Lateralization of lexical codes in auditory word recognition |
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| Authors: | Steven G. Zecker Michael K. Tanenhaus Lesley AldermanLynne Siqueland |
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| Affiliation: | 1. Department of Language and Literature, Max Planck Institute for Empirical Aesthetics, Grüneburgweg 14, 60322 Frankfurt am Main, Germany;2. Experimental Psychology Unit, Helmut Schmidt University, University of the Federal Armed Forces, Holstenhofweg 85, 22043 Hamburg, Germany;1. Max Planck Institute for Empirical Aesthetics, Frankfurt am Main, Germany;2. Department of Education and Psychology, Freie Universität Berlin, Germany;3. Research Cluster ‘Languages of Emotion’, Freie Universität Berlin, Germany;4. Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany;5. School of Psychological Sciences, University of Manchester, Manchester, UK;6. Dahlem Institute for Neuroimaging of Emotion (D.I.N.E.), Germany |
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| Abstract: | Three experiments examined the lateralization of lexical codes in auditory word recognition. In Experiment 1 a word rhyming with a binaurally presented cue word was detected faster when the cue and target were spelled similarly than when they were spelled differently. This orthography effect was larger when the target was presented to the right ear than when it was presented to the left ear. Experiment 2 replicated the interaction between ear of presentation and orthography effect when the cue and target were spoken in different voices. In Experiment 3, subjects made lexical decisions to pairs of stimuli presented to the left or the right ear. Lexical decision times and the amount of facilitation which obtained when the target stimuli were semantically related words did not differ as a function of ear of presentation. The results suggest that the semantic, phonological, and orthographic codes for a word are represented in each hemisphere; however, orthographic and phonological representations are integrated only in the left hemisphere. |
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