Global and Domain-Specific Changes in Cognition throughout Adulthood

Autor/in	Tucker-Drob, Elliot M.
Titel	Global and Domain-Specific Changes in Cognition throughout Adulthood
Quelle	In: Developmental Psychology, 47 (2011) 2, S.331-343 (13 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0012-1649
DOI	10.1037/a0021361
Schlagwörter	Cognitive Processes; Age Differences; Adults; Change; Time Perspective; Visualization; Spatial Ability; Abstract Reasoning; Models; Factor Analysis; Aging (Individuals); Predictor Variables; Physical Activities; Interpersonal Competence; Educational Attainment + Suchen Sie Ihr Suchwort? Cognitive process; Kognitiver Prozess; Age; Difference; Age difference; Altersunterschied; Wandel; Zeitbezug; Visualisation; Visualisierung; Räumliches Vorstellungsvermögen; Abstraktes Denken; Denken; Analogiemodell; Faktorenanalyse; Aging; Altern; Prädiktor; Interpersonale Kompetenz; Bildungsabschluss; Bildungsgut
Abstract	Normative adult age-related decrements are well documented for many diverse forms of effortful cognitive processing. However, it is currently unclear whether each of these decrements reflects a distinct and independent developmental phenomenon, or, in part, a more global phenomenon. A number of studies have recently been published that show moderate to large magnitudes of positive relations among individual differences in rates of changes in different cognitive variables during adulthood. This suggests that a small number of common dimensions or even a single common dimension may underlie substantial proportions of individual differences in aging-related cognitive declines. This possibility was directly examined using data from 1,281 adults 18-95 years of age who were followed longitudinally over up to 7 years on 12 different measures of effortful processing. Multivariate growth curve models were applied to examine the dimensionality of individual differences in longitudinal changes. Results supported a hierarchical structure of aging-related changes, with an average of 39% of individual differences in change in a given variable attributable to global (domain-general) developmental processes, 33% attributable to domain-specific developmental processes (abstract reasoning, spatial visualization, episodic memory, and processing speed), and 28% attributable to test-specific developmental processes. Although it is often assumed that systematic and pervasive sources of cognitive decline only emerge in later adulthood, domain-general influences on change were apparent for younger (18-49 years), middle aged (50-69 years), and older (70-95 years) adults. (Contains 1 figure, 7 tables, and 3 footnotes.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10