EVIDENCE FOR PARACALLOSAL VERBAL TRANSFER AFTER CALLOSAL SECTION: A POSSIBLE CONSEQUENCE OF BILATERAL LANGUAGE ORGANIZATION
Abstract
The covert interhemispheric transfer of linguistic information was demonstrated in a commissurotomy patient with bilateral language organization. It was found that under conditions of unilateral stimulation, a verbal association established in one hemisphere was available to the untrained hemisphere as well. Such interhemispheric transfer was observed only for phonetically codable information. Moreover, transfer was not observed under conditions of simultaneous bilateral stimulation. These results suggest that the point of convergence between the left and right hemisphere language systems allows for the paracallosal transfer of linguistic information.
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In order to claim that the right hemisphere is the source of the naming responses, interhemispheric transfer and cross-cueing must be ruled out as ways the right hemisphere might convey information to the left which then speaks.
“In order to claim that the right hemisphere is the source of the naming responses we must rule out interhemispheric transfer and cross-cueing as ways in which the right hemisphere might convey information to the left which then speaks (Gazzaniga et al., 1982).”
From Collaboration between the hemispheres of a callosotomy patient: Emerging right hemisphere speech and the left hemisphere interpreter (1996) · cites this paper as Gazzaniga et al., 1982
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Profiles of right hemisphere language and speech following brain bisection
Gazzaniga, M. S., Smylie, C. S., Baynes, K., Hirst, W., & McCleary, C. (1984) · Brain and Language · doi:10.1016/0093-934x(84)90090-7 · Cited by 82 · see citing works
Self-citationGazzaniga, M. S., Eliassen, J. C., Nisenson, L., Wessinger, C. M., Fendrich, R., & Baynes, K. (1996) · Brain · doi:10.1093/brain/119.4.1255 · Cited by 47 · see citing works
Self-citation
- Authors
- GAZZANIGA, M. S., SIDTIS, J. J., VOLPE, B. T., SMYLIE, C., HOLTZMAN, J., & WILSON, D.
- Affiliations
- Dartmouth–Hitchcock Medical Center (US)
- Venue
- Brain
- Publisher
- Oxford University Press (OUP)
- Published
- 1982
- Volume
- 105
- Issue
- 1
- Pages
- 53-63
- ISSN
- 0006-8950 (ISSN-L)
- 1460-2156
- OpenAlex
- W2126055446
- Cited by
- 23
- References
- 0
- FWCI
- 1.87
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Brain (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Hemispheric Asymmetry in Neuroscience
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Social Sciences › Psychology › Developmental and Educational Psychology › Reading and Literacy Development
- Keywords
- commissurotomy, interhemispheric transfer, verbal associations, language lateralization
- MeSH terms
- Adult, Corpus Callosum, Discrimination Learning, Dominance, Cerebral, Epilepsy, Temporal Lobe, Humans, Male, Paired-Associate Learning, Pattern Recognition, Visual, Phonetics, Semantics, Speech, Visual Fields
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