Library Header Image
LSE Research Online LSE Library Services

Temperature and evolutionary novelty as forces behind the evolution of general intelligence

Kanazawa, Satoshi ORCID: 0000-0003-3786-8797 (2008) Temperature and evolutionary novelty as forces behind the evolution of general intelligence. Intelligence, 36 (2). pp. 99-108. ISSN 0160-2896

Full text not available from this repository.
Identification Number: 10.1016/j.intell.2007.04.001


How did human intelligence evolve to be so high? Lynn [Lynn, R. (1991). The evolution of race differences in intelligence. Mankind Quarterly, 32, 99–173] and Rushton [Rushton, J.P. (1995). Race, evolution, and behavior: A life history perspective. New Brunswick: Transaction] suggest that the main forces behind the evolution of human intelligence were the cold climate and harsh winters, which selected out individuals of lower intelligence. In contrast, Kanazawa [Kanazawa, S. (2004). General intelligence as a domain-specific adaptation. Psychological Review, 111, 512–523] contends that it is the evolutionary novelty of the environment which increased general intelligence. Multiple regression analyses support both theories. Annual mean temperature and evolutionary novelty (measured by latitude, longitude, and distance from the ancestral environment) simultaneously have independent effects on average intelligence of populations. Temperature and evolutionary novelty together explain half to two-thirds of variance in national IQ.

Item Type: Article
Official URL:
Additional Information: © 2008 Elsevier
Divisions: Management
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Date Deposited: 13 Jul 2011 13:50
Last Modified: 28 Jun 2024 19:42

Actions (login required)

View Item View Item