Chapter

Intervention Studies

K. Warner Schaie

in Developmental Influences on Adult Intelligence

Published in print February 2005 | ISBN: 9780195156737
Published online September 2007 | e-ISBN: 9780199786817 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195156737.003.0007
 Intervention Studies

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This chapter reports the results of the cognitive intervention studies and their long-term follow-up and replication with new cohorts, as part of the Seattle Longitudinal Study. These studies lead to the conclusion that, for many persons, cognitive decline in old age may be a function of disuse rather than deterioration of the physiological substrates of cognitive behavior. A brief five-hour training program on the abilities of Inductive Reasoning and Spatial Orientation involving individual tutorials was designed to improve the performance of participants above the age of sixty-four years. Participants were assigned either to training in the ability on which they had declined or randomly to one of the two training conditions if they had declined or remained stable on both abilities.

Keywords: Seattle Longitudinal Study; intellectual development; cognitive intervention studies; cognitive decline; old age; inductive reasoning; spatial orientation

Chapter.  9610 words.  Illustrated.

Subjects: Developmental Psychology

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