Lateralized behavior and lymphocyte counts in chimpanzees (Pan troglodytes): A cross-sectional and longitudinal assessment

William D. Hopkins; Lisa A. Parr

doi:10.1080/87565649809540726

Lateralized behavior and lymphocyte counts in chimpanzees (Pan troglodytes): A cross-sectional and longitudinal assessment

William D. Hopkins, Lisa A. Parr

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Cross-sectional and longitudinal assessment of lymphocyte count and behavioral laterality was examined in a sample of captive chimpanzees (Pan troglodytes) to assess the validity of the Geschwind-Behan-Galaburda (GBG) theory of cerebral lateralization. For the cross-sectional analysis, chimpanzees classified as right-handed for feeding exhibited lower lymphocyte counts than chimpanzees classified as either ambiguously handed or left- handed. Longitudinal analysis indicated that some measures of laterality within the first 3 months of life predicted (a) direction of hand preference at 2 to 5 years of age and (b) lymphocyte counts for the first 3 years of life. The association between lymphocyte count and behavioral laterality was more evident in males than females. Taken together, the results support some aspects of the GBG theory.

Original language	English (US)
Pages (from-to)	519-533
Number of pages	15
Journal	Developmental Neuropsychology
Volume	14
Issue number	4
DOIs	https://doi.org/10.1080/87565649809540726
State	Published - 1998
Externally published	Yes

ASJC Scopus subject areas

Neuropsychology and Physiological Psychology
Developmental and Educational Psychology

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10.1080/87565649809540726

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title = "Lateralized behavior and lymphocyte counts in chimpanzees (Pan troglodytes): A cross-sectional and longitudinal assessment",

abstract = "Cross-sectional and longitudinal assessment of lymphocyte count and behavioral laterality was examined in a sample of captive chimpanzees (Pan troglodytes) to assess the validity of the Geschwind-Behan-Galaburda (GBG) theory of cerebral lateralization. For the cross-sectional analysis, chimpanzees classified as right-handed for feeding exhibited lower lymphocyte counts than chimpanzees classified as either ambiguously handed or left- handed. Longitudinal analysis indicated that some measures of laterality within the first 3 months of life predicted (a) direction of hand preference at 2 to 5 years of age and (b) lymphocyte counts for the first 3 years of life. The association between lymphocyte count and behavioral laterality was more evident in males than females. Taken together, the results support some aspects of the GBG theory.",

author = "Hopkins, {William D.} and Parr, {Lisa A.}",

note = "Funding Information: Funding for this research was provided by NIH grants (RR-00165 and NS-29574) to the Yerkes Regional Primate Research Center of Emory University. The Yerkes Primate Center is fully accredited by the American Association for Accreditation of Laboratory Animal Care. The American Psychological Associations guideline for the ethical treatment of animals was fully adhered to during all phases of this study. We thank the caretaking and veterinary staff for their assistance. Anne Brodie and Sue Setzekorn were especially helpful in collecting and interpreting the lymphocyyte count data and we are grateful for their assistance.",

year = "1998",

doi = "10.1080/87565649809540726",

language = "English (US)",

volume = "14",

pages = "519--533",

journal = "Developmental Neuropsychology",

issn = "8756-5641",

publisher = "Psychology Press Ltd",

number = "4",

}

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T1 - Lateralized behavior and lymphocyte counts in chimpanzees (Pan troglodytes)

T2 - A cross-sectional and longitudinal assessment

AU - Hopkins, William D.

AU - Parr, Lisa A.

N1 - Funding Information: Funding for this research was provided by NIH grants (RR-00165 and NS-29574) to the Yerkes Regional Primate Research Center of Emory University. The Yerkes Primate Center is fully accredited by the American Association for Accreditation of Laboratory Animal Care. The American Psychological Associations guideline for the ethical treatment of animals was fully adhered to during all phases of this study. We thank the caretaking and veterinary staff for their assistance. Anne Brodie and Sue Setzekorn were especially helpful in collecting and interpreting the lymphocyyte count data and we are grateful for their assistance.

PY - 1998

Y1 - 1998

N2 - Cross-sectional and longitudinal assessment of lymphocyte count and behavioral laterality was examined in a sample of captive chimpanzees (Pan troglodytes) to assess the validity of the Geschwind-Behan-Galaburda (GBG) theory of cerebral lateralization. For the cross-sectional analysis, chimpanzees classified as right-handed for feeding exhibited lower lymphocyte counts than chimpanzees classified as either ambiguously handed or left- handed. Longitudinal analysis indicated that some measures of laterality within the first 3 months of life predicted (a) direction of hand preference at 2 to 5 years of age and (b) lymphocyte counts for the first 3 years of life. The association between lymphocyte count and behavioral laterality was more evident in males than females. Taken together, the results support some aspects of the GBG theory.

AB - Cross-sectional and longitudinal assessment of lymphocyte count and behavioral laterality was examined in a sample of captive chimpanzees (Pan troglodytes) to assess the validity of the Geschwind-Behan-Galaburda (GBG) theory of cerebral lateralization. For the cross-sectional analysis, chimpanzees classified as right-handed for feeding exhibited lower lymphocyte counts than chimpanzees classified as either ambiguously handed or left- handed. Longitudinal analysis indicated that some measures of laterality within the first 3 months of life predicted (a) direction of hand preference at 2 to 5 years of age and (b) lymphocyte counts for the first 3 years of life. The association between lymphocyte count and behavioral laterality was more evident in males than females. Taken together, the results support some aspects of the GBG theory.

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Lateralized behavior and lymphocyte counts in chimpanzees (Pan troglodytes): A cross-sectional and longitudinal assessment

Abstract

ASJC Scopus subject areas

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