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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.

Cerebral Hemispheres

Cerebral Hemispheres

The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...

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Related Experiment Video

Updated: Mar 7, 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

A split-brain case study on the hemispheric lateralization of inhibitory control.

Nicholas D'Alberto¹, Margaret Funnell², Alexandra Potter¹

¹Department of Psychiatry, University of Vermont, Burlington, VT, USA.

Neuropsychologia

|February 28, 2017

Summary

The right hemisphere shows stronger inhibitory control than the left in split-brain patients. This study highlights right-hemisphere dominance in motor response inhibition.

Area of Science:

Neuroscience
Cognitive Psychology
Neurobiology

Background:

Inhibitory control is vital for managing diseases and substance abuse.
Neuroimaging studies show conflicting results on hemispheric dominance in motor inhibition.

Keywords:

Go/No-Go Response inhibition Stop signal

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