ArticleJournal of clinical and experimental neuropsychology2021
Sharper in the morning: Cognitive time of day effects revealed with high-frequency smartphone testing.
Article in Journal of clinical and experimental neuropsychology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
39 citing papers in PubMed.
- Article
- Visual Working Memory in Older Adults With and Without Early-Onset Depression: An Ecological Momentary Assessment Study.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2026Article
- Developing a psychological test battery to measure cognition in daily life.Behavior research methods · 2026Article
- The myth of digital biomarkers in Alzheimer's disease: how to make them a reality.Current opinion in psychiatry · 2026Review
- Digital Assessment of Objective and Patient-Reported Cognition Across Migraine Phases: Results from the MIND Cohort.medRxiv : the preprint server for health sciences · 2026Article
- Remote assessments of sleep and cognition in cognitively normal older adults at risk for Alzheimer disease.Sleep medicine · 2026Article
- Clinical translation of fluid, imaging, and digital biomarkers for Alzheimer's disease.Alzheimer's research & therapy · 2026Review
- Bridging Gaps in Sundown Syndrome Research: a Scoping Review and Roadmap for Future Multimodal Approaches.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2025Article
- Diagnostic Accuracy of Touchscreen-Based Tests for Mild Cognitive Disorders: A Systematic Review and Meta-Analysis.Diagnostics (Basel, Switzerland) · 2025Review
- Impacts of Environmental Distractions and Interruptions on Unsupervised Digital Cognitive Assessments in Older Adults: Cognitive Ecological Momentary Assessment Study.JMIR mHealth and uHealth · 2025Article
- Practice effects on digital cognitive assessment tools: insights from the defense automated neurobehavioral assessment battery.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Circadian attributes of neurological and psychiatric disorders as basis for their medication chronotherapy.Advanced drug delivery reviews · 2025Review
- A scoping review of remote and unsupervised digital cognitive assessments in preclinical Alzheimer's disease.NPJ digital medicine · 2025Article
- Assessing Dynamic Cognitive Function in the Daily Lives of Youths With and Without Type 1 Diabetes: Usability Study.JMIR formative research · 2025Article
- The effects of shared, depression-specific, and anxiety-specific internalizing symptoms on negative and neutral episodic memories following post-learning sleep.Cognitive, affective & behavioral neuroscience · 2025Article
- Exploring the relationship between mean performance and within-person variability on smartphone-based cognitive testing in adults across the lifespan.NPP - digital psychiatry and neuroscience · 2025Article
- Adherence timescale impacts completion rates of high-frequency mobile cognitive assessments among older adults.Exploration of medicine · 2025Article
- Unlocking Cognitive Analysis Potential in Alzheimer's Disease Clinical Trials: Investigating Hierarchical Linear Models for Analyzing Novel Measurement Burst Design Data.Statistics in medicine · 2024Article
- Naturalistic assessment of reaction time variability in older adults at risk for Alzheimer's disease.Journal of the International Neuropsychological Society : JINS · 2024Article
- Chronotype, Time of Day, and Children's Cognitive Performance in Remote Neuropsychological Assessment.Behavioral sciences (Basel, Switzerland) · 2024Article
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
Decades of research has established a shift from an "eveningness" preference to a "morningness" preference with increasing age. Accordingly, older adults typically have better cognition in morning hours compared to evening hours. We present the first known attempt to capture circadian fluctuations in cognition in individuals at risk for Alzheimer disease (AD) using a remotely administered smartphone assessment that samples cognition rapidly and repeatedly over several days. Older adults (N = 169, aged 61-94 years; 93% cognitively normal) completed four brief smartphone-based testing sessions per day for 7 consecutive days at quasi-random time intervals, assessing associate memory, processing speed, and visual working memory. Scores completed during early hours were averaged for comparison with averaged scores completed during later hours. Mixed effects models evaluated time of day effects on cognition. Additional models included clinical status and cerebrospinal fluid (CSF) biomarkers for beta amyloid (Aβ42) and phosphorylated tau181 (pTau). Models with terms for age, gender, education,
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