ArticleAnnals of neurosciences2020
Neuro-Cognitive Profile of Morning and Evening Chronotypes at Different Times of Day.
Article in Annals of neurosciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Effects of morning versus evening high-intensity exercise on electroencephalographic and autonomic responses in middle-aged women.Physical activity and nutrition · 2026Article
- Around the Clock: Wearing a Flex-Printed trEEGrid Electrode Patch and Miniaturized Amplifier for Nearly 24 Hours Across Daytime and Overnight EEG Sessions.Sensors (Basel, Switzerland) · 2026Article
- Chronotype in alpha-tACS: Preliminary evidence hints at sleep quality modulation of aftereffects in evening types in the morning.Neurobiology of sleep and circadian rhythms · 2025Article
- Cognitive, social, and behavioral effects of music and motor intervention in children with autism spectrum disorder: the role of time of day.Frontiers in pediatrics · 2025Article
- The Role of Cannabis and The Endocannabinoid System in Sleep Regulation and Cognition: A Review of Human and Animal Studies.Behavioral sleep medicine · 2024Review
- Time of day and chronotype in the assessment of cognitive functions.Postepy psychiatrii neurologii · 2023Review
- Hair Follicles as a Critical Model for Monitoring the Circadian Clock.International journal of molecular sciences · 2023Review
- EEG-ERP Correlates of Cognitive Dysfunction in Polycystic Ovarian Syndrome.Annals of neurosciences · 2022Article
- Dietary Intake of Polyphenols Enhances Executive/Attentional Functioning and Memory with an Improvement of the Milk Lipid Profile of Postpartum Women from Argentina.Journal of Intelligence · 2022Article
- Chronotype and Time of Day Effects on a Famous Face Recognition Task with Dynamic Stimuli.International journal of psychological researchArticle
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundChronotype is the circadian time preference for sleep-wake timings. However, its impact on cognitive performance is least explored.
objectiveThe present study investigated the effect of chronotype (morning "M" vs. evening "E") on cognitive measures as a function of time of the day. In addition, the correlation between electroencephalogram (EEG) waves and subjective/objective cognitive measures were investigated.
methodCognitive status of 28 adult male subjects (15 "M" and 13 "E") was assessed objectively through event-related potential (ERP) by administering visual odd ball paradigm test and subjectively through Montreal Cognitive Assessment questionnaire. In addition, 20 to 30 min of resting EEG was recorded. Recordings were done from 8 to 10 am and from 4 to 6 pm on a single day. Power spectral analysis of EEG for alpha and beta waves at PZ and FZ cortical sites was done after subjecting selected epochs to fast Fourier transformation. Also, latency and amplitude of P300 potential from event-related potential record were measured. Appropriate statistical tests were applied for analysis.
resultsHigher alpha and beta power was observed in "E" at PZ in the evening. "M" showed increased P300 latency and amplitude during evening session for frequent and rare stimuli and vice versa in "E."' Significant negative correlation was seen between latency of rare stimuli and alpha and beta power at FZ site during evening in "E" chronotype only.
conclusionResult indicates better attention and alertness during evening hours in evening chronotypes and vice versa in morning chronotypes. The findings could be implemented to schedule the mental performance/cognitive load according to individual chronotype.
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