Dynamic emotional states shape the episodic structure of memory

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 17, 2023

Abstract Human emotions fluctuate over time. However, it is unclear how these shifting emotional states influence the organization of episodic memory. Here, we examine emotion dynamics transform experiences into memorable events. Using custom musical pieces and a dynamic emotion-tracking tool to elicit measure temporal fluctuations in felt valence arousal, our results demonstrate that memory organized around states. While listening music, between different valences bias encoding process toward integration or separation. Whereas large absolute negative shift helps segment memories episodes, positive binds sequential representations together. Both discrete shifts music-evoked arousal also enhance delayed item source for concurrent neutral items, signaling beginning new These findings are line with idea rise fall can sculpt unfolding meaningful

Language: Английский

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Human hippocampal CA3 damage disrupts both recent and remote episodic memories

eLife, Journal Year: 2020, Volume and Issue: 9

Published: Jan. 24, 2020

Neocortical-hippocampal interactions support new episodic (event) memories, but there is conflicting evidence about the dependence of remote memories on hippocampus. In line with systems consolidation and computational theories memory, from model organisms suggests that cornu ammonis 3 (CA3) hippocampal subfield supports recent, not remote, retrieval. this study, we demonstrated recent were susceptible to a loss detail in human participants focal bilateral damage CA3. Graph theoretic analyses 7.0-Tesla resting-state fMRI data revealed CA3 disrupted functional integration across medial temporal lobe (MTL) subsystem default network. The MTL regions was predictive autobiographical retrieval performance. We conclude necessary for long after their initial acquisition network important memory

Language: Английский

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Zooming In and Out on One's Life: Autobiographical Representations at Multiple Time Scales

Journal of Cognitive Neuroscience, Journal Year: 2020, Volume and Issue: 32(11), P. 2037 - 2055

Published: March 12, 2020

Abstract The ability to decouple from the present environment and explore other times is a central feature of human mind. Research in cognitive psychology neuroscience has shown that personal past future represented at multiple timescales levels resolution, broad lifetime periods span years short-time slices experience seconds. Here, I review this evidence propose theoretical framework for understanding mental time travel as capacity flexibly navigate hierarchical layers autobiographical representations. On view, thoughts rely on two main systems—event simulation knowledge—that allow us represent experiential contents are decoupled sensory input place these timeline scaffolded conceptual knowledge content structure our life. neural basis architecture discussed, emphasizing possible role medial pFC integrating representations service travel.

Language: Английский

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Nucleus reuniens mediates the extinction of contextual fear conditioning

Behavioural Brain Research, Journal Year: 2019, Volume and Issue: 374, P. 112114 - 112114

Published: July 25, 2019

Language: Английский

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The Hippocampal Horizon: Constructing and Segmenting Experience for Episodic Memory

Neuroscience & Biobehavioral Reviews, Journal Year: 2021, Volume and Issue: 132, P. 181 - 196

Published: Nov. 24, 2021

Language: Английский

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