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The spatiotemporal dynamics of autobiographical memory: neural correlates of recall, emotional intensity, and reliving.

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Date
2008-01
Authors
Daselaar, Sander M
Rice, Heather J
Greenberg, Daniel L
Cabeza, Roberto
LaBar, Kevin S
Rubin, David C
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Abstract
We sought to map the time course of autobiographical memory retrieval, including brain regions that mediate phenomenological experiences of reliving and emotional intensity. Participants recalled personal memories to auditory word cues during event-related functional magnetic resonance imaging (fMRI). Participants pressed a button when a memory was accessed, maintained and elaborated the memory, and then gave subjective ratings of emotion and reliving. A novel fMRI approach based on timing differences capitalized on the protracted reconstructive process of autobiographical memory to segregate brain areas contributing to initial access and later elaboration and maintenance of episodic memories. The initial period engaged hippocampal, retrosplenial, and medial and right prefrontal activity, whereas the later period recruited visual, precuneus, and left prefrontal activity. Emotional intensity ratings were correlated with activity in several regions, including the amygdala and the hippocampus during the initial period. Reliving ratings were correlated with activity in visual cortex and ventromedial and inferior prefrontal regions during the later period. Frontopolar cortex was the only brain region sensitive to emotional intensity across both periods. Results were confirmed by time-locked averages of the fMRI signal. The findings indicate dynamic recruitment of emotion-, memory-, and sensory-related brain regions during remembering and their dissociable contributions to phenomenological features of the memories.
Type
Journal article
Subject
Adolescent
Adult
Affect
Association Learning
Autobiography as Topic
Brain
Emotions
Female
Humans
Imagination
Magnetic Resonance Imaging
Male
Mental Recall
Self Concept
Permalink
https://hdl.handle.net/10161/10090
Published Version (Please cite this version)
10.1093/cercor/bhm048
Publication Info
Daselaar, Sander M; Rice, Heather J; Greenberg, Daniel L; Cabeza, Roberto; LaBar, Kevin S; & Rubin, David C (2008). The spatiotemporal dynamics of autobiographical memory: neural correlates of recall, emotional intensity, and reliving. Cereb Cortex, 18(1). pp. 217-229. 10.1093/cercor/bhm048. Retrieved from https://hdl.handle.net/10161/10090.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Cabeza

Roberto Cabeza

Professor of Psychology and Neuroscience
My laboratory investigates the neural correlates of memory and cognition in young and older adults using fMRI. We have three main lines of research: First, we distinguish the neural correlates of various episodic memory processes. For example, we have compared encoding vs. retrieval, item vs. source memory, recall vs. recognition, true vs. false memory, and emotional vs. nonemotional memory. We are particularly interested in the contribution of prefrontal cortex (PFC) and medial temporal lobe (M
LaBar

Kevin S. LaBar

Professor of Psychology and Neuroscience
My research focuses on understanding how emotional events modulate cognitive processes in the human brain. We aim to identify brain regions that encode the emotional properties of sensory stimuli, and to show how these regions interact with neural systems supporting social cognition, executive control, and learning and memory. To achieve this goal, we use a variety of cognitive neuroscience techniques in human subject populations. These include psychophysiological monitoring, functional magnetic
Rubin

David C. Rubin

Juanita M. Kreps Distinguished Professor of Psychology and Neuroscience
  For .pdfs of all publications click here  My main research interest has been in long-term memory, especially for complex (or "real-world") stimuli. This work includes the study of autobiographical memory and oral tra
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