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Related Experiment Videos

Do Parkinson's Disease Patients Have Deficits in Sequential Sampling Tasks?

Atbin Djamshidian1,2, Jennifer Mulhall3, Alessandro Tomassini4

  • 1Reta Lila Weston Institute for Neurological Studies and Department of Molecular Neuroscience University of London London United Kingdom.

Movement Disorders Clinical Practice
|October 27, 2018
PubMed
Summary

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Parkinson's disease patients gather less information before making decisions, regardless of addictive behaviors. This study assessed decision-making in Parkinson's disease (PD) patients using a sequential sampling task.

Area of Science:

  • Neuroscience
  • Psychology
  • Neurology

Background:

  • Parkinson's disease (PD) is associated with cognitive changes, including decision-making.
  • Some PD patients exhibit addictive behaviors, potentially linked to personality traits and executive dysfunction.

Purpose of the Study:

  • To investigate neuropsychological behavior in Parkinson's disease patients with and without addictive behaviors.
  • To assess decision-making deficits in PD patients using a sequential sampling task (secretary problem).

Main Methods:

  • Compared 13 PD patients with addictive behaviors to 13 PD patients without.
  • Administered a sequential sampling task where participants chose the best offer from multiple options.
  • Compared patient groups to healthy volunteers.
Keywords:
Parkinson's diseaseimpulsive compulsive behaviorssequential sampling

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Main Results:

  • All PD patients declined fewer options before committing to a deal compared to controls.
  • No significant difference in decision-making was found between PD patients with and without addictive behaviors.
  • No difference in overall choice rank was observed between PD patients and healthy controls.

Conclusions:

  • Parkinson's disease patients, irrespective of addictive behaviors, tend to gather less evidence before making decisions.
  • PD patients do not exhibit deficits in recognizing the optimal choice among multiple options.
  • Decision-making processes in PD patients warrant further investigation, particularly concerning information gathering.