ArticleJournal of the neurological sciences2024
Reduced sensitivity to future consequences underlies gambling decision in cerebellar ataxia.
Article in Journal of the neurological sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Impulsivity, Compulsivity, Social Inappropriateness, and Other Neuropsychiatric Features in Cerebellar Histiocytosis.Cerebellum (London, England) · 2026Pooled it
- Impulsivity in cerebellar ataxia: an online, multidimensional assessment.Journal of neural transmission (Vienna, Austria : 1996) · 2026Article
- Continuous theta burst stimulation to the medial posterior cerebellum impairs reversal learning in healthy volunteers.Cognitive, affective & behavioral neuroscience · 2025Article
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8 authors.
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Abstract
introductionPrevious research has identified that people with cerebellar ataxia (CA) showed impaired reward-related decision-making in the Iowa Gambling Task (IGT). To investigate the mechanisms underlying this impairment, we examined CA participants' combination of performance in the IGT, which predominantly tests reward seeking, and the modified IGT (mIGT), which mainly assesses punishment avoidance.
methodsFifty participants with CA and one hundred controls completed the IGT and mIGT. Task performance in each of the five twenty-trial blocks was compared between groups and the learning rates were assessed with simple linear regressions. Each participant's IGT score and mIGT score were compared.
resultsCA participants performed worse than controls in both the IGT and the mIGT, especially in the last block (IGT: -0.24 ± 10.05 vs. 3.88 ± 10.31, p = 0.041; mIGT: 2.72 ± 7.62 vs. 8.65 ± 8.64, p < 0.001). In contrast to the controls, those with CA did not significantly improve their scores over time in either task. Controls performed better in the mIGT than the IGT, while CA participants' scores in the two tasks showed no significant difference. IGT and mIGT performance did not correlate with ataxia severity or depressive symptoms.
conclusionIndividuals with CA showed impaired performance in both the IGT and mIGT, which indicates disruption in both short-term reward seeking and short-term punishment avoidance. Therefore, these results suggest that reduced sensitivity to long-term consequences drives the risky decision-making in CA.
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