The bilateral Left Cerebrum.Frontal Lobe.Superior Frontal Gyrus.Gray Matter.Brodmann area 8 corresponds to a dorsolateral prefrontal cortical region located in the superior frontal gyrus anterior to the premotor cortex and bordering the frontal eye fields. Brodmann area 8 is implicated in higher-order motor planning, particularly the control of saccadic eye movements, as well as aspects of attention, working memory, and executive control. In the Talairach 1 mm Atlas, this region is defined cytoarchitectonically and spatially within the frontal lobe, with its gray matter contributing to networks involved in goal-directed behavior, decision making, and the integration of sensory information for voluntary action. There is no direct Wikipedia article specifically for “Left Cerebrum.Frontal Lobe.Superior Frontal Gyrus.Gray Matter.Brodmann area 8”; a closely related entry is Brodmann area 8.
The bilateral superior frontal gyrus (BA8) in the left frontal lobe, as defined in Talairach 1 mm atlases, has been implicated in multiple genetic and GWAS-based associations through its roles in cognitive control, working memory, and motor planning. Imaging–genetics studies consistently link common variants in genes affecting synaptic plasticity and frontal cortical development—such as COMT (e.g., Val158Met), BDNF (e.g., Val66Met), DRD2/ANKK1, and DISC1—to variability in gray matter volume, cortical thickness, and functional activation in superior frontal regions including BA8, often in the context of executive function and working memory tasks. Large-scale neuroimaging GWAS (e.g., ENIGMA and UK Biobank datasets) have identified polygenic influences on frontal lobe morphology, with loci near genes involved in neurodevelopment, axon guidance, and synaptic signaling (such as MAPT, genes in the major histocompatibility complex, and other cortical surface–associated loci) contributing to interindividual variation in superior frontal surface area and thickness, though many findings are not BA8-specific but pertain to broader superior frontal or dorsolateral prefrontal territories. Clinically, genetic risk variants for schizophrenia, bipolar disorder, major depressive disorder, and ADHD—particularly those conferring altered prefrontal connectivity and dopamine or glutamate signaling—have been associated with structural and functional abnormalities in superior frontal cortex, including BA8, while Parkinson’s disease and other movement disorders show genetic effects on frontostriatal circuits that involve BA8-related oculomotor and motor planning fields; however, most GWAS map associations to larger frontal networks rather than to the Talairach-defined BA8 region alone, and current evidence remains largely indirect, relying on parcellation-based imaging traits and polygenic risk scores rather than single, region-specific risk genes.
Overview generated by GPT-4o (2026).
Region ID: 1035
Hemisphere: bilateral
Atlas: Talairach labels 1mm
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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