cortical dynamics of stratification, transparency, and neon color spreading

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The following article is now available at
http://www.cns.bu.edu/Profiles/Grossberg in PDF:

Stephen Grossberg and Arash Yazdanbakhsh (2005)
Laminar Cortical Dynamics of 3D Surface Perception:
Stratification, Transparency, and Neon Color Spreading
Vision Research, in press

Abstract:
The 3D LAMINART neural model is developed to explain how the visual
cortex gives rise to 3D percepts of stratification, transparency, and
neon color spreading in response to 2D pictures and 3D scenes. Such
percepts are sensitive to whether contiguous image regions have the
same contrast polarity and ocularity. The model predicts how
like-polarity competition at V1 simple cells in layer 4 may cause
these percepts when it interacts with other boundary and surface
processes in V1, V2, and V4. The model also explains how: the Metelli
Rules cause transparent percepts, bistable transparency percepts
arise, and attention influences transparency reversal.

Key Words: Surface Perception, Perceptual Grouping, 3D Figure-Ground
Separation, Transparency, Neon Color Spreading

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