ArticleApplied neuropsychology. Adult
Intra-individual variability in cognitive performance predicts functional decline in Parkinson's disease.
Article in Applied neuropsychology. Adult. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.
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Who cites it
9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 14 citations in OpenAlex.
- Associations of cognitive intraindividual variability with Alzheimer's disease risk: A systematic review.The Clinical neuropsychologist · 2026Pooled it
- Cognitive intra-individual variability in breast cancer survivors: A systematic review.Applied neuropsychology. AdultPooled it
- Reliability and stability of cognitive intraindividual variability indices among cognitively unimpaired older adults.The Clinical neuropsychologist · 2026Article
- Utilizing Intraindividual Cognitive Variability to Predict Early Neuronal Synuclein Disease Progression.medRxiv : the preprint server for health sciences · 2026Article
- Characterizing intraindividual variability in bipolar disorder: links to cognition, white matter microstructure, and clinical variables.Psychological medicine · 2025Article
- Implications of Intra-Individual Variability in Motor Performance on Functional Mobility in Stroke Survivors.Geriatrics (Basel, Switzerland) · 2025Article
- Examining the Stability and Predictive Utility of Across- and Within-Domain Intra-Individual Variability in Mild Cognitive Impairment.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2025Article
- Does cognitive intra-individual variability predict change in everyday functioning performance in women with and without HIV in the Women's Interagency HIV Study?Applied neuropsychology. Adult · 2024Article
- The impact of psychiatric comorbidity on Parkinson's disease outcomes: a systematic review and meta-analysis.The Lancet regional health. Europe · 2024Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundCognitive deficits contribute to disability in Parkinson's disease (PD). Cognitive intra-individual variability (IIV) is associated with cognitive decline in age-related disorders, but IIV has not been related to functional ability in PD. We examined IIV in predicting functional ability in participants with PD.
methodsDe-identified National Alzheimer's Coordinating Center data (
resultsPD participants showed lower OTBM and greater IIV, GDS, and motor dysfunction than controls (
conclusionIIV independently predicts functional status in participants with PD while controlling for other variables. PD participants with functional impairment at follow up showed greater IIV than those without functional impairment at follow up.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.