The bilateral Left Cerebrum.Frontal Lobe.Medial Frontal Gyrus.Gray Matter.Brodmann area 8, as defined in the Talairach 1 mm atlas, corresponds to a portion of the dorsomedial frontal cortex located anterior to the premotor areas and superior to the cingulate sulcus, encompassing the medial aspect of the superior frontal gyrus. Brodmann area 8 is classically associated with higher-order motor control, including preparation and planning of eye movements (particularly frontal eye fields in its more lateral aspects), as well as executive functions such as voluntary attention, decision-making, and aspects of working memory. This region exhibits dense connectivity with other prefrontal areas, premotor and motor cortices, parietal association areas, and subcortical structures, supporting its integrative role in coordinating cognitive control with motor output. There is no direct link for this exact Talairach label; a related structure is Brodmann area 8.
The bilateral left medial frontal gyrus (Brodmann area 8) has been implicated in several genetic and genome-wide association findings through its roles in cognitive control, eye movement, and higher-order executive functions, with structural and functional variation in this region repeatedly linked to polygenic influences on intelligence, working memory, and general cognitive ability, including loci near genes such as CHRNA4, COMT, and CACNA1C that modulate fronto-striatal and fronto-parietal circuitry; GWAS of cortical thickness and surface area have identified multiple SNPs associated with medial frontal morphology, many mapping to neurodevelopmental and synaptic genes (e.g., MIR137, HMGA2, and genes involved in Wnt and axon guidance pathways), and this region shows altered gray matter volume or activation patterns in carriers of risk alleles for schizophrenia, bipolar disorder, major depressive disorder, ADHD, and autism spectrum conditions, consistent with large psychiatric GWAS demonstrating that polygenic risk for these disorders often converges on medial and dorsolateral prefrontal circuitry; additional studies link BA8/medial frontal structure and connectivity to genetic variants associated with impulsivity, risk-taking, and personality traits such as conscientiousness and neuroticism, as well as to common Alzheimer’s disease and frontotemporal dementia risk loci that influence prefrontal atrophy patterns, although the effects are typically small and largely distributed across many genes rather than confined to a single locus specific to this Talairach-defined region.
Overview generated by GPT-4o (2026).
Region ID: 1033
Hemisphere: bilateral
Atlas: Talairach labels 1mm
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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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