Joint coding of shape and blur in area V4.
Joint coding of shape and blur in area V4.
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DOI:
10.1038/s41467-017-02438-8
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发表时间:
2018-01-31
影响因子:
16.6
通讯作者:
Pasupathy A
中科院分区:
文献类型:
--
作者:
Oleskiw TD;Nowack A;Pasupathy A
Edge blur, a prevalent feature of natural images, is believed to facilitate multiple visual processes including segmentation and depth perception. Furthermore, image descriptions that explicitly combine blur and shape information provide complete representations of naturalistic scenes. Here we report the first demonstration of blur encoding in primate visual cortex: neurons in macaque V4 exhibit tuning for both object shape and boundary blur, with observed blur tuning not explained by potential confounds including stimulus size, intensity, or curvature. A descriptive model wherein blur selectivity is cast as a distinct neural process that modulates the gain of shape-selective V4 neurons explains observed data, supporting the hypothesis that shape and blur are fundamental features of a sufficient neural code for natural image representation in V4. Blurred edges of objects can aid in depth perception and segmentation, yet how it is combined with shape information in the visual pathway is unknown. Here the authors report that neurons in higher visual area V4 represent both object shape and boundary blur, controlling for stimulus size, intensity and curvature.
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影响因子:
5.4
作者:
ATTNEAVE, F
通讯作者:
ATTNEAVE, F
影响因子:
5.3
作者:
El-Shamayleh, Yasmine;Pasupathy, Anitha
通讯作者:
Pasupathy, Anitha
影响因子:
1.6
作者:
Allen, BP
通讯作者:
Allen, BP
DOI:
10.1523/jneurosci.1890-11.2011
发表时间:
2011-08-31
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Bushnell BN;Harding PJ;Kosai Y;Bair W;Pasupathy A
通讯作者:
Pasupathy A
影响因子:
1.8
作者:
Bell, AJ;Sejnowski, TJ
通讯作者:
Sejnowski, TJ