July 18, 2023 Dataset Open Access

Anna-Maria Grob; Hendrik Heinbockel; Branka Milivojevic; Christian Doeller; Lars Schwabe

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  <identifier identifierType="DOI">10.25592/uhhfdm.12928</identifier>
  <creators>
    <creator>
      <creatorName>Anna-Maria Grob</creatorName>
      <affiliation>Department of Cognitive Psychology, Institute of Psychology, Universität Hamburg, 20146 Hamburg, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Hendrik Heinbockel</creatorName>
      <affiliation>Department of Cognitive Psychology, Institute of Psychology, Universität Hamburg, 20146 Hamburg, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Branka Milivojevic</creatorName>
      <affiliation>Radboud University, Donders Institute for Brain, Cognition and Behaviour, 6525 AJ Nijmegen, the Netherlands</affiliation>
    </creator>
    <creator>
      <creatorName>Christian Doeller</creatorName>
      <affiliation>Max-Planck-Insitute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany, Germany; Kavli Institute for Systems Neuroscience, Centre for Neural Computation, The Egil and Pauline Braathen and Fred Kavli Centre for Cortical Microcircuits, Jebsen Centre for Alzheimer's Disease, Norwegian University of Science and Technology, 7491 Trondheim, Norway</affiliation>
    </creator>
    <creator>
      <creatorName>Lars Schwabe</creatorName>
      <affiliation>Department of Cognitive Psychology, Institute of Psychology, Universität Hamburg, 20146 Hamburg, Germany</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Causal role of the angular gyrus in insight-driven memory reconfiguration</title>
  </titles>
  <publisher>Universität Hamburg</publisher>
  <publicationYear>2023</publicationYear>
  <dates>
    <date dateType="Issued">2023-07-18</date>
  </dates>
  <resourceType resourceTypeGeneral="Dataset"/>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://www.fdr.uni-hamburg.de/record/12928</alternateIdentifier>
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  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsPartOf">10.25592/uhhfdm.12927</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Maintaining an accurate model of the world relies on our ability to update memory representations in light of new information. Previous research on the integration of new information into memory mainly focused on the hippocampus. Here, we hypothesized that the angular gyrus, known to be involved in episodic memory and imagination, plays a pivotal role in the insight-driven reconfiguration of memory representations. To test this hypothesis, participants received continuous theta burst stimulation (cTBS) inhibiting the left angular gyrus or sham stimulation before gaining insight into the relationship between previously separate life-like animated events in a narrative-insight task. During this task, participants also underwent EEG recording and their memory for linked and non-linked events was assessed shortly thereafter. Our results show that cTBS to the angular gyrus decreased memory for the linking events and reduced the memory advantage for linked relative to non-linked events. At the neural level, cTBS-induced angular gyrus inhibition reduced centro-temporal coupling with frontal regions and abolished insight-induced neural representational changes for events linked via imagination, indicating impaired memory reconfiguration. Further, the cTBS group showed representational changes for non-linked events that resembled the patterns observed in the sham group for the linked events, suggesting failed pruning of the narrative in memory. Together, our findings demonstrate a causal role of the left angular gyrus in insight-related memory reconfigurations.&lt;/p&gt;</description>
  </descriptions>
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