Texture segmentation in human perception: a combined modeling and fMRI study

Neuroscience
A ThielscherG Grön

Abstract

The human visual system uses texture information to segment visual scenes into figure and ground. We developed a computational model of human texture processing [Thielscher A, Neumann H (2003) Neural mechanisms of cortico-cortical interaction in texture boundary detection: a modeling approach. Neuroscience 122:921-939] which allows us to examine the functional roles of early and intermediate stages of the ventral visual pathway in figure-ground segmentation. In particular, the model highlights the central role of cells in mid-level areas (such as V4) with larger receptive fields in the robust identification of texture boundaries and pop-out stimuli even under noisy conditions. A straightforward prediction of the model is that the activity of cells in mid-level, but not early visual areas directly co-varies with the saliency of the texture borders in the visual scene. Consequently, their activity should directly correlate with the saliency of pop-out texture regions as accessed in psychophysical studies [Nothdurft HC (1991) Texture segmentation and pop-out from orientation contrast. Vision Res 31:1073-1078]. This prediction explicitly derived from the model was tested using functional magnetic resonance imaging. The saliency of ...Continue Reading

References

Jan 1, 1991·Vision Research·H C Nothdurft
Mar 19, 1996·Proceedings of the National Academy of Sciences of the United States of America·E A DeYoeJ Neitz
Apr 9, 1999·Nature Neuroscience·N HadjikhaniR B Tootell
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Oct 14, 2005·Journal of Neurophysiology·Jonas LarssonDavid J Heeger
Nov 15, 2006·Journal of Computational Neuroscience·A Thielscher, H Neumann

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Citations

Aug 24, 2013·Visual Neuroscience·Jeremy D Fesi, Janine D Mendola
Jun 6, 2013·PLoS Computational Biology·Kendrick N KayBrian A Wandell
Apr 18, 2014·Journal of Cognitive Neuroscience·Ramakrishna ChakravarthiRufin VanRullen
May 16, 2014·NeuroImage·Atsushi WadaHiroshi Ando
Aug 2, 2011·Neuroscience Letters·Anna SchuböIgnacio Vallines
Apr 23, 2014·Vision Research·Jeremy D FesiRick O Gilmore
Jul 1, 2008·Brain Research·T Aisling WhitakerFiona N Newell
Jan 5, 2011·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·K KinseyI E Holliday
Jan 5, 2021·Journal of Vision·Daniel Herrera-EspositoLeonel Gomez-Sena

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