ArticleArchives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists2025
Executive Functions are Independently Associated with Cognitive Dispersion in HIV Disease.
Article in Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Who cites it
3 citing papers in PubMed.
- Reliability and stability of cognitive intraindividual variability indices among cognitively unimpaired older adults.The Clinical neuropsychologist · 2026Article
- Exploring the potential of cognitive intra-individual variability in HIV care and research in adults with HIV: a concept analysis.Applied neuropsychology. Adult · 2026Review
- Utilizing Intraindividual Cognitive Variability to Predict Early Neuronal Synuclein Disease Progression.medRxiv : the preprint server for health sciences · 2026Article
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Authors and funding
4 authors.
Funding
Abstract
objectivePeople with HIV (PWH) can demonstrate elevated cognitive intraindividual variability (IIV-dispersion) that is associated with everyday functioning problems. Higher IIV-dispersion is theorized to reflect lapses in executive aspects of cognitive control, but few studies have directly evaluated this possibility.
method72 PWH completed the Cogstate and clinical measures of executive functions, psychomotor speed, and episodic memory. IIV-dispersion was calculated with the coefficient of variation (CoV) from six age-adjusted Cogstate subtest scores.
resultsMultiple regression showed that the three domain-level cognitive predictors explained 8% of the variance in Cogstate CoV (p = .03). Within this model, poorer executive functions were moderately associated with higher Cogstate CoV (p = .01), but the psychomotor and episodic memory domains were not (ps > .05).
conclusionsFindings align with cognitive theory in demonstrating IIV-dispersion is uniquely associated with independent measures of executive functions among PWH. Future experimental and mechanistic studies are needed to determine the precise executive aspects of IIV-dispersion.
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