Hemispheric lateralization at different levels of human auditory word processing: A functional magnetic resonance imaging study

Roland Zahn, Walter Huber, Eva Drews, Stephan Erberich, Timo Krings, Klaus Willmes, Michael Schwarz

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We used functional magnetic resonance imaging to disentangle the functional anatomy of brain systems involved in the processing of auditory word form and meaning. Three monitoring tasks on auditory stimuli, aimed at phonetic, lexical and semantic processing, were used. We found no lateralization of temporal lobe activations, when word processing was contrasted versus the complex phonetic task. Bilateral middle temporal activations (Brodmann Area [BA] 21) were attributed to processing of word-form. Areas specific to semantic processing were restricted to the left hemisphere: the posterior middle frontal (BA 9) and posterior parietal (BA 7/40) cortex, as well as an inferior temporal area (BA 20/21). Our data suggest, that left hemispheric dominance for auditory word comprehension occurred at the level of semantic processing. Copyright (C) 2000 Elsevier Science Ireland Ltd.
    Original languageEnglish
    Pages (from-to)195-198
    Number of pages3
    JournalNeuroscience letters
    Volume287
    Issue number3
    DOIs
    Publication statusPublished - 30 Jun 2000

    Keywords

    • Acoustic stimulation
    • Functional magnetic resonance imaging
    • Hemispheric dominance
    • Language
    • Lexical decision
    • Semantics

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