Choice-option evaluation is preserved in early Huntington and Parkinson's disease

Minati, Ludovico, Piacentini, Sylvie, Ferre, Francesca, Nanetti, Lorenzo, Romito, Luigi, Mariotti, Caterina, Grisoli, Marina, Medford, Nick, Critchley, Hugo and Albanese, Alberto (2011) Choice-option evaluation is preserved in early Huntington and Parkinson's disease. NeuroReport, 22 (15). pp. 753-757. ISSN 0959-4965

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Abstract

The ability to choose effectively when faced with potential risks and rewards is fundamental for adaptive survival. The striatum has a well-established role supporting learning from the outcomes of decisions, but it remains unclear whether this structure is also necessary for computing expected value (i.e., advantageousness of potential decisions) when all information is explicitly given. We addressed this question presenting simple monetary gambles, where all decisional parameters were given and outcome feedback was absent, to patients with early Huntington 19s and Parkinson 19s disease, taken as complementary models of striatal dysfunction. Behavioural responses and associated times were found to be unaltered. This negative finding suggests that striatal activity may not be essential for decision-making in situations where all information is provided and learning from outcomes is unnecessary.

Item Type: Article
Schools and Departments: Brighton and Sussex Medical School > Clinical Medicine
Subjects: R Medicine
Depositing User: Jil Fairclough
Date Deposited: 30 Oct 2012 09:48
Last Modified: 14 May 2015 09:48
URI: http://sro.sussex.ac.uk/id/eprint/41007
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