The right planum temporale is a cortical region located on the superior temporal plane, posterior to Heschl’s gyrus, forming part of the superior temporal lobe and overlying the posterior Sylvian fissure. It is cytoarchitectonically associated with auditory association cortex and is implicated in high-level auditory processing, including spectrotemporal analysis of complex sounds, music perception, and aspects of language, although functional lateralization often emphasizes language dominance in the left hemisphere. The right planum temporale shows considerable interindividual variability in size and asymmetry and has been linked to functions such as pitch processing and spatial hearing, as well as to neurodevelopmental and neuropsychiatric conditions when its structure or connectivity is altered. No direct Wikipedia article exists for the right planum temporale; a related entry is Planum temporale.
The right planum temporale, a key region for auditory and language-related processing, has been implicated in several genetic and imaging-genetics studies, though findings are still emerging and often hemisphere- or modality-specific. Twin and family studies show substantial heritability for planum temporale surface area and asymmetry, with estimates commonly in the moderate-to-high range, and variants affecting genes involved in neuronal migration, cortical patterning, and synaptic function (such as those in the DCDC2, KIAA0319, and ROBO family pathways) have been associated with structural variation in temporal language regions, including the planum temporale, particularly in the context of dyslexia and language impairment. GWAS of cortical surface area and thickness (e.g., ENIGMA and UK Biobank–based consortia) have identified multiple loci across the genome that influence temporal lobe morphology, and some of these loci overlap with genetic risk regions for neurodevelopmental and psychiatric disorders, including autism spectrum disorder, schizophrenia, and attention-deficit/hyperactivity disorder, in which atypical planum temporale anatomy or lateralization has been reported. Additionally, genetic correlations have been observed between temporal cortical measures and traits such as educational attainment, cognitive performance, musical aptitude, and reading-related skills, suggesting shared polygenic influences on right planum temporale structure and higher-order auditory–language functions, although specific variants uniquely and robustly tied to the right planum temporale in the brainCOLOR Atlas parcellation remain to be definitively established.
Overview generated by GPT-4o (2026).
Region ID: 100
Hemisphere: Right
Atlas: brainCOLOR
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Full Quality Version: Download MP4
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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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