Abstract
Discrimination of a figure from its ground is essential for the perception of surface, which is fundamental for the recognition of shape, spatial structure, and objects. Recent physiological studies have reported that neurons in monkey’s V2 and V4 show activities corresponding to the direction of figure [1–3]. Zhou et al. [1] have distinguished types of neurons that showed selectivity to border ownership and/or contrast, about 80% of which were sensitive to contrast polarity. Figure la illustrates the distribution of the neuronal selectivity in V1, V2, and V4. The selectivity to border ownership and contrast was observed in stimuli with single squares, C-shaped figures, and two overlapping squares, as shown in Fig. lb. However, underlying neural mechanisms for figure determination have not been clarified.
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© 2003 Springer-Verlag Tokyo
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Nishimura, H., Sakai, K. (2003). A Network Model for Figure/Ground Determination Based on Contrast Information. In: Kaneko, A. (eds) The Neural Basis of Early Vision. Keio University International Symposia for Life Sciences and Medicine, vol 11. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68447-3_78
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DOI: https://doi.org/10.1007/978-4-431-68447-3_78
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68449-7
Online ISBN: 978-4-431-68447-3
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