Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Lateralization

Lateralization

Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.

Cognitive Development During Adulthood

Cognitive Development During Adulthood

Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...

You might also read

Related Articles

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

Sort by

Same author

Elevated HbA1c is associated with advanced brain age in severe obesity.

medRxiv : the preprint server for health sciences·2026

Same author

Dissociable, species-specific impact of Aβ on static and dynamic functional connectomes.

bioRxiv : the preprint server for biology·2026

Same author

Deep learning-powered quantification of endocrine cells and CD3<sup>+</sup> T cells in the natural history of type 1 diabetes.

Diabetologia·2026

Same author

Developmental changes in the efficiency of attentional networks in very preterm children during the transition from preschool to school.

The British journal of developmental psychology·2026

Same author

World Kidney Day 2025 in Gdańsk: Results and Insights From Community-Based Screening for Kidney Diseases and Their Risk Factors.

Journal of primary care & community health·2026

Same author

Executive functioning in schizophrenia using a novel virtual reality-simulated workplace: validity, test-retest reliability, and links to competitive employment.

Scientific reports·2026

Search research articles

Related Experiment Video

Updated: Jan 19, 2026

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Published on: July 31, 2019

Improved Accuracy on Lateralized Spatial Judgments in Healthy Aging.

John B Williamson^1,2,3, Aidan Murphy^1,2, Damon G Lamb^1,2,3

¹Brain Rehabilitation Research Center (151A), Malcom Randall VAMC, 1601 SW Archer Road, Gainesville, FL 32608, USA.

Journal of the International Neuropsychological Society : JINS

|September 24, 2019

Summary

This summary is machine-generated.

Older adults show improved accuracy in spatial tasks, suggesting reduced hemispheric asymmetry. This challenges the right hemi-aging theory and supports the HAROLD model of aging brain networks.

Keywords:

Character line bisection Line bisection Line trisection Pseudoneglect Spatial attention

More Related Videos

Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function

Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function

Published on: January 26, 2024

Author Spotlight: Investigating the Impact of Aging on Hippocampal-Dependent Spatial Learning

Author Spotlight: Investigating the Impact of Aging on Hippocampal-Dependent Spatial Learning

Published on: February 16, 2024

Related Experiment Videos

Last Updated: Jan 19, 2026

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Published on: July 31, 2019

Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function

Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function

Published on: January 26, 2024

Author Spotlight: Investigating the Impact of Aging on Hippocampal-Dependent Spatial Learning

Author Spotlight: Investigating the Impact of Aging on Hippocampal-Dependent Spatial Learning

Published on: February 16, 2024

Area of Science:

Cognitive Neuroscience
Human Aging
Spatial Cognition

Background:

Healthy young adults exhibit pseudoneglect, a leftward spatial bias.
This bias often diminishes with age, with two hypotheses: right hemi-aging or Hemispheric Asymmetry Reduction in Older Adults (HAROLD).

Purpose of the Study:

To investigate age-related changes in spatial attention and bias.
To differentiate between the right hemi-aging and HAROLD hypotheses.

Main Methods:

Seventy healthy, right-handed participants (33 younger, 37 older) performed line bisection and trisection tasks.
Tasks involved solid and character-letter lines, with left and right trisections.

Main Results:

Both age groups showed leftward bias on solid line bisections/left trisections and rightward bias on character line bisections/right trisections.
Older adults demonstrated significantly greater accuracy across all spatial tasks compared to younger adults.

Conclusions:

Increased accuracy in older adults suggests reduced hemispheric asymmetry in spatial attention networks.
Findings support the HAROLD model over the right hemi-aging hypothesis for explaining age-related changes in spatial bias.