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- Title
Reinstatement of Event Details during Episodic Simulation in the Hippocampus.
- Authors
Thakral, Preston P; Madore, Kevin P; Addis, Donna Rose; Schacter, Daniel L
- Abstract
According to the constructive episodic simulation hypothesis, episodic simulation (i.e., imagining specific novel future episodes) draws on some of the same neurocognitive processes that support episodic memory (i.e., recalling specific past episodes). Episodic retrieval supports the ability to simulate future experiences by providing access to episodic details (e.g., the people and locations that comprise memories) that can be recombined in new ways. In the current functional neuroimaging study, we test this hypothesis by examining whether the hippocampus, a region implicated in the reinstatement of episodic information during memory, supports reinstatement of episodic information during simulation. Employing a multivoxel pattern similarity analysis, we interrogated the similarity between hippocampal neural patterns during memory and simulation at the level of individual event details. Our findings indicate that the hippocampus supports the reinstatement of detail-specific information from episodic memory during simulation, with the level of reinstatement contributing to the subjective experience of simulated details.
- Publication
Cerebral Cortex, 2020, Vol 30, Issue 4, p2321
- ISSN
1047-3211
- Publication type
Article
- DOI
10.1093/cercor/bhz242