Determinants of intelligence: Nutrition and Intelligence.

Abstract

mutability of intelligence can become a self-fulfilling expectation.Success in the workplace and in everyday life depends on a variety of competencies, not all of which are cognitive. A high level of general intelligence, as evidenced by performance on IQ tests, is unquestionably an asset, but it appears to be neither a necessary nor a sufficient cause of success. The goal of raising

A negative Flynn Effect in France, 1999 to 2008–9

“…We suggest that there are four feasible explanations. First, it was proposed by Lynn (1998) and subsequently by a number of others (Colom, Lluis-Font, & Andrés-Pueyo, 2005;Greenfield, 1998;Sigman, 2000) that improvements in the quality of nutrition during the twentieth century made a major contribution to increasing IQs. But it seems improbable that the quality of nutrition declined in recent years in France and in the other economically developed countries in which declining IQs have been reported.…”

The magnitude, generality, and determinants of Flynn effects on forms of declarative memory and visuospatial ability: Time-sequential analyses of data from a Swedish cohort study

“…A major account attributes the FEs to improved nutrition (Lynn, 1990a(Lynn, , 1998, see also Colom, Lluis-Font, & Andrés-Pueyo, 2005;Sigman, 2000;Sigman & Whaley, 1998), which, for example, is assumed to account for the marked cohort-related increase in body height during the 20th century (Malina, 1979;Martorell, 1998). Given a similar growth trend for neural substrates underlying cognitive performance (for evidence pertaining to brain size, see Storfer, 1999), later-born individuals may have a cognitive advantage over those born earlier.…”