Mnemonic construction and representation of temporal structure in the hippocampal formation.
Mnemonic construction and representation of temporal structure in the hippocampal formation.
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DOI:
10.1038/s41467-022-30984-3
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发表时间:
2022-06-23
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
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The hippocampal-entorhinal region supports memory for episodic details, such as temporal relations of sequential events, and mnemonic constructions combining experiences for inferential reasoning. However, it is unclear whether hippocampal event memories reflect temporal relations derived from mnemonic constructions, event order, or elapsing time, and whether these sequence representations generalize temporal relations across similar sequences. Here, participants mnemonically constructed times of events from multiple sequences using infrequent cues and their experience of passing time. After learning, event representations in the anterior hippocampus reflected temporal relations based on constructed times. Temporal relations were generalized across sequences, revealing distinct representational formats for events from the same or different sequences. Structural knowledge about time patterns, abstracted from different sequences, biased the construction of specific event times. These findings demonstrate that mnemonic construction and the generalization of relational knowledge combine in the hippocampus, consistent with the simulation of scenarios from episodic details and structural knowledge. Activity patterns in the hippocampus resemble temporal relations of learned event sequences. Here, the authors show that these relational memories arise through mnemonic construction and are generalized to reflect the temporal event structure.
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影响因子:
3.8
作者:
Barr DJ
通讯作者:
Barr DJ
影响因子:
7.7
作者:
Bellmund, Jacob L. S.;Deuker, Lorena;Doeller, Christian F.
通讯作者:
Doeller, Christian F.
DOI:
10.1080/00949659908811936
发表时间:
1999-01-01
影响因子:
1.2
作者:
Anderson, MJ;Legendre, P
通讯作者:
Legendre, P
影响因子:
--
作者:
Allen, Micah;Poggiali, Davide;Kievit, Rogier A
通讯作者:
Kievit, Rogier A
影响因子:
25
作者:
Barron, Helen C.;Dolan, Raymond J.;Behrens, Timothy E. J.
通讯作者:
Behrens, Timothy E. J.