Placing Intelligence into an Evolutionary Framework or How "g" Fits into the "r-K" Matrix of Life-History Traits Including Longevity

Autor/in	Rushton, J. Philippe
Titel	Placing Intelligence into an Evolutionary Framework or How "g" Fits into the "r-K" Matrix of Life-History Traits Including Longevity
Quelle	In: Intelligence, 32 (2004) 4, S.321-328 (8 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0160-2896
DOI	10.1016/j.intell.2004.06.003
Schlagwörter	Intelligence; Theories; Intelligence Quotient; Brain; Evolution + Suchen Sie Ihr Suchwort? Intelligenz; Klugheit; Theory; Theorie; Intelligenzquotient; Gehirn
Abstract	First, I describe why intelligence (Spearman's "g") can only be fully understood through "r-K" theory, which places it into an evolutionary framework along with brain size, longevity, maturation speed, and several other life-history traits. The "r-K" formulation explains why IQ predicts longevity and also why the gap in mortality rates between rich and poor has "increased" with greater access to health care. Next, I illustrate the power of this approach by analyzing a large data set of life-history variables on 234 mammalian species and find that brain size correlates r = 0.70 with longevity (0.59, after controlling for body weight and body length). A principal component analysis reveals a single "r-K" life-history factor with loadings such as: brain weight (0.85), longevity (0.91), gestation time (0.86), birth weight (0.62), litter size (-0.54), age at first mating (0.73), duration of lactation (0.67), body weight (0.61), and body length (0.63). The factor loadings remain high when body weight and length are covaried. Finally, I demonstrate the theoretical importance of this approach in restoring the concept of ''progress'' to its proper place in evolutionary biology showing why, over the last 575 million years of evolutionary competition of finding and filling new niches, there has always been (and likely always will be) ''room at the top.'' (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10