Gender differences in brain activation on a mental rotation task.

Area of Science:

• Neuroscience
• Cognitive Psychology
• Neuroimaging

Background:

• Gender differences in cognitive tasks are under-researched, particularly in neuroimaging studies of mental rotation.
• Previous studies often used limited female sample sizes or mixed-gender groups without detailed analysis.

Purpose of the Study:

• To investigate gender-specific brain activation patterns during a mental rotation task using functional magnetic resonance imaging (fMRI).
• To explore correlations between brain activity, task performance, and academic major.

Main Methods:

• 20 male and 20 female graduate students performed a mental rotation task involving cube figures.
• fMRI was used to measure brain activity, focusing on areas like the frontal gyrus and intraparietal sulcus (IPS).

Main Results:

• Both genders activated bilateral middle frontal gyrus, bilateral IPS, and left precuneus.
• Men showed increased activation in the right inferior frontal gyrus, left precuneus/posterior cingulate cortex/cuneus, and left middle occipital gyrus compared to women.
• Higher accuracy and faster response times correlated with increased bilateral IPS activation.
• No significant differences in brain activity were found based on academic major.

Conclusions:

• Men may utilize more strongly activated visual attention networks during mental rotation tasks compared to women.
• Findings suggest men employ a more automatic processing strategy, while women use a more top-down approach for complex visual reasoning.