Neuromagnetic evidence for the timing of lexical activation: An MEG component sensitive to phonotactic probability but not to neighborhood density

Liina Pylkkänen, Andrew Stringfellow, Alec Marantz

Research output: Contribution to journalArticle

Abstract

Evidence from electrophysiological measures such as ERPs (event-related potentials) and MEG (magnetoencephalography) suggest that the first evoked brain response component sensitive to stimulus properties affecting reaction times in word recognition tasks occurs at 300-400 ms. The present study used the stimulus manipulation of Vitevich and Luce (1999) to investigate whether the M350, an MEG response component peaking at 300-400 ms, reflects lexical or postlexical processing. Stimuli were simultaneously varied in phonotactic probability, which facilitates lexical activation, and in phonological neighborhood density, which inhibits the lexical decision process. The present results indicate that the M350 shows facilitation by phonotactic probability rather than inhibition by neighborhood density. Thus the M350 cannot be a postlexical component.

Original languageEnglish (US)
Pages (from-to)666-678
Number of pages13
JournalBrain and Language
Volume81
Issue number1-3
DOIs
StatePublished - 2002

Fingerprint

Magnetoencephalography
activation
stimulus
Evoked Potentials
Reaction Time
evidence
manipulation
brain
Brain
event
Phonotactic Probability
Stimulus
Lexical Activation
Neighborhood Density
Post-lexical
Inhibition (Psychology)
Recognition (Psychology)

Keywords

  • Lexical access
  • Lexical decision
  • M350
  • MEG
  • N400
  • Neighborhood effects
  • Phonotactic probability

ASJC Scopus subject areas

  • Arts and Humanities(all)
  • Language and Linguistics
  • Neuroscience(all)
  • Psychology(all)
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology

Cite this

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title = "Neuromagnetic evidence for the timing of lexical activation: An MEG component sensitive to phonotactic probability but not to neighborhood density",
abstract = "Evidence from electrophysiological measures such as ERPs (event-related potentials) and MEG (magnetoencephalography) suggest that the first evoked brain response component sensitive to stimulus properties affecting reaction times in word recognition tasks occurs at 300-400 ms. The present study used the stimulus manipulation of Vitevich and Luce (1999) to investigate whether the M350, an MEG response component peaking at 300-400 ms, reflects lexical or postlexical processing. Stimuli were simultaneously varied in phonotactic probability, which facilitates lexical activation, and in phonological neighborhood density, which inhibits the lexical decision process. The present results indicate that the M350 shows facilitation by phonotactic probability rather than inhibition by neighborhood density. Thus the M350 cannot be a postlexical component.",
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author = "Liina Pylkk{\"a}nen and Andrew Stringfellow and Alec Marantz",
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AU - Stringfellow, Andrew

AU - Marantz, Alec

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AB - Evidence from electrophysiological measures such as ERPs (event-related potentials) and MEG (magnetoencephalography) suggest that the first evoked brain response component sensitive to stimulus properties affecting reaction times in word recognition tasks occurs at 300-400 ms. The present study used the stimulus manipulation of Vitevich and Luce (1999) to investigate whether the M350, an MEG response component peaking at 300-400 ms, reflects lexical or postlexical processing. Stimuli were simultaneously varied in phonotactic probability, which facilitates lexical activation, and in phonological neighborhood density, which inhibits the lexical decision process. The present results indicate that the M350 shows facilitation by phonotactic probability rather than inhibition by neighborhood density. Thus the M350 cannot be a postlexical component.

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