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Hippocampal spatial view cells for memory and navigation, and their underlying connectivity in humans
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Rolls, Edmund T. (2023) Hippocampal spatial view cells for memory and navigation, and their underlying connectivity in humans. Hippocampus, 33 (5). pp. 533-572. doi:10.1002/hipo.23467 ISSN 1050-9631.
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Official URL: http://doi.org/10.1002/hipo.23467
Abstract
Hippocampal and parahippocampal gyrus spatial view neurons in primates respond to the spatial location being looked at. The representation is allocentric, in that the responses are to locations “out there” in the world, and are relatively invariant with respect to retinal position, eye position, head direction, and the place where the individual is located. The underlying connectivity in humans is from ventromedial visual cortical regions to the parahippocampal scene area, leading to the theory that spatial view cells are formed by combinations of overlapping feature inputs self-organized based on their closeness in space. Thus, although spatial view cells represent “where” for episodic memory and navigation, they are formed by ventral visual stream feature inputs in the parahippocampal gyrus in what is the parahippocampal scene area. A second “where” driver of spatial view cells are parietal inputs, which it is proposed provide the idiothetic update for spatial view cells, used for memory recall and navigation when the spatial view details are obscured. Inferior temporal object “what” inputs and orbitofrontal cortex reward inputs connect to the human hippocampal system, and in macaques can be associated in the hippocampus with spatial view cell “where” representations to implement episodic memory. Hippocampal spatial view cells also provide a basis for navigation to a series of viewed landmarks, with the orbitofrontal cortex reward inputs to the hippocampus providing the goals for navigation, which can then be implemented by hippocampal connectivity in humans to parietal cortex regions involved in visuomotor actions in space. The presence of foveate vision and the highly developed temporal lobe for object and scene processing in primates including humans provide a basis for hippocampal spatial view cells to be key to understanding episodic memory in the primate and human hippocampus, and the roles of this system in primate including human navigation.
Item Type: | Journal Article | ||||||||||
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Subjects: | Q Science > QM Human anatomy Q Science > QP Physiology |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||||||||
Library of Congress Subject Headings (LCSH): | Hippocampus (Brain), Primates -- Physiology, Memory -- Physiological aspects, Hippocampus (Brain) -- Pathophysiology | ||||||||||
Journal or Publication Title: | Hippocampus | ||||||||||
Publisher: | John Wiley & Sons, Inc., | ||||||||||
ISSN: | 1050-9631 | ||||||||||
Official Date: | May 2023 | ||||||||||
Dates: |
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Volume: | 33 | ||||||||||
Number: | 5 | ||||||||||
Number of Pages: | 40 | ||||||||||
Page Range: | pp. 533-572 | ||||||||||
DOI: | 10.1002/hipo.23467 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||
Date of first compliant deposit: | 19 October 2022 | ||||||||||
Date of first compliant Open Access: | 21 October 2022 | ||||||||||
RIOXX Funder/Project Grant: |
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