Cited by 148Parkinson's Disease Mechanisms and TreatmentsNeurotransmitter Receptor Influence on BehaviorNeurological disorders and treatments

Personality traits and brain dopaminergic function in Parkinson's disease

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Kaasinen, Valtteri, Nurmi, Elina, Bergman, Jörgen, Eskola, Olli, Solin, Olof, Sonninen, Pirkko, Rinne, Juha O.·2001·Proceedings of the National Academy of Sciences

Abstract

A distinctive personality type, characterized by introversion, inflexibility, and low novelty seeking, has been suggested to be associated with Parkinson's disease. To test the hypothesis that Parkinson's disease is associated with a specific dopamine-related personality type, the personality structures of 61 unmedicated Parkinson's disease patients and 45 healthy controls were examined. Additionally, in 47 Parkinson's disease patients, the dopaminergic function in the brain was directly measured with 6-[(18)F]fluoro-l-dopa ((18)F-dopa) positron emission tomography (PET) with MRI coregistration. The novelty-seeking personality score, supposedly associated with the parkinsonian personality, was slightly lower in the Parkinson's disease group compared with controls, but it did not have a significant relationship with (18)F-dopa uptake in any of the brain regions studied (r = -0.12 to 0.11, P > 0.15). The harm-avoidance personality score, associated with anxiety and depression, was clearly increased in patients with Parkinson's disease and it had a paradoxical, highly significant positive correlation with the (18)F-dopa uptake in the right caudate nucleus (r = 0.53, P = 0.04, Bonferroni corrected for 220 comparisons). Although the results of this study are not in disagreement with the concept of low-novelty-seeking personality type in Parkinson's disease, the personality type does not seem to be dopamine dependent. The correlation between the personality trait of harm avoidance and (18)F-dopa may reflect a specific feedback circuitry of neurotransmitters that is associated with negative emotionality in Parkinson's disease.

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Authors
Kaasinen, V., Nurmi, E., Bergman, J., Eskola, O., Solin, O., Sonninen, P., & Rinne, J. O.
Affiliations
University of Turku (FI)
Venue
Proceedings of the National Academy of Sciences
Published
2001-10-30
Volume
98
Issue
23
Pages
13272-13277
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1992607271
Cited by
148
References
44
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 9 · 2020: 6 · 2019: 3 · 2018: 8 · 2017: 6 · 2016: 6 · 2015: 5 · 2014: 7 · 2013: 6 · 2012: 13
FWCI
3.08
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
Keywords
Parkinson's disease, personality traits, novelty seeking, harm avoidance, dopaminergic activity, caudate nucleus, negative affectivity, introversion, inflexibility
MeSH terms
Aged, Brain, Dopamine, Female, Humans, Male, Middle Aged, Parkinson Disease, Personality, Personality Tests, Surveys and Questionnaires, Tomography, Emission-Computed, Case-Control Studies

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