Title
Network structure of functional hippocampal lateralization in birds Network structure of functional hippocampal lateralization in birds
Author
Faculty/Department
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences . Biomedical Sciences
Publication type
article
Publication
New York, N.Y. ,
Subject
Biology
Human medicine
Source (journal)
Hippocampus. - New York, N.Y.
Volume/pages
25(2015) :11 , p. 1418-1428
ISSN
1050-9631
ISI
000363682300022
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Functional hemispheric asymmetry is a common feature of vertebrate brain organization, yet little is known about how hemispheric dominance is implemented at the neural level. One notable example of hemispheric dominance in birds is the leading role of the left hippocampal formation in controlling navigational processes that support homing in pigeons. Relying on resting state fMRI analyses (where Functional connectivity (FC) can be determined by placing a reference seed for connectivity in one hemisphere), we show that following seeding in either an anterior or posterior region of the hippocampal formation of homing pigeons and starlings, the emergent FC maps are consistently larger following seeding of the left hippocampus. Left seedings are also more likely to result in FC maps that extend to the contralateral hippocampus and outside the boundaries of the hippocampus. The data support the hypothesis that broader FC is one neural-organizational property that confers, with respect to navigation, functional dominance to the left hippocampus of birds.
E-info
https://repository.uantwerpen.be/docman/iruaauth/933f3e/6477ceca11b.pdf
Full text (open access)
https://repository.uantwerpen.be/docman/irua/39c12c/126314_2016_04_15.pdf
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