Precuneus stimulation alters the neural dynamics of autobiographical memory retrieval

Autobiographical memory (AM) unfolds over time, but little is known about the dynamics of its retrieval. Space-based models of memory implicate the hippocampus, retrosplenial cortex, and precuneus in early memory computations. Here we used transcranial magnetic stimulation (TMS) and magnetoencephalo...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Melissa Hebscher [verfasserIn] Christine Ibrahim [verfasserIn] Asaf Gilboa [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	Autobiographical memory Precuneus Transcranial magnetic stimulation (TMS) Magnetoencephalography (MEG) Late positive component (LPC) Recollection

Übergeordnetes Werk:	In: NeuroImage - Elsevier, 2020, 210(2020), Seite 116575-
Übergeordnetes Werk:	volume:210 ; year:2020 ; pages:116575-

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1016/j.neuroimage.2020.116575

Katalog-ID:	DOAJ064629007

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callnumber-first	R - Medicine
author	Melissa Hebscher
spellingShingle	Melissa Hebscher misc RC321-571 misc Autobiographical memory misc Precuneus misc Transcranial magnetic stimulation (TMS) misc Magnetoencephalography (MEG) misc Late positive component (LPC) misc Recollection misc Neurosciences. Biological psychiatry. Neuropsychiatry Precuneus stimulation alters the neural dynamics of autobiographical memory retrieval
authorStr	Melissa Hebscher
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topic_title	RC321-571 Precuneus stimulation alters the neural dynamics of autobiographical memory retrieval Autobiographical memory Precuneus Transcranial magnetic stimulation (TMS) Magnetoencephalography (MEG) Late positive component (LPC) Recollection
topic	misc RC321-571 misc Autobiographical memory misc Precuneus misc Transcranial magnetic stimulation (TMS) misc Magnetoencephalography (MEG) misc Late positive component (LPC) misc Recollection misc Neurosciences. Biological psychiatry. Neuropsychiatry
topic_unstemmed	misc RC321-571 misc Autobiographical memory misc Precuneus misc Transcranial magnetic stimulation (TMS) misc Magnetoencephalography (MEG) misc Late positive component (LPC) misc Recollection misc Neurosciences. Biological psychiatry. Neuropsychiatry
topic_browse	misc RC321-571 misc Autobiographical memory misc Precuneus misc Transcranial magnetic stimulation (TMS) misc Magnetoencephalography (MEG) misc Late positive component (LPC) misc Recollection misc Neurosciences. Biological psychiatry. Neuropsychiatry
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title	Precuneus stimulation alters the neural dynamics of autobiographical memory retrieval
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title_full	Precuneus stimulation alters the neural dynamics of autobiographical memory retrieval
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title_sort	precuneus stimulation alters the neural dynamics of autobiographical memory retrieval
callnumber	RC321-571
title_auth	Precuneus stimulation alters the neural dynamics of autobiographical memory retrieval
abstract	Autobiographical memory (AM) unfolds over time, but little is known about the dynamics of its retrieval. Space-based models of memory implicate the hippocampus, retrosplenial cortex, and precuneus in early memory computations. Here we used transcranial magnetic stimulation (TMS) and magnetoencephalography (MEG) to investigate the causal role of the precuneus in the dynamics of AM retrieval. During early memory search and construction, precuneus stimulation compared to vertex stimulation led to delayed evoked neural activity within 1000 ms after cue presentation. During later memory elaboration, stimulation led to decreased sustained positivity. We further identified a parietal late positive component during memory elaboration, the amplitude of which was associated with spatial perspective during recollection. This association was disrupted following precuneus stimulation, suggesting that this region plays an important role in the neural representation of spatial perspective during AM. These findings demonstrate a causal role for the precuneus in early AM retrieval, during memory search before a specific memory is accessed, and in spatial context reinstatement during the initial stages of memory elaboration and re-experiencing. By utilizing the high temporal resolution of MEG and the causality of TMS, this study helps clarify the neural correlates of early naturalistic memory retrieval.
abstractGer	Autobiographical memory (AM) unfolds over time, but little is known about the dynamics of its retrieval. Space-based models of memory implicate the hippocampus, retrosplenial cortex, and precuneus in early memory computations. Here we used transcranial magnetic stimulation (TMS) and magnetoencephalography (MEG) to investigate the causal role of the precuneus in the dynamics of AM retrieval. During early memory search and construction, precuneus stimulation compared to vertex stimulation led to delayed evoked neural activity within 1000 ms after cue presentation. During later memory elaboration, stimulation led to decreased sustained positivity. We further identified a parietal late positive component during memory elaboration, the amplitude of which was associated with spatial perspective during recollection. This association was disrupted following precuneus stimulation, suggesting that this region plays an important role in the neural representation of spatial perspective during AM. These findings demonstrate a causal role for the precuneus in early AM retrieval, during memory search before a specific memory is accessed, and in spatial context reinstatement during the initial stages of memory elaboration and re-experiencing. By utilizing the high temporal resolution of MEG and the causality of TMS, this study helps clarify the neural correlates of early naturalistic memory retrieval.
abstract_unstemmed	Autobiographical memory (AM) unfolds over time, but little is known about the dynamics of its retrieval. Space-based models of memory implicate the hippocampus, retrosplenial cortex, and precuneus in early memory computations. Here we used transcranial magnetic stimulation (TMS) and magnetoencephalography (MEG) to investigate the causal role of the precuneus in the dynamics of AM retrieval. During early memory search and construction, precuneus stimulation compared to vertex stimulation led to delayed evoked neural activity within 1000 ms after cue presentation. During later memory elaboration, stimulation led to decreased sustained positivity. We further identified a parietal late positive component during memory elaboration, the amplitude of which was associated with spatial perspective during recollection. This association was disrupted following precuneus stimulation, suggesting that this region plays an important role in the neural representation of spatial perspective during AM. These findings demonstrate a causal role for the precuneus in early AM retrieval, during memory search before a specific memory is accessed, and in spatial context reinstatement during the initial stages of memory elaboration and re-experiencing. By utilizing the high temporal resolution of MEG and the causality of TMS, this study helps clarify the neural correlates of early naturalistic memory retrieval.
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title_short	Precuneus stimulation alters the neural dynamics of autobiographical memory retrieval
url	https://doi.org/10.1016/j.neuroimage.2020.116575 https://doaj.org/article/8dd24f072cb84885b1900eda01df2ddb http://www.sciencedirect.com/science/article/pii/S1053811920300628 https://doaj.org/toc/1095-9572
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up_date	2024-07-03T23:44:31.317Z
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These findings demonstrate a causal role for the precuneus in early AM retrieval, during memory search before a specific memory is accessed, and in spatial context reinstatement during the initial stages of memory elaboration and re-experiencing. 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Precuneus stimulation alters the neural dynamics of autobiographical memory retrieval

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