The bilateral Frontal Orbital Cortex, as defined in the Harvard–Oxford cortical atlas, encompasses orbitofrontal regions on the ventral surface of the frontal lobes, situated above the orbits and extending medially and laterally anterior to the insula and inferior frontal gyrus. This cortex is heavily interconnected with limbic and paralimbic structures, including the amygdala, hippocampus, and medial prefrontal areas, and is supplied primarily by branches of the anterior cerebral and middle cerebral arteries. Functionally, it is implicated in reward valuation, decision-making under uncertainty, affective processing, and the integration of sensory and visceral information to guide flexible, goal-directed behavior; damage or dysfunction in this area has been associated with disinhibition, impaired social judgment, and altered emotional regulation. There is no direct Wikipedia article for “Frontal Orbital Cortex”; a closely related structure is the orbitofrontal cortex: Orbitofrontal cortex.
The bilateral frontal orbital cortex (overlapping the orbitofrontal cortex region in the Harvard-Oxford atlas) has been implicated in multiple genetic and genome-wide association studies linking its structure and function to diverse traits and disorders. Numerous imaging–genetics and GWAS consortia (e.g., ENIGMA, UK Biobank) have identified common variants in and near genes involved in synaptic function (such as CACNA1C, GRM3, and DRD2), neurodevelopment (e.g., TCF4, NCAM1, CNTNAP2), and neurotransmission and myelination (e.g., BDNF, NRG1, and genes in glutamatergic and GABAergic pathways) that correlate with orbitofrontal volume, cortical thickness, or functional activation. These genetic influences on frontal orbital/orbitofrontal morphology and activity have been associated with risk for major depressive disorder, bipolar disorder, schizophrenia, obsessive–compulsive disorder, and substance use disorders, as well as personality traits and behavioral phenotypes such as neuroticism, impulsivity, reward sensitivity, and decision-making. Polygenic risk scores for psychiatric conditions frequently show associations with structural or functional alterations in the frontal orbital region, and several risk loci for depression and addictive behaviors exhibit their strongest brain-structure effects in orbitofrontal and ventromedial prefrontal territories, underscoring this region’s role as a genetic convergence point for affective, cognitive, and reward-related traits.
Overview generated by GPT-4o (2026).
Region ID: 33
Hemisphere: bilateral
Atlas: HarvardOxford cort maxprob thr25 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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