Masked repetition priming using magnetoencephalography.

Brain and Language
Philip J MonahanDavid Poeppel

Abstract

Masked priming is used in psycholinguistic studies to assess questions about lexical access and representation. We present two masked priming experiments using MEG. If the MEG signal elicited by words reflects specific aspects of lexical retrieval, then one expects to identify specific neural correlates of retrieval that are sensitive to priming. To date, the electrophysiological evidence has been equivocal. We report findings from two experiments. Both employed identity priming, where the prime and target are the same lexical item but differ in case (NEWS-news). The first experiment used only forward masking, while the prime in the second experiment was both preceded and followed by a mask (backward masking). In both studies, we find a significant behavioral effect of priming. Using MEG, we identified a component peaking approximately 225 ms post-onset of the target, whose latency was sensitive to repetition. These findings support the notion that properties of the MEG response index specific lexical processes and demonstrate that masked priming can be effectively combined with MEG to investigate the nature of lexical processing.

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Citations

May 12, 2011·Journal of Cognitive Neuroscience·Minna LehtonenDavid Poeppel
Sep 10, 2011·Cognitive, Affective & Behavioral Neuroscience·Eddy J DavelaarDavid E Huber
Aug 25, 2012·Brain and Language·Joanna Morris, Linnaea Stockall
May 31, 2011·Brain and Language·Gwyneth LewisAlec Marantz
Dec 1, 2009·Neuroscience Letters·Jens BölteChristian Dobel

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