Differential responses in dorsal visual cortex to motion and disparity depth cues

We investigated how interactions between monocular motion parallax and binocular cues to depth vary in human motion areas for wide-field visual motion stimuli (110 × 100°). We used fMRI with an extensive 2 × 3 × 2 factorial blocked design in which we combined two types of self-motion (translational...

Full description

Bibliographic Details
Main Authors:	Arnoldussen, David M., Goossens, Jeroen, van den Berg, Albert V.
Format:	Online
Language:	English
Published:	Frontiers Media S.A. 2013
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3857528/

id	pubmed-3857528
recordtype	oai_dc
spelling	pubmed-38575282013-12-11 Differential responses in dorsal visual cortex to motion and disparity depth cues Arnoldussen, David M. Goossens, Jeroen van den Berg, Albert V. Neuroscience We investigated how interactions between monocular motion parallax and binocular cues to depth vary in human motion areas for wide-field visual motion stimuli (110 × 100°). We used fMRI with an extensive 2 × 3 × 2 factorial blocked design in which we combined two types of self-motion (translational motion and translational + rotational motion), with three categories of motion inflicted by the degree of noise (self-motion, distorted self-motion, and multiple object-motion), and two different view modes of the flow patterns (stereo and synoptic viewing). Interactions between disparity and motion category revealed distinct contributions to self- and object-motion processing in 3D. For cortical areas V6 and CSv, but not the anterior part of MT+ with bilateral visual responsiveness (MT+/b), we found a disparity-dependent effect of rotational flow and noise: When self-motion perception was degraded by adding rotational flow and moderate levels of noise, the BOLD responses were reduced compared with translational self-motion alone, but this reduction was cancelled by adding stereo information which also rescued the subject's self-motion percept. At high noise levels, when the self-motion percept gave way to a swarm of moving objects, the BOLD signal strongly increased compared to self-motion in areas MT+/b and V6, but only for stereo in the latter. BOLD response did not increase for either view mode in CSv. These different response patterns indicate different contributions of areas V6, MT+/b, and CSv to the processing of self-motion perception and the processing of multiple independent motions. Frontiers Media S.A. 2013-12-02 /pmc/articles/PMC3857528/ /pubmed/24339808 http://dx.doi.org/10.3389/fnhum.2013.00815 Text en Copyright © 2013 Arnoldussen, Goossens and van den Berg. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Arnoldussen, David M. Goossens, Jeroen van den Berg, Albert V.
spellingShingle	Arnoldussen, David M. Goossens, Jeroen van den Berg, Albert V. Differential responses in dorsal visual cortex to motion and disparity depth cues
author_facet	Arnoldussen, David M. Goossens, Jeroen van den Berg, Albert V.
author_sort	Arnoldussen, David M.
title	Differential responses in dorsal visual cortex to motion and disparity depth cues
title_short	Differential responses in dorsal visual cortex to motion and disparity depth cues
title_full	Differential responses in dorsal visual cortex to motion and disparity depth cues
title_fullStr	Differential responses in dorsal visual cortex to motion and disparity depth cues
title_full_unstemmed	Differential responses in dorsal visual cortex to motion and disparity depth cues
title_sort	differential responses in dorsal visual cortex to motion and disparity depth cues
description	We investigated how interactions between monocular motion parallax and binocular cues to depth vary in human motion areas for wide-field visual motion stimuli (110 × 100°). We used fMRI with an extensive 2 × 3 × 2 factorial blocked design in which we combined two types of self-motion (translational motion and translational + rotational motion), with three categories of motion inflicted by the degree of noise (self-motion, distorted self-motion, and multiple object-motion), and two different view modes of the flow patterns (stereo and synoptic viewing). Interactions between disparity and motion category revealed distinct contributions to self- and object-motion processing in 3D. For cortical areas V6 and CSv, but not the anterior part of MT+ with bilateral visual responsiveness (MT+/b), we found a disparity-dependent effect of rotational flow and noise: When self-motion perception was degraded by adding rotational flow and moderate levels of noise, the BOLD responses were reduced compared with translational self-motion alone, but this reduction was cancelled by adding stereo information which also rescued the subject's self-motion percept. At high noise levels, when the self-motion percept gave way to a swarm of moving objects, the BOLD signal strongly increased compared to self-motion in areas MT+/b and V6, but only for stereo in the latter. BOLD response did not increase for either view mode in CSv. These different response patterns indicate different contributions of areas V6, MT+/b, and CSv to the processing of self-motion perception and the processing of multiple independent motions.
publisher	Frontiers Media S.A.
publishDate	2013
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3857528/
_version_	1612036830249615360

Differential responses in dorsal visual cortex to motion and disparity depth cues

Similar Items