Bilateral Right Cerebrum.Frontal Lobe.Medial Frontal Gyrus.Gray Matter.Brodmann area 8 corresponds to a dorsal segment of the medial frontal cortex involved primarily in executive functions, oculomotor control, and higher-order motor planning. In the Talairach 2 mm Atlas, this region lies anterior to the premotor cortex and superior to the cingulate gyrus, integrating visual and spatial information to guide voluntary eye movements, attention shifts, and decision-making processes. Functionally, Brodmann area 8 contributes to planning complex, goal-directed behaviors and may participate in aspects of working memory and cognitive control. There is no direct link for this exact Talairach label; a related and encompassing structure is Brodmann area 8.
The medial frontal gyrus (Brodmann area 8) has been implicated in several genetic and neuropsychiatric associations, largely through imaging genetics and GWAS of cortical structure and function rather than region-specific Talairach-based studies. Large-scale GWAS of cortical thickness and surface area (e.g., ENIGMA and UK Biobank analyses) have identified loci in genes related to neurodevelopment and synaptic function—such as MAPT, CENPW, KIAA0586, and others—whose variants influence frontal lobe morphology, including medial frontal regions overlapping BA8. Functional imaging genetics studies link COMT Val158Met and other dopaminergic and serotonergic variants (e.g., DRD2, 5-HTTLPR/SLC6A4) to altered activation and connectivity in medial frontal and adjacent dorsolateral prefrontal regions during working memory, cognitive control, and decision-making tasks, processes for which BA8 is central. GWAS and candidate gene studies in schizophrenia, bipolar disorder, major depressive disorder, ADHD, and obsessive–compulsive disorder frequently report structural or functional abnormalities in medial frontal cortex, with polygenic risk scores for these disorders correlating with reduced gray matter volume or altered functional connectivity in frontal midline/BA8 territories. Genetic risk for traits such as general cognitive ability, educational attainment, and impulsivity also shows associations with medial and superior frontal structure and activity, suggesting that polygenic variation in neurodevelopmental, neurotransmission, and synaptic plasticity pathways contributes to individual differences in BA8 anatomy and function; however, most findings relate to broader frontal or medial prefrontal regions, and precise, BA8-specific genetic associations remain limited.
Overview generated by GPT-4o (2026).
Region ID: 1034
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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