Related Experiment Video
Updated: Jul 7, 2026
07:03
Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice
Published on: July 31, 2019
A lateralization of function approach to sex differences in spatial ability: a reexamination
1Department of Psychology, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA, USA.
Brain and Cognition
|February 23, 2008
Summary
Sex differences in spatial ability depend on brain organization and task type. Performance varied across spatial tasks, with hemisphere processing influencing results for men and women.
Area of Science:
- Cognitive Neuroscience
- Psychology
- Neuroscience
Background:
- The lateralization of function hypothesis proposes that sex differences in spatial ability arise from interactions between brain organization and specific spatial tasks.
- Previous research yielded unexpected findings on the mental rotation task, necessitating further investigation.
Purpose of the Study:
- To assess the lateralization of function hypothesis regarding sex differences in spatial ability.
- To evaluate explanations for prior unexpected results on the mental rotation task.
Main Methods:
- Experiment 1: Participants completed Water Level, Paper Folding, and mental rotation tasks (object-based/self-based) bilaterally.
- Experiment 2: Participants mentally rotated human stick figures or polygons.
Main Results:
- Sex differences were found only on the Water Level Task.
- A right hemisphere advantage was observed for Water Level and mental rotation tasks.
- Men outperformed women on polygon mental rotation, but not stick figure rotation; men showed a right hemisphere advantage for polygons, while women did not show hemisphere differences.
Conclusions:
- Hemisphere processing, task complexity, and stimulus type significantly influence spatial task performance in men and women.
- These factors contribute to understanding the nuances of sex differences in spatial abilities.
- The findings support an interactionist perspective on spatial cognition and sex differences.
Related Concept Videos
01:28Lateralization
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.
01:05Cerebral 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...