The bilateral Occipital Fusiform Gyrus, as defined in the Harvard–Oxford cortical maxprob atlas (thr25, 1 mm), comprises ventral occipital cortex along the fusiform gyrus in both hemispheres, situated medial to the inferior temporal gyrus and lateral to the lingual gyrus, extending anteriorly from the occipital pole toward posterior temporal regions. This region participates in high-level visual processing, including aspects of object, face, and word-form recognition, integrating complex visual features into category-specific representations. Its cytoarchitectonic and functional organization overlaps with portions of visual association cortex (e.g., lateral occipital and ventral visual stream areas) and is interconnected with other ventral occipitotemporal regions involved in perception and memory. There is no direct Wikipedia article for the “Occipital Fusiform Gyrus”; a closely related and encompassing structure is the Fusiform gyrus.
The bilateral occipital fusiform gyrus, corresponding largely to occipitotemporal visual association cortex involved in face, object, and word-form processing, has been implicated in several genetic and GWAS-based associations via imaging–genetics and neuropsychiatric studies, although relatively few findings are specific to the exact Harvard–Oxford “Occipital Fusiform Gyrus” label. Polygenic effects from neurodevelopmental and psychiatric risk loci (notably schizophrenia, autism spectrum disorder, and major depressive disorder) have been associated with altered fusiform/occipitotemporal cortical thickness and surface area, often through large consortia such as ENIGMA and UK Biobank, with genes involved in synaptic organization, axon guidance, and neurodevelopment (e.g., variants near DCC, GRIN2A, and other glutamatergic and neurodevelopmental genes) contributing to occipital and ventral visual cortex morphology. GWAS of occipital lobe or visual association cortex volume and cortical measures show modest but significant heritability, with multiple common variants of small effect distributed across the genome rather than a single dominant locus, and polygenic scores for cognitive abilities and educational attainment correlating with structural differences in ventral visual pathways that include the occipital fusiform area. Genetic studies of developmental prosopagnosia and face-processing traits have also implicated fusiform/occipitotemporal regions, though specific causal genes remain unclear, and monogenic syndromes affecting visual recognition (such as some forms of posterior cortical atrophy or syndromic neurodevelopmental disorders) often involve structural or functional abnormalities in fusiform and adjacent occipital regions. Overall, known genetic associations suggest that variation in this region reflects a diffuse polygenic architecture related to neurodevelopment, visual and higher-order cognitive processing, and vulnerability to neuropsychiatric and neurodegenerative conditions, rather than a small set of region-specific genes.
Overview generated by GPT-4o (2026).
Region ID: 40
Hemisphere: bilateral
Atlas: HarvardOxford cort maxprob thr25 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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