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Listening to speech activates motor areas involved in speech production

Nature Neurosciencevolume 7pages701702 (2004) | Download Citation

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Abstract

To examine the role of motor areas in speech perception, we carried out a functional magnetic resonance imaging (fMRI) study in which subjects listened passively to monosyllables and produced the same speech sounds. Listening to speech activated bilaterally a superior portion of ventral premotor cortex that largely overlapped a speech production motor area centered just posteriorly on the border of Brodmann areas 4a and 6, which we distinguished from a more ventral speech production area centered in area 4p. Our findings support the view that the motor system is recruited in mapping acoustic inputs to a phonetic code.

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Acknowledgements

We thank K. Amunts for providing cytoarchitectonic maps, the UCSD Center for Functional MRI, and the Ahmanson-Lovelace Brain Mapping Center. Supported by NSF grants REC 0107077 and BCS 0224321.

Author information

Affiliations

  1. Ahmanson-Lovelace Brain Mapping Center, University of California, Los Angeles, 90095, California, USA

    • Stephen M Wilson
    •  & Marco Iacoboni
  2. Neuroscience Interdepartmental Program, University of California, Los Angeles, 90095, California, USA

    • Stephen M Wilson
  3. Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, 90095, California, USA

    • Marco Iacoboni
  4. Department of Cognitive Science, University of California, San Diego, La Jolla, 92093, California, USA

    • Ayşe Pinar Saygin
    •  & Martin I Sereno

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Competing interests

The authors declare no competing financial interests.

Corresponding author

Correspondence to Stephen M Wilson.

Supplementary information

  1. Supplementary Table 1

    Areas activated by listening to speech in six or more subjects, and motor areas activated by producing speech or bimanual movement. (PDF 22 kb)

  2. Supplementary Methods (PDF 36 kb)

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https://doi.org/10.1038/nn1263

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