Constructing realistic engrams: poststimulus activity of hippocampus and dorsal striatum predicts subsequent episodic memory
Open accessAbstract
Encoding of real-life episodic memory commonly involves integration of information as the episode unfolds. Offline processing immediately following event offset is expected to play a role in encoding the episode into memory. In this study, we examined whether distinct human brain activity time-locked to the offset of short narrative audiovisual episodes could predict subsequent memory for the gist of the episodes. We found that a set of brain regions, most prominently the bilateral hippocampus and the bilateral caudate nucleus, exhibit memory-predictive activity time-locked to the stimulus offset. We propose that offline activity in these regions reflects registration to memory of integrated episodes.
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Hippocampal activity peaks at the offset of video clips.
“Recent work has shown that hippocampal activity peaks at the offset of video clips (Ben-Yakov & Dudai, 2011; Ben-Yakov, Eshel, & Dudai, 2013)”
From Discovering Event Structure in Continuous Narrative Perception and Memory (2017) · cites this paper as Ben-Yakov & Dudai, 2011
The Experiment 2 results (page not specified in our copy) conclude that delayed activity in the bilateral hippocampus is time-locked to clip offset. The paper describes the response as beginning around or shortly after the clip ends, however, not as peaking at that moment. (LLM, conf=0.86)
Experimental — accuracy not yet measuredPrior work has shown that the end of a video clip is associated with increased hippocampal activity, and the magnitude predicts later memory.
“Prior work has shown that the end of a video clip is associated with increased hippocampal activity, and the magnitude of the activity predicts later memory (Ben-Yakov & Dudai, 2011; Ben-Yakov et al., 2013).”
From Discovering Event Structure in Continuous Narrative Perception and Memory (2017) · cites this paper as Ben-Yakov & Dudai, 2011
Hippocampal encoding activity occurs at subtle transitions between events, where events are defined by pattern shifts in high-level cortical regions.
“We demonstrated that the hippocampal encoding activity previously shown to be present at the end of movie clips (Ben-Yakov & Dudai, 2011; Ben-Yakov et al., 2013) and at abrupt switches between stimulus category and task (DuBrow & Davachi, 2016) also occurs at the much more subtle transitions between events (defined by pattern shifts in high-level regions)”
From Discovering Event Structure in Continuous Narrative Perception and Memory (2017) · cites this paper as Ben-Yakov & Dudai, 2011
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- [17]17. Ben-Yakov and Dudai • Offline Encoding of Episodic Memory J. Neurosci., June 15, 2011 • 31(24):9032-9042 • 9041
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- Authors
- Ben-Yakov, A., & Dudai, Y.
- Affiliations
- Weizmann Institute of Science (IL)
- ORCID
- Ben-Yakov, A.
- Venue
- Journal of Neuroscience
- Publisher
- Society for Neuroscience
- Published
- 2011-06-15
- Volume
- 31
- Issue
- 24
- Pages
- 9032-9042
- ISSN
- 0270-6474 (ISSN-L)
- 1529-2401
- PMC
- PMC6622928
- OpenAlex
- W2008440029
- Cited by
- 238
- References
- 65
- Citations by year
- 2026: 14 · 2025: 22 · 2024: 27 · 2023: 17 · 2022: 23 · 2021: 20 · 2020: 15 · 2019: 21 · 2018: 13 · 2017: 15 · 2016: 10 · 2015: 12 · 2014: 9 · 2013: 7 · 2012: 10
- FWCI
- 4.55
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Neuroscience (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Keywords
- episodic memory, memory encoding, hippocampus, dorsal striatum, caudate nucleus, gist memory, offline processing, memory engrams, event integration
- MeSH terms
- Acoustic Stimulation, Adult, Association Learning, Brain Mapping, Corpus Striatum, Female, Hippocampus, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Oxygen, Photic Stimulation, Predictive Value of Tests, Reaction Time, Mental Recall, Statistics as Topic, Young Adult
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