Exercise accelerates place cell representational drift.
Exercise accelerates place cell representational drift.
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运动会加速位置细胞表征漂移。
DOI:
10.1016/j.cub.2022.12.033
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Frankland,PaulW
中科院分区:
文献类型:
--
作者:
deSnoo,MitchellL;Miller,AdamMP;Ramsaran,AdamI;Josselyn,SheenaA;Frankland,PaulW
Stable neural ensembles are often thought to underlie stable learned behaviors and memory. Recent longitudinal experiments, however, that tracked the activity of the same neurons over days to weeks have shown that neuronal activity patterns can change over extended timescales even if behaviors remain the same — a phenomenon termed representational drift1. We have tested whether neural circuit remodeling, defined as any change in structural connectivity, contributes to representational drift. To do this, we tracked how hippocampal CA1 spatial representations of a familiar environment change with time in conventionally housed mice relative to mice housed with a running wheel. Voluntary exercise is an environmental stimulus that promotes hippocampal circuit remodeling, primarily via promoting adult neurogenesis in the dentate gyrus. Adult neurogenesis alters structural connectivity patterns, as the integration of adult-generated granule cells (abGCs) is a competitive process where new input–output synaptic connections may co-exist and/or even replace existing synaptic connections2. Comparing the spatial activity of downstream hippocampal CA1 place cells in the same familiar environment over two weeks, we found that the activity of place cells in exercise mice exhibited accelerated representational drift compared to control mice, suggesting that hippocampal circuit remodeling may indeed drive representational drift.
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DOI:
10.1210/jcem.86.2.7193
发表时间:
2001
期刊:
The Journal of clinical endocrinology and metabolism
影响因子:
--
作者:
Y. Boirie;P. Gachon;N. Cordat;P. Ritz;B. Beaufrère
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B. Beaufrère
DOI:
10.1113/jphysiol.2005.097154
发表时间:
2005
期刊:
The Journal of Physiology
影响因子:
--
作者:
A. Rose;C. Broholm;Kristian Kiillerich;S. G. Finn;C. Proud;M. Rider;E. Richter;B. Kiens
通讯作者:
B. Kiens
影响因子:
3.9
作者:
G. Welsh;A. Loughlin;E. Foulstone;N. Price;C. Proud
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C. Proud
影响因子:
3.3
作者:
M. Lewis
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M. Lewis
DOI:
10.1152/ajpendo.00415.2005
发表时间:
2006-04-01
影响因子:
5.1
作者:
Cuthbertson, DJ;Babraj, J;Rennie, M
通讯作者:
Rennie, M