Cerebral asymmetry for language: Comparing production with comprehension

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dc.contributor.author Häberling, IS en
dc.contributor.author Steinemann, A en
dc.contributor.author Corballis, Michael en
dc.date.accessioned 2017-07-05T23:19:03Z en
dc.date.issued 2016-01 en
dc.identifier.citation Neuropsychologia 80:17-23 Jan 2016 en
dc.identifier.issn 0028-3932 en
dc.identifier.uri http://hdl.handle.net/2292/34018 en
dc.description.abstract Although left-hemispheric damage can impair both the production and comprehension of language, it has been claimed that comprehension is more bilaterally represented than is production. A variant of this theme is based on the theory that different aspects of language are processed by a dorsal stream, responsible for mapping words to articulation, and a ventral stream for processing input for meaning. Some have claimed that the dorsal stream is left-hemispheric, while the ventral stream is bilaterally organized. We used fMRI to record activation while left- and right-handed participants performed covert word-generation task and judged whether word pairs were synonyms. Regions of interest were Broca's area as part of the dorsal stream and the superior and middle temporal gyri as part of the ventral stream. Laterality indices showed equal left-hemispheric lateralization in Broca's area for word generation and both Broca's area and temporal lobe for the synonym judgments. Handedness influenced laterality equally in each area and task, with right-handers showing stronger left-hemispheric dominance than left-handers. Although our findings provide no evidence that asymmetry is more pronounced for production than for comprehension, correlations between the tasks and regions of interest support the view that lateralization in the temporal lobe depends on feedback influences from frontal regions. en
dc.format.medium Print-Electronic en
dc.language eng en
dc.publisher Elsevier en
dc.relation.ispartofseries Neuropsychologia en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.subject Cerebral Cortex en
dc.subject Humans en
dc.subject Oxygen en
dc.subject Magnetic Resonance Imaging en
dc.subject Brain Mapping en
dc.subject Language en
dc.subject Comprehension en
dc.subject Neuropsychological Tests en
dc.subject Image Processing, Computer-Assisted en
dc.subject Adolescent en
dc.subject Adult en
dc.subject Female en
dc.subject Male en
dc.subject Functional Laterality en
dc.subject Young Adult en
dc.title Cerebral asymmetry for language: Comparing production with comprehension en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.neuropsychologia.2015.11.002 en
pubs.begin-page 17 en
pubs.volume 80 en
dc.rights.holder Copyright: Elsevier en
dc.identifier.pmid 26548403 en
pubs.end-page 23 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 504703 en
dc.identifier.eissn 1873-3514 en
pubs.record-created-at-source-date 2017-07-06 en
pubs.dimensions-id 26548403 en

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