Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/95989
Title: Feed-forward segmentation of figure-ground and assignment of border-ownership
Author: Supèr, Hendrik Anne
Keil, Matthias
Romeo Val, August
Keywords: Còrtex visual
Neurones
Visual cortex
Neurons
Issue Date: 2010
Publisher: Public Library of Science (PLoS)
Abstract: Figure-ground is the segmentation of visual information into objects and their surrounding backgrounds. Two main processes herein are boundary assignment and surface segregation, which rely on the integration of global scene information. Recurrent processing either by intrinsic horizontal connections that connect surrounding neurons or by feedback projections from higher visual areas provide such information, and are considered to be the neural substrate for figure-ground segmentation. On the contrary, a role of feedforward projections in figure-ground segmentation is unknown. To have a better understanding of a role of feedforward connections in figure-ground organization, we constructed a feedforward spiking model using a biologically plausible neuron model. By means of surround inhibition our simple 3-layered model performs figure-ground segmentation and one-sided border-ownership coding. We propose that the visual system uses feed forward suppression for figure-ground segmentation and border-ownership assignment.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1371/journal.pone.0010705
It is part of: PLoS One, 2010, vol. 5, num. 5
Related resource: http://dx.doi.org/10.1371/journal.pone.0010705
URI: http://hdl.handle.net/2445/95989
ISSN: 1932-6203
Appears in Collections:Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació)

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