ArticleJournal of comparative psychology (Washington, D.C. : 1983)2019
Further evidence of a left hemisphere specialization and genetic basis for tool use skill in chimpanzees (Pan troglodytes): Reproducibility in two genetically isolated populations of apes.
Article in Journal of comparative psychology (Washington, D.C. : 1983), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 22 citations in OpenAlex.
- Sticks and Stones: Hand Preference and Grip in Wild Chimpanzee Tool-Use.American journal of biological anthropology · 2026Article
- Heritability of gray matter volume and asymmetry in chimpanzees (Pan troglodytes) and their association to cognitive abilities and tool use.Brain structure & function · 2025Article
- Brain age gap is associated with cognitive abilities in captive chimpanzees.Scientific reports · 2025Article
- Oro-facial and manual motor functions are differentially associated with short-fiber white matter connectivity within the chimpanzee "homunculus".Cerebral cortex (New York, N.Y. : 1991) · 2025Article
- Article
- Age- and sex-related differences in baboon (Papio anubis) gray matter covariation.Neurobiology of aging · 2023Article
- Genetic determinants of individual variation in the superior temporal sulcus of chimpanzees (Pan troglodytes).Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- Article
- Heritability in corpus callosum morphology and its association with tool use skill in chimpanzees (Pan troglodytes): Reproducibility in two genetically isolated populations.Genes, brain, and behavior · 2022Article
- Age- and cognition-related differences in the gray matter volume of the chimpanzee brain (Pan troglodytes): A voxel-based morphometry and conjunction analysis.American journal of primatology · 2021Article
- Reproducibility of leftward planum temporale asymmetries in two genetically isolated populations of chimpanzees (Proceedings. Biological sciences · 2020Article
- The role of early social rearing, neurological, and genetic factors on individual differences in mutual eye gaze among captive chimpanzees.Scientific reports · 2020Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
It has been hypothesized that the evolution of tool use may have served as a preadaptation for the emergence of left hemispheric specialization in motor skill in humans. Here, we tested for intermanual differences in performance on a tool use task in a sample of 206 captive chimpanzees in relation to their sex, age, and hand preference. In addition, we examined heritability in tool use skill for the entire sample, as well as within 2 genetically isolated populations of captive chimpanzees. This was done to determine the degree of reproducibility in heritability on motor performance. The results revealed a significant effect of hand preference on intermanual differences in performance. Right-handed chimpanzees performed the task more quickly with their right compared with left hand. In contrast, no significant intermanual differences in performance were found in left- and ambiguous-handed apes. Tool use performance was found to be significantly heritable for overall performance, as well as separately for the left and right hands. Further, significant heritability in tool use performance was found in both populations of apes, suggesting these results were reproducible. The results are discussed in the context of evolutionary theories of handedness and hemispheric specialization and the genetic mechanisms that underlie their expression in primates, including humans. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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