Abstract
Expanding on a recent study that identified a heritable general intelligence factor (. g) among individual chimpanzees from a battery of cognitive tasks, we hypothesized that the more g-loaded cognitive abilities would also be more heritable addition to presenting greater additive genetic variance and interindividual phenotypic variability. This pattern was confirmed with multiple analytical approaches, and is comparable to that found in humans, indicating fundamental homology. Finally, tool use presented the highest heritability, the largest amount of additive genetic variance and phenotypic variance, consistent with previous findings indicating that it is associated with high interspecies variance and has evolved rapidly in comparative primate studies.
Original language | English (US) |
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Pages (from-to) | 159-163 |
Number of pages | 5 |
Journal | Intelligence |
Volume | 50 |
DOIs | |
State | Published - May 1 2015 |
Externally published | Yes |
Keywords
- CVA
- Chimpanzee
- General intelligence
- Heritability
- Primate intelligence
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Developmental and Educational Psychology
- Arts and Humanities (miscellaneous)