Performance on the Iowa Gambling Task: From 5 to 89 years of age.

ABSTRACT: The present study focuses on the role of frequency bias and expected value on the learning processes driving performance on the Iowa Gambling Task (IGT) in individuals between 5 and 89 years of age. As in previous studies, children performed poorly on the IGT, were increasingly influenced by frequency of losses during learning, and constantly changed their decisions. Decision-making strategies changed after childhood from erratic behavior to more consistent strategies that promoted expected value of deck choices. Performance deficits as well as a loss frequency bias were found in older adults. However, age-related deficits were distinct between children and older adults. Cognitive modeling analysis indicated that older adults were more likely to forget about recent outcomes and were more c

SUBMITTER: Beitz KM 

PROVIDER: S-EPMC4115037 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature