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JMD : Journal of Movement Disorders



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Review Article
Subjective Cognitive Complaints in Cognitively Normal Patients With Parkinson’s Disease: A Systematic Review
Jin Yong Hong, Phil Hyu Lee
J Mov Disord. 2023;16(1):1-12.   Published online November 10, 2022
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AbstractAbstract PDF
Subjective cognitive complaints (SCCs) refer to self-perceived cognitive decline and are related to objective cognitive decline. SCCs in cognitively normal individuals are considered a preclinical sign of subsequent cognitive impairment due to Alzheimer’s disease, and SCCs in cognitively normal patients with Parkinson’s disease (PD) are also gaining attention. The aim of this review was to provide an overview of the current research on SCCs in cognitively normal patients with PD. A systematic search found a lack of consistency in the methodologies used to define and measure SCCs. Although the association between SCCs and objective cognitive performance in cognitively normal patients with PD is controversial, SCCs appear to be predictive of subsequent cognitive decline. These findings support the clinical value of SCCs in cognitively normal status in PD; however, further convincing evidence from biomarker studies is needed to provide a pathophysiological basis for these findings. Additionally, a consensus on the definition and assessment of SCCs is needed for further investigations.


Citations to this article as recorded by  
  • Association of Neuropsychiatric Symptom Profiles With Cognitive Decline in Patients With Parkinson Disease and Mild Cognitive Impairment
    Young-gun Lee, Mincheol Park, Seong Ho Jeong, Kyoungwon Baik, Sungwoo Kang, So Hoon Yoon, Han Kyu Na, Young H. Sohn, Phil Hyu Lee
    Neurology.2023; 101(12): e1186.     CrossRef

JMD : Journal of Movement Disorders