Nonlocal spatiotemporal representation in the hippocampus of freely flying bats
Navigation occurs through a continuum of space and time. The hippocampus is known to encode the immediate position of moving animals. However, active navigation, especially at high speeds, may require representing navigational information beyond the present moment. Using wireless electrophysiologica...
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Published in | Science (American Association for the Advancement of Science) Vol. 373; no. 6551; pp. 242 - 247 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
United States
The American Association for the Advancement of Science
09.07.2021
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Subjects | |
Online Access | Get full text |
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Summary: | Navigation occurs through a continuum of space and time. The hippocampus is known to encode the immediate position of moving animals. However, active navigation, especially at high speeds, may require representing navigational information beyond the present moment. Using wireless electrophysiological recordings in freely flying bats, we demonstrate that neural activity in area CA1 predominantly encodes nonlocal spatial information up to meters away from the bat's present position. This spatiotemporal representation extends both forward and backward in time, with an emphasis on future locations, and is found during both random exploration and goal-directed navigation. The representation of position thus extends along a continuum, with each moment containing information about past, present, and future, and may provide a key mechanism for navigating along self-selected and remembered paths. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Author contributions: N.M.D. and M.M.Y. designed the research, analyzed the data, and wrote the manuscript. N.M.D. performed the experiments. |
ISSN: | 0036-8075 1095-9203 |
DOI: | 10.1126/science.abg1278 |