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Opposite brain laterality in analogous auditory and visual tests.

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Title: Opposite brain laterality in analogous auditory and visual tests.
Authors: Oltedal, Leif (AUTHOR), Hugdahl, Kenneth (AUTHOR)
Source: Laterality. Nov2017, Vol. 22 Issue 6, p690-702. 13p.
Subjects: Lateral dominance, Dichotic listening tests, Visual perception, Magnetic resonance imaging of the brain, Cognitive testing, Task performance
Abstract: Laterality for language processing can be assessed by auditory and visual tasks. Typically, a right ear/right visual half-field (VHF) advantage is observed, reflecting left-hemispheric lateralization for language. Historically, auditory tasks have shown more consistent and reliable results when compared to VHF tasks. While few studies have compared analogous tasks applied to both sensory modalities for the same participants, one such study by Voyer and Boudreau [(2003). Cross-modal correlation of auditory and visual language laterality tasks: a serendipitous finding.Brain Cogn,53(2), 393–397] found opposite laterality for visual and auditory language tasks. We adapted an experimental paradigm based on a dichotic listening and VHF approach, and applied the combined language paradigm in two separate experiments, including fMRI in the second experiment to measure brain activation in addition to behavioural data. The first experiment showed a right-ear advantage for the auditory task, but a left half-field advantage for the visual task. The second experiment, confirmed the findings, with opposite laterality effects for the visual and auditory tasks. In conclusion, we replicate the finding by Voyer and Boudreau (2003) and support their interpretation that these visual and auditory language tasks measure different cognitive processes. [ABSTRACT FROM AUTHOR]
Copyright of Laterality is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Opposite brain laterality in analogous auditory and visual tests.
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  Data: <searchLink fieldCode="AR" term="%22Oltedal%2C+Leif%22">Oltedal, Leif</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hugdahl%2C+Kenneth%22">Hugdahl, Kenneth</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Laterality%22">Laterality</searchLink>. Nov2017, Vol. 22 Issue 6, p690-702. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Lateral+dominance%22">Lateral dominance</searchLink><br /><searchLink fieldCode="DE" term="%22Dichotic+listening+tests%22">Dichotic listening tests</searchLink><br /><searchLink fieldCode="DE" term="%22Visual+perception%22">Visual perception</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+resonance+imaging+of+the+brain%22">Magnetic resonance imaging of the brain</searchLink><br /><searchLink fieldCode="DE" term="%22Cognitive+testing%22">Cognitive testing</searchLink><br /><searchLink fieldCode="DE" term="%22Task+performance%22">Task performance</searchLink>
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  Data: Laterality for language processing can be assessed by auditory and visual tasks. Typically, a right ear/right visual half-field (VHF) advantage is observed, reflecting left-hemispheric lateralization for language. Historically, auditory tasks have shown more consistent and reliable results when compared to VHF tasks. While few studies have compared analogous tasks applied to both sensory modalities for the same participants, one such study by Voyer and Boudreau [(2003). Cross-modal correlation of auditory and visual language laterality tasks: a serendipitous finding.Brain Cogn,53(2), 393–397] found opposite laterality for visual and auditory language tasks. We adapted an experimental paradigm based on a dichotic listening and VHF approach, and applied the combined language paradigm in two separate experiments, including fMRI in the second experiment to measure brain activation in addition to behavioural data. The first experiment showed a right-ear advantage for the auditory task, but a left half-field advantage for the visual task. The second experiment, confirmed the findings, with opposite laterality effects for the visual and auditory tasks. In conclusion, we replicate the finding by Voyer and Boudreau (2003) and support their interpretation that these visual and auditory language tasks measure different cognitive processes. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Laterality is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/1357650X.2016.1269335
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        Text: English
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        Type: general
      – SubjectFull: Dichotic listening tests
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      – SubjectFull: Visual perception
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      – SubjectFull: Magnetic resonance imaging of the brain
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      – SubjectFull: Cognitive testing
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      – SubjectFull: Task performance
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              Text: Nov2017
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