mechanism of contour perception by recording from neurons in the visual cortex of alert rhesus monkeys. In order to assess the relationship between neural signals and perception, we compared the responses to edges and lines with the responses to patterns in which human observers perceive a contour where no line or edge is given (anomalous contour), such as the border between gratings of thin lines offset by half a cycle. With only one exception out of 60, orientation… Expand
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The contour responses in V2, the nonadditivity, and the effect of closure can be explained by the previously proposed model (Peterhans et al., 1986), assuming that the corners excite end-stopped fields orthogonal to the contours whose signals are pooled in the contour neurons. Expand
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