Resumo

ARENY-BALAGUERO, Marina et al. Influence of Working Memory and Cognitive Flexibility in Performance of the Balloon Analogue Risk task. Psychol. av. discip. [online]. 2015, vol.9, n.2, pp.25-34. ISSN 1900-2386.

A number of studies have raised the importance of certain executive functions such as attention, cognitive flexibility, response inhibition, and working memory in decision-making. The purpose of this study is to prove whether or not working memory and cognitive flexibility, capacities present in decision-making, can explain the changes in the performance of patients with acquired brain damage in Balloon Analogue Risk Task (BART). 73 patients with adult Acquired Brain Injury (ABI) were assessed with the BART, Trail Making Test B (TMTB), Wisconsin Card Sorting Test (WCST) to asses cognitive flexibility; and subtest Letter-Number (LN) of WAIS -III to asses working memory. The same test was administered to a control group of 30 subjects without ABI. In the clinical group, the only variables studied that were included to explain the variation in BART$ were TMTB, p < .001, and WCST, p < .001. We observe that changes in the performance of our patients with ABD in BART could only be explained by cognitive flexibility. Therefore we can conclude that performance in BART depends on the cognitive flexibility of these patients; therefore, it is to be expected that this capacity will be a good predictor of decision-making.

Palavras-chave : Acquired brain injury; taking decisions; Balloon Analogue Risk Task; working memory; cognitive flexibility.

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