Theory of mind and executive function: working-memory capacity and inhibitory control as predictors of false-belief task performance.

Full Abstract

This study of the relationship between theory of mind and executive function examined whether on the false-belief task age differences between 3 and 5 ears of age are related to development of working-memory capacity and inhibitory processes. 72 children completed tasks measuring false belief, working memory, and inhibition. Significant age effects were observed for false-belief and working-memory performance, as well as for the false-alarm and perseveration measures of inhibition. A simultaneous multiple linear regression specified the contribution of age, inhibition, and working memory to the prediction of false-belief performance. This model was significant, explaining a total of 36% of the variance. To examine the independent contributions of the working-memory and inhibition variables, after controlling for age, two hierarchical multiple linear regressions were conducted. These multiple regression analyses indicate that working memory and inhibition make small, overlapping contributions to false-belief performance after accounting for age, but that working memory, as measured in this study, is a somewhat better predictor of false-belief understanding than is inhibition.

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Author information

Author/s: Mutter, Brigitte (B); Alcorn, Mark B (MB); Welsh, Marilyn (M);

Affiliation: University of Northern Colorado, Greeley 80639-0121, USA.

Journal and publication information

Publication Type: Journal Article

Journal: Perceptual and motor skills (Percept Mot Skills), published in United States. (Language: eng)

Reference: 2006-Jun; vol 102 (issue 3) : pp 819-35

Dates: Created 2006/08/18; Completed 2006/12/07;

PMID: 16916162, status: MEDLINE (last retrieval date: 12/26/2008)

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