Brain Oscillations Mediate Successful Suppression of Unwanted Memories

Waldhauser, Gerd T.; Bäuml, Karl-Heinz T.; Hanslmayr, Simon

Brain Oscillations Mediate Successful Suppression of Unwanted Memories

Dateien

Waldhauser_0-317618.pdfGröße: 470.46 KBDownloads: 210

Datum

2015

Autor:innen

Waldhauser, Gerd T.

Bäuml, Karl-Heinz T.

Hanslmayr, Simon

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Cerebral Cortex. 2015, 25(11), pp. 4180-4190. ISSN 1047-3211. eISSN 1460-2199. Available under: doi: 10.1093/cercor/bhu138

Zusammenfassung

To avoid thinking of unwanted memories can be a successful strategy to forget. Studying brain oscillations as measures of local and inter-regional processing, we shed light on the neural dynamics underlying memory suppression. Employing the think/no-think paradigm, 24 healthy human subjects repeatedly retrieved (think condition) or avoided thinking of (no-think condition) a previously learned target memory upon being presented with a reminder stimulus. Think and no-think instructions were delivered by means of a precue that preceded the reminder by 1 s. This allowed us to segregate neural control mechanisms that were triggered by the precue from the effect of suppression on target memory networks after presentation of the reminder. Control effects were reflected in increased power in the theta (5–9 Hz) frequency band in the medial and dorsolateral prefrontal cortex and higher long-range alpha (10–14 Hz) phase synchronization. Successful suppression of target memories was reflected in a decrease of theta oscillatory power in the medial temporal lobes and reduced long-range theta phase synchronization emerged after presentation of the reminder. Our results suggest that intentional memory suppression correlates with increased neural communication in cognitive control networks that act in down-regulating local and inter-regional processing related to memory retrieval.

Fachgebiet (DDC)

150 Psychologie

Schlagwörter

brain oscillations, forgetting, inhibitory control, memory suppression, think/no-think

Zitieren

ISO 690

WALDHAUSER, Gerd T., Karl-Heinz T. BÄUML, Simon HANSLMAYR, 2015. Brain Oscillations Mediate Successful Suppression of Unwanted Memories. In: Cerebral Cortex. 2015, 25(11), pp. 4180-4190. ISSN 1047-3211. eISSN 1460-2199. Available under: doi: 10.1093/cercor/bhu138

BibTex

@article{Waldhauser2015Brain-33167,
  year={2015},
  doi={10.1093/cercor/bhu138},
  title={Brain Oscillations Mediate Successful Suppression of Unwanted Memories},
  number={11},
  volume={25},
  issn={1047-3211},
  journal={Cerebral Cortex},
  pages={4180--4190},
  author={Waldhauser, Gerd T. and Bäuml, Karl-Heinz T. and Hanslmayr, Simon}
}

RDF

<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/33167">
    <dc:contributor>Hanslmayr, Simon</dc:contributor>
    <dc:creator>Hanslmayr, Simon</dc:creator>
    <dcterms:abstract xml:lang="eng">To avoid thinking of unwanted memories can be a successful strategy to forget. Studying brain oscillations as measures of local and inter-regional processing, we shed light on the neural dynamics underlying memory suppression. Employing the think/no-think paradigm, 24 healthy human subjects repeatedly retrieved (think condition) or avoided thinking of (no-think condition) a previously learned target memory upon being presented with a reminder stimulus. Think and no-think instructions were delivered by means of a precue that preceded the reminder by 1 s. This allowed us to segregate neural control mechanisms that were triggered by the precue from the effect of suppression on target memory networks after presentation of the reminder. Control effects were reflected in increased power in the theta (5–9 Hz) frequency band in the medial and dorsolateral prefrontal cortex and higher long-range alpha (10–14 Hz) phase synchronization. Successful suppression of target memories was reflected in a decrease of theta oscillatory power in the medial temporal lobes and reduced long-range theta phase synchronization emerged after presentation of the reminder. Our results suggest that intentional memory suppression correlates with increased neural communication in cognitive control networks that act in down-regulating local and inter-regional processing related to memory retrieval.</dcterms:abstract>
    <dcterms:title>Brain Oscillations Mediate Successful Suppression of Unwanted Memories</dcterms:title>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/43"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/33167"/>
    <dcterms:issued>2015</dcterms:issued>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-03-01T14:04:55Z</dcterms:available>
    <dc:creator>Bäuml, Karl-Heinz T.</dc:creator>
    <dc:rights>terms-of-use</dc:rights>
    <dc:language>eng</dc:language>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/33167/3/Waldhauser_0-317618.pdf"/>
    <dc:creator>Waldhauser, Gerd T.</dc:creator>
    <dc:contributor>Waldhauser, Gerd T.</dc:contributor>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/33167/3/Waldhauser_0-317618.pdf"/>
    <dc:contributor>Bäuml, Karl-Heinz T.</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-03-01T14:04:55Z</dc:date>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/43"/>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja