Modular Organization of Cognitive Systems Masked by Interhemispheric Integration-Reference-Cited by-同舟云学术

Modular Organization of Cognitive Systems Masked by Interhemispheric Integration

Published:1998-05-08 Issue:5365 Volume:280 Page:902-905
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Baynes Kathleen¹²³⁴,Eliassen James C.¹²³⁴,Lutsep Helmi L.¹²³⁴,Gazzaniga Michael S.¹²³⁴

Affiliation:

1. K. Baynes, Center for Neuroscience, University of California at Davis, Davis, CA 95616, and VA Northern California Health Care System, Martinez, CA 94553, USA.

2. J. C. Eliassen, Center for Neuroscience, University of California at Davis, Davis, CA 95616, USA.

3. H. L. Lutsep, Oregon Stroke Center, Oregon Health Sciences University, Portland, OR 97201, USA.

4. M. S. Gazzaniga, Center for Cognitive Neuroscience, Dartmouth College, Hanover, NH 03654, USA.

Abstract

After resection of the corpus callosum, V.J., a left-handed woman with left-hemisphere dominance for spoken language, demonstrated a dissociation between spoken and written language. In the key experiment, words flashed to V.J.'s dominant left hemisphere were easily spoken out loud, but could not be written. However, when the words were flashed to her right hemisphere, she could not speak them out loud, but could write them with her left hand. This marked dissociation supports the view that spoken and written language output can be controlled by independent hemispheres, even though before her hemispheric disconnection, they appeared as inseparable cognitive entities.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://www.science.org/doi/pdf/10.1126/science.280.5365.902

Reference14 articles.

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4. M. S. Gazzaniga, B. T. Volpe, C. S. Smylie, D. H. Wilson, J. E. LeDoux, Brain 102, 805 (1979); M. S. Gazzaniga, J. J. Sidtis, B. T. Volpe, C. S. Smylie, ibid 105, 53 (1982); Baynes K., Tramo M. J., Gazzaniga M. S., Neuropsychologia 30, 187 (1992).

5. Patient J.W. has demonstrated the ability to read aloud and write the names of concrete words and pictures presented to his LVF. He has never been successful in responding to LVF presentations when stimulus lists varied word class [K. Baynes, M. C. Wessinger, R. Fendrich, M. S. Gazzaniga, Neuropsychologia 33, 1225 (1995); Gazzaniga M. S., et al., Brain 119, 1255 (1996)].

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