Complex Tasks Force Hand Laterality and Technological Behaviour in Naturalistically Housed Chimpanzees: Inferences in Hominin Evolution
Clear hand laterality patterns in humans are widely accepted. However, humans only elicit a significant hand laterality pattern when performing complementary role differentiation (CRD) tasks. Meanwhile, hand laterality in chimpanzees is weaker and controversial. Here we have reevaluated our results...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/514809 |
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| author | M. Mosquera N. Geribàs A. Bargalló M. Llorente D. Riba |
| author_facet | M. Mosquera N. Geribàs A. Bargalló M. Llorente D. Riba |
| author_sort | M. Mosquera |
| collection | DOAJ |
| description | Clear hand laterality patterns in humans are widely accepted. However, humans only elicit a significant hand laterality pattern when performing complementary role differentiation (CRD) tasks. Meanwhile, hand laterality in chimpanzees is weaker and controversial. Here we have reevaluated our results on hand laterality in chimpanzees housed in naturalistic environments at Fundació Mona (Spain) and Chimfunshi Wild Orphanage (Zambia). Our results show that the difference between hand laterality in humans and chimpanzees is not as great as once thought. Furthermore, we found a link between hand laterality and task complexity and also an even more interesting connection: CRD tasks elicited not only the hand laterality but also the use of tools. This paper aims to turn attention to the importance of this threefold connection in human evolution: the link between CRD tasks, hand laterality, and tool use, which has important evolutionary implications that may explain the development of complex behaviour in early hominins. |
| format | Article |
| id | doaj-art-cc32185f1b5948bfa3322c71bc5d31cb |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-cc32185f1b5948bfa3322c71bc5d31cb2025-02-03T05:50:56ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/514809514809Complex Tasks Force Hand Laterality and Technological Behaviour in Naturalistically Housed Chimpanzees: Inferences in Hominin EvolutionM. Mosquera0N. Geribàs1A. Bargalló2M. Llorente3D. Riba4Universitat Rovira i Virgili (URV), Campus Catalunya, Avinguda de Catalunya 35, 43002 Tarragona, SpainUniversitat Rovira i Virgili (URV), Campus Catalunya, Avinguda de Catalunya 35, 43002 Tarragona, SpainInstitut Català de Paleoecologia Humana i Evolució Social (IPHES), Campus Catalunya, Avinguda de Catalunya 35, 43002 Tarragona, SpainInstitut Català de Paleoecologia Humana i Evolució Social (IPHES), Campus Catalunya, Avinguda de Catalunya 35, 43002 Tarragona, SpainInstitut Català de Paleoecologia Humana i Evolució Social (IPHES), Campus Catalunya, Avinguda de Catalunya 35, 43002 Tarragona, SpainClear hand laterality patterns in humans are widely accepted. However, humans only elicit a significant hand laterality pattern when performing complementary role differentiation (CRD) tasks. Meanwhile, hand laterality in chimpanzees is weaker and controversial. Here we have reevaluated our results on hand laterality in chimpanzees housed in naturalistic environments at Fundació Mona (Spain) and Chimfunshi Wild Orphanage (Zambia). Our results show that the difference between hand laterality in humans and chimpanzees is not as great as once thought. Furthermore, we found a link between hand laterality and task complexity and also an even more interesting connection: CRD tasks elicited not only the hand laterality but also the use of tools. This paper aims to turn attention to the importance of this threefold connection in human evolution: the link between CRD tasks, hand laterality, and tool use, which has important evolutionary implications that may explain the development of complex behaviour in early hominins.http://dx.doi.org/10.1100/2012/514809 |
| spellingShingle | M. Mosquera N. Geribàs A. Bargalló M. Llorente D. Riba Complex Tasks Force Hand Laterality and Technological Behaviour in Naturalistically Housed Chimpanzees: Inferences in Hominin Evolution The Scientific World Journal |
| title | Complex Tasks Force Hand Laterality and Technological Behaviour in Naturalistically Housed Chimpanzees: Inferences in Hominin Evolution |
| title_full | Complex Tasks Force Hand Laterality and Technological Behaviour in Naturalistically Housed Chimpanzees: Inferences in Hominin Evolution |
| title_fullStr | Complex Tasks Force Hand Laterality and Technological Behaviour in Naturalistically Housed Chimpanzees: Inferences in Hominin Evolution |
| title_full_unstemmed | Complex Tasks Force Hand Laterality and Technological Behaviour in Naturalistically Housed Chimpanzees: Inferences in Hominin Evolution |
| title_short | Complex Tasks Force Hand Laterality and Technological Behaviour in Naturalistically Housed Chimpanzees: Inferences in Hominin Evolution |
| title_sort | complex tasks force hand laterality and technological behaviour in naturalistically housed chimpanzees inferences in hominin evolution |
| url | http://dx.doi.org/10.1100/2012/514809 |
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