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Neuroimage. 2014 May 1;91:252-61. doi: 10.1016/j.neuroimage.2014.01.041. Epub 2014 Jan 30.

Lexical access and evoked traveling alpha waves.

Author information

  • 1Department of Physiological Psychology, University of Salzburg, Austria.
  • 2Department of Physiological Psychology, University of Salzburg, Austria. Electronic address: Wolfgang.Klimesch@sbg.ac.at.

Abstract

Retrieval from semantic memory is usually considered within a time window around 300-600ms. Here we suggest that lexical access already occurs at around 100ms. This interpretation is based on the finding that semantically rich and frequent words exhibit a significantly shorter topographical latency difference between the site with the shortest P1 latency (leading site) and that with the longest P1 latency (trailing site). This latency difference can be described in terms of an evoked traveling alpha wave as was already shown in earlier studies.

Copyright © 2014 The Authors. Published by Elsevier Inc. All rights reserved.

KEYWORDS:

Alpha; Lexical access; P1; Semantic memory; Traveling-wave

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