The bilateral Right Cerebrum.Frontal Lobe.Middle Frontal Gyrus, as defined in the Talairach 2 mm atlas, corresponds to portions of the middle frontal gyrus in the right hemisphere, extending across both anterior and posterior segments within the frontal lobe. This region is part of the dorsolateral prefrontal cortex and is implicated in higher-order cognitive functions, including working memory, attention control, planning, decision-making, and executive regulation of behavior. It also participates in the integration of sensory and mnemonic information and in the modulation of goal-directed actions via connections with parietal, premotor, and limbic areas. Although there is no specific Wikipedia article titled exactly “Right Cerebrum.Frontal Lobe.Middle Frontal Gyrus,” this region is encompassed within the broader Middle frontal gyrus entry.
The bilateral right middle frontal gyrus (MFG), part of the dorsolateral prefrontal cortex as defined in the Talairach 2 mm atlas, is a key hub for executive function, working memory, and cognitive control, and numerous genetic studies have implicated variants affecting structure and function in this region. Large-scale neuroimaging GWAS (e.g., ENIGMA and UK Biobank consortia) have identified associations between common variants near genes involved in neurodevelopment (such as MAPT, KIAA0586, and others) and cortical thickness, surface area, and volume in frontal regions that include the MFG. Polygenic risk scores for schizophrenia, bipolar disorder, major depressive disorder, and ADHD frequently correlate with altered activation and connectivity of the right MFG during cognitive and emotional tasks, and risk loci in genes related to synaptic plasticity and glutamatergic signaling (e.g., GRM3, CACNA1C) have been linked to abnormal prefrontal function. GWAS of cognitive performance, educational attainment, and general intelligence repeatedly show enrichment of associated variants in genes expressed in the frontal cortex, with imaging genetics studies connecting these polygenic profiles to individual differences in right MFG activation during working memory and reasoning tasks. Additionally, genetic risk for neurodegenerative and neurodevelopmental conditions—including Alzheimer’s disease, frontotemporal dementia, and autism spectrum disorder—shows functional and structural correlates in the middle frontal gyrus, suggesting that this region is a convergent target of diverse risk alleles impacting cortical development, synaptic connectivity, and higher-order cognition.
Overview generated by GPT-4o (2026).
Region ID: 199
Hemisphere: bilateral
Atlas: Talairach labels 2mm
Full Quality Version: Download MP4
Full Quality Version: Download MP4
Wali Sidiqyar*, Gaurav Rudravaram*, Elyssa M. McMaster, Trent M. Schwartz, Adam M. Saunders, Kurt G. Schilling, Bennett A. Landman "Introducing SPINS: A Shared Public Visualization Library of Neuroanatomical Structures." Medical Imaging with Deep Learning- short paper
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