Evaluating hippocampal replay without a ground truth
Evaluating hippocampal replay without a ground truth
复制标题
在没有基本事实的情况下评估海马体重放
DOI:
10.1101/2022.12.12.520040
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Takigawa M
中科院分区:
文献类型:
--
作者:
Takigawa M
During rest and sleep, memory traces replay in the brain. The dialogue between brain regions during replay is thought to stabilize labile memory traces for long-term storage. However, because replay is an internally driven, spontaneous phenomenon, it does not have a ground truth-an external reference that can validate whether a memory has truly been replayed. Instead, replay detection is based on the similarity between the sequential neural activity comprising the replay event and the corresponding template of neural activity generated during active locomotion. If the statistical likelihood of observing such a match by chance is sufficiently low, the candidate replay event is inferred to be replaying that specific memory. However, without the ability to evaluate whether replay detection methods are successfully detecting true events and correctly rejecting non-events, the evaluation and comparison of different replay methods is challenging. To circumvent this problem, we present a new framework for evaluating replay, tested using hippocampal neural recordings from rats exploring two novel linear tracks. Using this two-track paradigm, our framework selects replay events based on their temporal fidelity (sequence-based detection), and evaluates the detection performance using each event’s track discriminability, where sequenceless decoding across both tracks is used to quantify whether the track replaying is also the most likely track being reactivated.
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影响因子:
56.9
作者:
Ralitsa Todorova;Michaël Zugaro
通讯作者:
Michaël Zugaro
影响因子:
25
作者:
Olafsdottir, H. Freyja;Carpenter, Francis;Barry, Caswell
通讯作者:
Barry, Caswell
影响因子:
16.2
作者:
Ólafsdóttir HF;Carpenter F;Barry C
通讯作者:
Barry C
影响因子:
25
作者:
Carey, Alyssa A.;Tanaka, Youki;van Der Meer, Matthijs A. A.
通讯作者:
van Der Meer, Matthijs A. A.
DOI:
10.1098/rstb.2019.0238
发表时间:
2020
期刊:
Philosophical Transactions of the Royal Society B: Biological Sciences
影响因子:
--
作者:
van der Meer, Matthijs A.;Kemere, Caleb;Diba, Kamran
通讯作者:
Diba, Kamran