Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Diurnal type and hemispheric asymmetry

X Corbera1, C Grau

  • 1Universitat de Barcelona, Department d'Educació i Psicologia, Tarragona, Spain.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|September 1, 1993
PubMed
Summary

Morning-types (M-types) and Evening-types (E-types) show distinct patterns of brain hemisphere engagement during cognitive tasks. This research explores how chronotype influences hemispheric processing and circadian rhythms.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Radiotherapy quality assurance of patients with squamous cell carcinoma of the head and neck included in the DAHANCA 19 randomised phase III trial.

Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology·2025
Same author

Danish Head and Neck Cancer Group (DAHANCA) Radiotherapy Quality Assurance Guidelines 2025. Update and new chapters: Planning of complex targets, hypofractionation, planning of reirradiation, target definition after induction chemotherapy, and clarification of the guidelines for elective targets.

Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology·2025
Same author

Danish and Swedish National Data Collections for Cancer - Solutions for Radiotherapy.

Clinical oncology (Royal College of Radiologists (Great Britain))·2024
Same author

Water-Based Polyurethane Dispersions: A Detailed Analysis of the Particle Charge Using Soft and Hard Particle Model.

Langmuir : the ACS journal of surfaces and colloids·2024
Same author

Acute toxicities in proton therapy for head and neck cancer - A matched analysis of the DAHANCA 35 feasibility study.

Clinical and translational radiation oncology·2024
Same author

Response to the letter by Boon and colleagues.

Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology·2024

Area of Science:

  • Cognitive Neuroscience
  • Chronobiology
  • Psychology

Background:

  • Morning-types (M-types) and Evening-types (E-types) may differ in their reliance on subvocalization strategies.
  • This suggests potential differences in habitual hemispheric engagement between chronotypes.

Purpose of the Study:

  • To investigate the hypothesis that M-types and E-types exhibit differential hemispheric engagement.
  • To explore the relationship between chronotype, cognitive task performance, and circadian rhythms.

Main Methods:

  • 48 right-handed women (24 M-types, 24 E-types) performed verbal and spatial hemifield tachistoscopic tasks.
  • Oral temperature was recorded at four times daily to assess circadian phase.
  • Reaction times and error rates were analyzed in relation to chronotype and visual field.

Main Results:

  • E-types exhibited larger amplitude and phase-delayed oral temperature curves, indicating distinct circadian profiles.
  • While E-types were slower overall, no phase differences in reaction time were observed between M-types and E-types.
  • M-types showed selective left-hemispheric engagement for verbal tasks (left-visual-field), while E-types showed right-hemispheric engagement for spatial tasks (right-visual-field).

Conclusions:

  • Chronotype influences hemispheric mode selection during cognitive tasks.
  • These findings suggest that M-types and E-types may utilize different neural strategies influenced by their circadian timing.
  • The results have implications for understanding the interplay between circadian rhythms and cognitive processing.

Related Experiment Videos