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SCIENTIFIC LITERATURE · MED

Dissociation of reward and effort sensitivity in methcathinone-induced Parkinsonism.

J Neuropsychol · 2017-04-05

DOI: 10.1111/jnp.12122PMID: 28378511

Open accessbrief-report; Research Support, Non-U.S. Gov't; Journal ArticleOriginal source ↗

Research overview

The text below is the source article’s original abstract under a verified reuse license. cc by

Methcathinone-induced Parkinsonism is a recently described extrapyramidal syndrome characterized by globus pallidus and substantia nigra lesions, which provides a unique model of basal ganglia dysfunction. We assessed motivated behaviour in this condition using a novel cost-benefit decision-making task, in which participants decided whether it was worth investing effort for reward. Patients showed a dissociation between reward and effort sensitivity, such that pallidonigral complex dysfunction caused them to become less sensitive to rewards, while normal sensitivity to effort costs was maintained.

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