Universität zu Köln

Zimmermann, Eckart ORCID: 0000-0002-1964-2711, Weidner, Ralph ORCID: 0000-0002-4502-0166, Abdollahi, Rouhollah O. and Fink, Gereon R. ORCID: 0000-0002-8230-1856 (2016). Spatiotopic Adaptation in Visual Areas. J. Neurosci., 36 (37). S. 9526 - 9535. WASHINGTON: SOC NEUROSCIENCE. ISSN 0270-6474

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Abstract

The ability to perceive the visual world around us as spatially stable despite frequent eye movements is one of the long-standing mysteries of neuroscience. The existence of neural mechanisms processing spatiotopic information is indispensable for a successful interaction with the external world. However, how the brain handles spatiotopic information remains a matter of debate. We here combined behavioral and fMRI adaptation to investigate the coding of spatiotopic information in the human brain. Subjects were adapted by a prolonged presentation of a tilted grating. Thereafter, they performed a saccade followed by the brief presentation of a probe. This procedure allowed dissociating adaptation aftereffects at retinal and spatiotopic positions. We found significant behavioral and functional adaptation in both retinal and spatiotopic positions, indicating information transfer into a spatiotopic coordinate system. The brain regions involved were located in ventral visual areas V3, V4, and V0. Our findings suggest that spatiotopic representations involved in maintaining visual stability are constructed by dynamically remapping visual feature information between retinotopic regions within early visual areas.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Zimmermann, Eckart UNSPECIFIED orcid.org/0000-0002-1964-2711 UNSPECIFIED Weidner, Ralph UNSPECIFIED orcid.org/0000-0002-4502-0166 UNSPECIFIED Abdollahi, Rouhollah O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fink, Gereon R. UNSPECIFIED orcid.org/0000-0002-8230-1856 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-262361
DOI:	10.1523/JNEUROSCI.0052-16.2016
Journal or Publication Title:	J. Neurosci.
Volume:	36
Number:	37
Page Range:	S. 9526 - 9535
Date:	2016
Publisher:	SOC NEUROSCIENCE
Place of Publication:	WASHINGTON
ISSN:	0270-6474
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language OCCIPITAL CORTEX; PARIETAL NEURONS; GAZE DIRECTION; EYE-MOVEMENTS; MAPS; REPRESENTATION; MODULATION; RESPONSES; DISTANCE; STRIATE Multiple languages Neurosciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/26236