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An independent, landmark-dominated head-direction signal in dysgranular retrosplenial cortex

Nature neuroscience, 2017-02, Vol.20 (2), p.173-175 [Peer Reviewed Journal]

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Title:
An independent, landmark-dominated head-direction signal in dysgranular retrosplenial cortex
Author: Jacob, Pierre-Yves ; Casali, Giulio ; Spieser, Laure ; Page, Hector ; Overington, Dorothy ; Jeffery, Kate
Subjects: Animals ; Brain - physiology ; Cognitive science ; Cues ; Head - physiology ; Head Movements - physiology ; Instruments (Equipment) ; Male ; Neurons ; Neurons - physiology ; Neuroscience ; Orientation - physiology ; Physical instruments ; Rats ; Rotation
Is Part Of: Nature neuroscience, 2017-02, Vol.20 (2), p.173-175
Description: We investigated how landmarks influence the brain's computation of head direction and found that in a bidirectionally symmetrical environment, some neurons in dysgranular retrosplenial cortex showed bidirectional firing patterns. This indicates dominance of neural activity by local environmental cues even when these conflicted with the global head direction signal. It suggests a mechanism for associating landmarks to or dissociating them from the head direction signal, according to their directional stability and/or utility.
Publisher: United States: Nature Publishing Group
Language: English
Identifier: ISSN: 1097-6256
EISSN: 1546-1726
DOI: 10.1038/nn.4465
PMID: 27991898
CODEN: NANEFN
Source: ProQuest One Psychology
Hyper Article en Ligne (HAL) (Open Access)
MEDLINE
ProQuest Central

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