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'Fearful-place' coding in the amygdala-hippocampal network

Title
'Fearful-place' coding in the amygdala-hippocampal network
Authors
Kong, Mi-SeonKim, Eun JooPark, SanggeonZweifel, Larry S.Huh, YeowoolCho, JeiwonKim, Jeansok J.
Ewha Authors
조제원
SCOPUS Author ID
조제원scopus
Issue Date
2021
Journal Title
ELIFE
ISSN
2050-084XJCR Link
Citation
ELIFE vol. 10
Keywords
decision makingfearpredatorplace cellssimultaneous recordingspike synchronyRat
Publisher
eLIFE SCIENCES PUBL LTD
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Animals seeking survival needs must be able to assess different locations of threats in their habitat. However, the neural integration of spatial and risk information essential for guiding goal-directed behavior remains poorly understood. Thus, we investigated simultaneous activities of fear-responsive basal amygdala (BA) and place-responsive dorsal hippocampus (dHPC) neurons as rats left the safe nest to search for food in an exposed space and encountered a simulated 'predator.' In this realistic situation, BA cells increased their firing rates and dHPC place cells decreased their spatial stability near the threat. Importantly, only those dHPC cells synchronized with the predator-responsive BA cells remapped significantly as a function of escalating risk location. Moreover, optogenetic stimulation of BA neurons was sufficient to cause spatial avoidance behavior and disrupt place fields. These results suggest a dynamic interaction of BA's fear signalling cells and dHPC's spatial coding cells as animals traverse safe-danger areas of their environment.
DOI
10.7554/eLife.72040

10.7554/eLife.72040.sa1

10.7554/eLife.72040.sa2
Appears in Collections:
일반대학원 > 뇌·인지과학과 > Journal papers
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