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Related Experiment Video

Updated: Nov 22, 2025

Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
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Does the Country Make a Difference in Impulse Control Disorders? A Systematic Review.

Paloma Parra-Díaz1, Juan Luis Chico-García1, Álvaro Beltrán-Corbellini1

  • 1Department of Neurology Hospital Universitario Ramón y Cajal Madrid Spain.

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Impulse control disorders (ICDs) in Parkinson's disease patients vary geographically. Socio-cultural and political factors may influence ICD presentation, impacting diagnosis and prognosis.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Pharmacology

Background:

  • Impulse control disorders (ICDs) are more frequent in Parkinson's disease (PD) patients, often linked to dopamine agonist (DA) treatment.
  • Cultural, economic, and healthcare policies may influence the presentation of ICDs.

Purpose of the Study:

  • To investigate the variations in ICD phenomenology across different countries.
  • To understand the geographical distribution of ICDs in Parkinson's disease.

Main Methods:

  • A systematic review adhering to PRISMA guidelines was conducted.
  • Searched the PubMed database for studies published up to 2018 analyzing ICD prevalence in Parkinson's disease patients.

Main Results:

  • Thirty-two studies from 22 countries were analyzed, revealing significant geographical variations in ICD prevalence.
  • Western countries showed higher ICD prevalence (20.8%) compared to Asian countries (12.8%), with higher DA use (66% vs. 48.2%).
  • Hypersexuality was the most common ICD overall; compulsive buying and eating were more frequent in Western nations, while gambling was notable in Japan (14%).

Conclusions:

  • A distinct ICD profile appears in different geographical regions, potentially due to socio-economic, cultural, or political factors.
  • Recognizing these geographical differences is crucial for the early detection and improved prognosis of ICDs in Parkinson's disease.