Masking of figure-ground texture and single targets by surround inhibition: a computational spiking model.
A visual stimulus can be made invisible, i.e. masked, by the presentation of a second stimulus. In the sensory cortex, neural responses to a masked stimulus are suppressed, yet how this suppression comes about is still debated. Inhibitory models explain masking by asserting that the mask exerts an i...
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2012-01-01
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doaj-5ba8fd1b2f83406dbaab9f026b81f9a02020-11-25T01:46:01ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0172e3177310.1371/journal.pone.0031773Masking of figure-ground texture and single targets by surround inhibition: a computational spiking model.Hans SupèrAugust RomeoA visual stimulus can be made invisible, i.e. masked, by the presentation of a second stimulus. In the sensory cortex, neural responses to a masked stimulus are suppressed, yet how this suppression comes about is still debated. Inhibitory models explain masking by asserting that the mask exerts an inhibitory influence on the responses of a neuron evoked by the target. However, other models argue that the masking interferes with recurrent or reentrant processing. Using computer modeling, we show that surround inhibition evoked by ON and OFF responses to the mask suppresses the responses to a briefly presented stimulus in forward and backward masking paradigms. Our model results resemble several previously described psychophysical and neurophysiological findings in perceptual masking experiments and are in line with earlier theoretical descriptions of masking. We suggest that precise spatiotemporal influence of surround inhibition is relevant for visual detection.http://europepmc.org/articles/PMC3290529?pdf=render |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hans Supèr August Romeo |
spellingShingle |
Hans Supèr August Romeo Masking of figure-ground texture and single targets by surround inhibition: a computational spiking model. PLoS ONE |
author_facet |
Hans Supèr August Romeo |
author_sort |
Hans Supèr |
title |
Masking of figure-ground texture and single targets by surround inhibition: a computational spiking model. |
title_short |
Masking of figure-ground texture and single targets by surround inhibition: a computational spiking model. |
title_full |
Masking of figure-ground texture and single targets by surround inhibition: a computational spiking model. |
title_fullStr |
Masking of figure-ground texture and single targets by surround inhibition: a computational spiking model. |
title_full_unstemmed |
Masking of figure-ground texture and single targets by surround inhibition: a computational spiking model. |
title_sort |
masking of figure-ground texture and single targets by surround inhibition: a computational spiking model. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS ONE |
issn |
1932-6203 |
publishDate |
2012-01-01 |
description |
A visual stimulus can be made invisible, i.e. masked, by the presentation of a second stimulus. In the sensory cortex, neural responses to a masked stimulus are suppressed, yet how this suppression comes about is still debated. Inhibitory models explain masking by asserting that the mask exerts an inhibitory influence on the responses of a neuron evoked by the target. However, other models argue that the masking interferes with recurrent or reentrant processing. Using computer modeling, we show that surround inhibition evoked by ON and OFF responses to the mask suppresses the responses to a briefly presented stimulus in forward and backward masking paradigms. Our model results resemble several previously described psychophysical and neurophysiological findings in perceptual masking experiments and are in line with earlier theoretical descriptions of masking. We suggest that precise spatiotemporal influence of surround inhibition is relevant for visual detection. |
url |
http://europepmc.org/articles/PMC3290529?pdf=render |
work_keys_str_mv |
AT hanssuper maskingoffiguregroundtextureandsingletargetsbysurroundinhibitionacomputationalspikingmodel AT augustromeo maskingoffiguregroundtextureandsingletargetsbysurroundinhibitionacomputationalspikingmodel |
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1725021286063669248 |