Alpha/Beta oscillations indicate inhibition of interfering visual memories

Waldhauser, Gerd T.; Johansson, Mikael; Hanslmayr, Simon

Alpha/Beta oscillations indicate inhibition of interfering visual memories

Dateien

Waldhauser_Oscillations.pdfGröße: 1.79 MBDownloads: 304

Datum

2012

Autor:innen

Waldhauser, Gerd T.

Johansson, Mikael

Hanslmayr, Simon

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Psychologie
Zukunftskolleg

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Journal of Neuroscience. 2012, 32(6), pp. 1953-1961. ISSN 0270-6474. eISSN 1529-2401. Available under: doi: 10.1523/JNEUROSCI.4201-11.2012

Zusammenfassung

Selective retrieval of a specific target memory often leads to the forgetting of related but irrelevant memories. Current cognitive theory states that such retrieval-induced forgetting arises due to inhibition of competing memory traces. To date, however, direct neural evidence for this claim has not been forthcoming. Studies on selective attention suggest that cortical inhibition is mediated by increased brain oscillatory activity in the alpha/beta frequency band. The present study, testing 18 human subjects, investigated whether these mechanisms can be generalized to selective memory retrieval in which competing memories interfere with the retrieval of a target memory. Our experiment was designed so that each cue used to search memory was associated with a target memory and a competitor memorystored in separate brain hemispheres. Retrieval-induced forgetting was observed in a condition in which the competitor memory interfered with target retrieval. Increased oscillatory alpha/beta power was observed over the hemisphere housing the sensory representation of the competitor memory trace and predicted the amount of retrieval-induced forgetting in the subsequent memory test. These results provide the first direct evidence for inhibition of competing memories during episodic memory retrieval and suggest that competitive retrieval is governed by inhibitory mechanisms similar to those employed in selective attention.

Fachgebiet (DDC)

150 Psychologie

Zitieren

ISO 690

WALDHAUSER, Gerd T., Mikael JOHANSSON, Simon HANSLMAYR, 2012. Alpha/Beta oscillations indicate inhibition of interfering visual memories. In: Journal of Neuroscience. 2012, 32(6), pp. 1953-1961. ISSN 0270-6474. eISSN 1529-2401. Available under: doi: 10.1523/JNEUROSCI.4201-11.2012

BibTex

@article{Waldhauser2012-02-08Alpha-18731,
  year={2012},
  doi={10.1523/JNEUROSCI.4201-11.2012},
  title={Alpha/Beta oscillations indicate inhibition of interfering visual memories},
  number={6},
  volume={32},
  issn={0270-6474},
  journal={Journal of Neuroscience},
  pages={1953--1961},
  author={Waldhauser, Gerd T. and Johansson, Mikael and Hanslmayr, Simon}
}

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