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Modeling the meaning of words: Neural correlates of abstract and concrete noun processing

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Author

Summary, in English

We present a model relating analysis of abstract and concrete word meaning in terms of semantic features and contextual frames within a general framework of neurocognitive information processing. The approach taken here assumes concrete noun meanings to be intimately related to sensory feature constellations. These features are processed by posterior sensory regions of the brain, e.g. the occipital lobe, which handles visual information. The interpretation of abstract nouns, however, is likely to be more dependent on semantic frames and linguistic context. A greater involvement of more anteriorly located, perisylvian brain areas has previously been found for the processing of abstract words. In the present study, a word association test was carried out in order to compare semantic processing in healthy subjects (n=12) with subjects with aphasia due to perisylvian lesions (n=3) and occipital lesions (n=1). The word associations were coded into different categories depending on their semantic content. A double dissociation was found, where, compared to the controls, the perisylvian aphasic subjects had problems associating to abstract nouns and produced fewer semantic frame-based associations, whereas the occipital aphasic subject showed disturbances in concrete noun processing and made fewer semantic feature based associations.

Publishing year

2011

Language

English

Pages

455-478

Publication/Series

Acta Neurobiologiae Experimentalis

Volume

71

Issue

4

Document type

Journal article

Publisher

Polish Neuroscience Society - PTBUN, Nencki Institute of Experimental Biology

Topic

  • General Language Studies and Linguistics

Keywords

  • mental lexicon
  • abstract words
  • concrete words
  • semantic frames
  • semantic features
  • neurocognition
  • aphasia

Status

Published

Project

  • Abstract, emotional and concrete words in the mental lexicon

ISBN/ISSN/Other

  • ISSN: 0065-1400