Cited by 903Parkinson's Disease Mechanisms and TreatmentsNeurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology Studies

Dopaminergic modulation of cognitive function-implications for l-DOPA treatment in Parkinson's disease

Cools, Roshan·2006·Neuroscience & Biobehavioral Reviews

Abstract

It is well recognised that patients with Parkinson's disease exhibit cognitive deficits, even in the earliest disease stages. Whereas, L-DOPA therapy in early Parkinson's disease is accepted to improve the motor symptoms, the effects on cognitive performance are more complex: both positive and negative effects have been observed. The purpose of the present article is to review the effects of L-DOPA medication in Parkinson's disease on cognitive functions in the broad domains of cognitive flexibility and working memory. The review places the effects in Parkinson's disease within a framework of evidence from studies with healthy human volunteers, rodents and non-human primates as well as computational modeling work. It is suggested that beneficial or detrimental effects of L-DOPA are observed depending on task demands and basal dopamine levels in distinct parts of the striatum. The study of the beneficial and detrimental cognitive effects of L-DOPA in Parkinson's disease has substantial implications for the understanding and treatment development of cognitive abnormalities in Parkinson's disease as well as normal health.

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Crossref · 10.1016/j.neubiorev.2005.03.024

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  • Executive control emerges from the interplay between cognitive stability and flexibility, related to the prefrontal cortex and striatum, both modulated by dopamine.

    “Interestingly, executive control has been considered to emerge from the interplay between cognitive stability (defined as the maintenance of task-relevant representations) and flexibility (defined as the ability to adapt, update, and shift between informational states) – two major, but partially antagonistic functions of cognitive control, related correspondingly to the prefrontal cortex (PFC) and”

    From Working Memory Reloaded: Tyrosine Repletes Updating in the N-Back Task (2013) · cites this paper as Cools, 2006

  • High dopamine levels in the PFC that benefit stability may reduce flexible alteration of cognitive representations, while low PFC dopamine levels may benefit flexible updating but impair maintenance against distractors.

    “According to Cools (2006), the same high DA levels in the PFC that are beneficial for the stability of representations may reduce the ability to flexibly alter cognitive representations. Low DA levels in the PFC may in turn be beneficial for the flexible updating of cognitive representations, but at the same time impair the ability to maintain representations in the face of intervening distractors”

    From Working Memory Reloaded: Tyrosine Repletes Updating in the N-Back Task (2013) · cites this paper as Cools (2006)

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Authors
Cools, R.
Affiliations
University of California, Berkeley (US)
Corresponding author
Cools, Roshan
Venue
Neuroscience & Biobehavioral Reviews
Publisher
Elsevier BV
Published
2006-01
Volume
30
Issue
1
Pages
1-23
ISSN
0149-7634 (ISSN-L)
OpenAlex
W1972010893
Cited by
903
References
25
Citations by year
2026: 21 · 2025: 31 · 2024: 38 · 2023: 30 · 2022: 27 · 2021: 29 · 2020: 34 · 2019: 37 · 2018: 36 · 2017: 56 · 2016: 67 · 2015: 56 · 2014: 54 · 2013: 70 · 2012: 63
FWCI
4.64
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroscience & Biobehavioral Reviews (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
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
Parkinson's disease, L-DOPA, dopaminergic modulation, cognitive impairment, cognitive flexibility, working memory, striatum, computational modeling, rodent models, non-human primates
MeSH terms
Animals, Antiparkinson Agents, Cognition, Dopamine, Humans, Levodopa, Neuronal Plasticity, Parkinson Disease

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