Cargando…

Multiple time-scales of decision-making in the hippocampus and prefrontal cortex

The prefrontal cortex and hippocampus are crucial for memory-guided decision-making. Neural activity in the hippocampus exhibits place-cell sequences at multiple timescales, including slow behavioral sequences (~seconds) and fast theta sequences (~100–200 ms) within theta oscillation cycles. How pre...

Descripción completa

Detalles Bibliográficos
Autores principales: Tang, Wenbo, Shin, Justin D, Jadhav, Shantanu P
Formato: Online Artículo Texto
Lenguaje:English
Publicado: eLife Sciences Publications, Ltd 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7993991/
https://www.ncbi.nlm.nih.gov/pubmed/33683201
http://dx.doi.org/10.7554/eLife.66227
_version_ 1783669671205011456
author Tang, Wenbo
Shin, Justin D
Jadhav, Shantanu P
author_facet Tang, Wenbo
Shin, Justin D
Jadhav, Shantanu P
author_sort Tang, Wenbo
collection PubMed
description The prefrontal cortex and hippocampus are crucial for memory-guided decision-making. Neural activity in the hippocampus exhibits place-cell sequences at multiple timescales, including slow behavioral sequences (~seconds) and fast theta sequences (~100–200 ms) within theta oscillation cycles. How prefrontal ensembles interact with hippocampal sequences to support decision-making is unclear. Here, we examined simultaneous hippocampal and prefrontal ensemble activity in rats during learning of a spatial working-memory decision task. We found clear theta sequences in prefrontal cortex, nested within its behavioral sequences. In both regions, behavioral sequences maintained representations of current choices during navigation. In contrast, hippocampal theta sequences encoded alternatives for deliberation and were coordinated with prefrontal theta sequences that predicted upcoming choices. During error trials, these representations were preserved to guide ongoing behavior, whereas replay sequences during inter-trial periods were impaired prior to navigation. These results establish cooperative interaction between hippocampal and prefrontal sequences at multiple timescales for memory-guided decision-making.
format Online
Article
Text
id pubmed-7993991
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher eLife Sciences Publications, Ltd
record_format MEDLINE/PubMed
spelling pubmed-79939912021-03-26 Multiple time-scales of decision-making in the hippocampus and prefrontal cortex Tang, Wenbo Shin, Justin D Jadhav, Shantanu P eLife Neuroscience The prefrontal cortex and hippocampus are crucial for memory-guided decision-making. Neural activity in the hippocampus exhibits place-cell sequences at multiple timescales, including slow behavioral sequences (~seconds) and fast theta sequences (~100–200 ms) within theta oscillation cycles. How prefrontal ensembles interact with hippocampal sequences to support decision-making is unclear. Here, we examined simultaneous hippocampal and prefrontal ensemble activity in rats during learning of a spatial working-memory decision task. We found clear theta sequences in prefrontal cortex, nested within its behavioral sequences. In both regions, behavioral sequences maintained representations of current choices during navigation. In contrast, hippocampal theta sequences encoded alternatives for deliberation and were coordinated with prefrontal theta sequences that predicted upcoming choices. During error trials, these representations were preserved to guide ongoing behavior, whereas replay sequences during inter-trial periods were impaired prior to navigation. These results establish cooperative interaction between hippocampal and prefrontal sequences at multiple timescales for memory-guided decision-making. eLife Sciences Publications, Ltd 2021-03-08 /pmc/articles/PMC7993991/ /pubmed/33683201 http://dx.doi.org/10.7554/eLife.66227 Text en © 2021, Tang et al http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited.
spellingShingle Neuroscience
Tang, Wenbo
Shin, Justin D
Jadhav, Shantanu P
Multiple time-scales of decision-making in the hippocampus and prefrontal cortex
title Multiple time-scales of decision-making in the hippocampus and prefrontal cortex
title_full Multiple time-scales of decision-making in the hippocampus and prefrontal cortex
title_fullStr Multiple time-scales of decision-making in the hippocampus and prefrontal cortex
title_full_unstemmed Multiple time-scales of decision-making in the hippocampus and prefrontal cortex
title_short Multiple time-scales of decision-making in the hippocampus and prefrontal cortex
title_sort multiple time-scales of decision-making in the hippocampus and prefrontal cortex
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7993991/
https://www.ncbi.nlm.nih.gov/pubmed/33683201
http://dx.doi.org/10.7554/eLife.66227
work_keys_str_mv AT tangwenbo multipletimescalesofdecisionmakinginthehippocampusandprefrontalcortex
AT shinjustind multipletimescalesofdecisionmakinginthehippocampusandprefrontalcortex
AT jadhavshantanup multipletimescalesofdecisionmakinginthehippocampusandprefrontalcortex