Receptive field structure of monkey V2 neurons for encoding orientation contrast

Anzai, Akiyuki; Essen, David C. Van; Peng, Xinmiao; Hegdé, Jay

doi:10.1167/2.7.221

Cited by 2 publications

(4 citation statements)

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“…(b) V2 units within a different orientation domain, showing a similar structure of secondary orientation preferences. The afferent and lateral connectivity patterns match those found in monkeys (Malach et al, 1994;Anzai & Van Essen, 2001. The preferred patterns (corner, junction, and cross) and the existence of substructures within V2 orientation domain are predictions of the LISSOM model.…”

Section: Preferred Visual Patterns Of V2supporting

confidence: 68%

“…Results from two independent physiological studies (Anzai & Van Essen, 2001Anzai, Van Essen, Peng, & Hegdé, 2002;Ito & Komatsu, 2004) are consistent with this prediction. The model also predicts that cortical columns that prefer the same primary orientation form contiguous domains in V2.…”

Section: Introductionsupporting

confidence: 71%

“…First, most orientation-selective V2 receptive fields consist of two different orientations, thus forming selectivity of corners, junctions, or crosses. This prediction provides an explanation for the observations that some V2 receptive fields tune to different orientations (Anzai & Van Essen, 2001 and that some V2 neurons are selective to both oriented lines and angles (Ito & Komatsu, 2004). Second, the model predicts that each V2 orientation domain consists of subdomains of many different orientations.…”

Section: Discussionmentioning

confidence: 75%

“…This prediction is supported by the results of two independent studies in monkeys. First, discrete subregions within V2 receptive fields have been shown to prefer different orientations (Anzai & Van Essen, 2001. This result suggests that the V2 neurons studied preferred more complicated patterns than straight lines: the model predicts that a combination of two different orientations constitutes such a preferred pattern.…”

Section: Preferred Visual Patterns Of V2mentioning

confidence: 89%

See 3 more Smart Citations

Computational Predictions on the Receptive Fields and Organization of V2 for Shape Processing

Sit

Miikkulainen

2009

Neural Computation

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It has been more than 40 years since the first studies of the secondary visual cortex (V2) were published. However, no concrete hypothesis on how the receptive field of V2 neurons supports general shape processing has been proposed to date. Using a computational model that follows the principle of self-organization, we advance two hypotheses in this letter: (1) typical V2 orientation-selective receptive field contains a primary orientation and a secondary orientation component, forming a corner, a junction, or a cross; and (2) V2 columns with the same primary orientation form contiguous domains, divided into subdomains that prefer different secondary orientations. The first hypothesis is consistent with existing experimental evidence, and both hypotheses can be tested with current techniques in animals. In this manner, computational modeling can be used to provide verifiable predictions that eventually allow us to understand the role of V2 in visual processing.

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Section: Preferred Visual Patterns Of V2supporting

confidence: 68%

Section: Introductionsupporting

confidence: 71%