MRI Brain Structure Comparisons Across Sexual Orientation Groups

103 participants, including 30 homosexual men, 35 heterosexual men, and 38 heterosexual women, underwent multimodal MRI scans. Amirhossein Manzouri published this study in 2020, comparing cortical thickness, surface area, subcortical volumes, and resting-state functional connectivity across groups.

Use Cases

• Compare cortical thickness (Cth) measurements in the anterior cingulate cortex (ACC) and precuneus between homosexual men (HoM), heterosexual men (HeM), and heterosexual women (HeW).
• Analyze resting-state functional connectivity within the default mode network, which includes the ACC and precuneus, across the three participant groups.
• Investigate subcortical structural volumes, particularly in regions like the thalamus and hypothalamus, for differences linked to sexual orientation.
• Examine surface area (SA) and cortical thickness covariations between the left occipito-temporal cortex and other regions among HoM.

Strengths

• 103 total participants provide a basis for group comparisons.
• Multimodal MRI data includes cortical thickness, surface area, subcortical volumes, and functional connectivity.
• Specific anatomical regions like the ACC, precuneus, and thalamus are targeted for analysis.

Limitations

• Sample size is modest, with groups of 30, 35, and 38 participants.
• Data is from a single study published in 2020, with no indication of ongoing updates.
• Geographic and demographic coverage of the participant pool is unknown.

Provenance

Source

Amirhossein Manzouri

Collection Method

MRI scans measuring cerebral anatomy and resting-state functional connectivity.

Time Range

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Freshness

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Geography

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