Hand and paw preferences in relation to the lateralized brain.

Rogers, Lesley J. (2009) Hand and paw preferences in relation to the lateralized brain.. Philosophical Transactions of the Royal Society B. Biological Sciences, 364 1519: 934-954. doi:10.1098/rstb.2008.0225

Author Rogers, Lesley J.
Title Hand and paw preferences in relation to the lateralized brain.
Journal name Philosophical Transactions of the Royal Society B. Biological Sciences   Check publisher's open access policy
ISSN 0962-8436
Publication date 2009-01-01
Year available 2009
Sub-type Article (original research)
DOI 10.1098/rstb.2008.0225
Open Access Status Not Open Access
Volume 364
Issue 1519
Start page 934
End page 954
Total pages 21
Place of publication London, United Kingdom
Publisher The Royal Society Publishing
Language eng
Formatted abstract
Hand preferences of primates are discussed as part of the broad perspective of brain lateralization in animals, and compared with paw preferences in non-primates. Previously, it has been suggested that primates are more likely to express a species-typical hand preference on complex tasks, especially in the case of coordinated hand use in using tools. I suggest that population-level hand preferences are manifested when the task demands the obligate use of the processing specialization of one hemisphere, and that this depends on the nature of the task rather than its complexity per se. Depending on the species, simple reaching tasks may not demand the obligate use of a specialized hemisphere and so do not constrain limb/hand use. In such cases, individuals may show hand preferences that are associated with consistent differences in behaviour. The individual's hand preference is associated with the expression of behaviour controlled by the hemisphere contralateral to the preferred hand (fear and reactivity in left-handed individuals versus proactivity in right-handed individuals). Recent findings of differences in brain structure between left- and right-handed primates (e.g. somatosensory cortex in marmosets) have been discussed and related to potential evolutionary advances.
Keyword Common marmoset
Coping style
Cortical structure
Hand preference
Hemispheric specialization
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes For ERA

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Brain Institute Publications
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Citation counts: TR Web of Science Citation Count  Cited 98 times in Thomson Reuters Web of Science Article | Citations
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Created: Sat, 25 Oct 2014, 01:20:42 EST by Debra McMurtrie on behalf of Queensland Brain Institute