ReviewActa medica academica2025
Anatomical Variations of the Auditory Cortex and their Clinical Significance, Prevalence and a Review of the Literature.
Review in Acta medica academica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
7 authors.
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Abstract
objectiveThis literature review aims to present anatomical variations in the primary and secondary auditory cortex, and an analysis of the categories (or classifications) of variation.
backgroundMany types of variation of the auditory cortex have been described, but there is a need to classify these variations and reveal their clinical implications.
methodsA detailed search in PubMed medical database was conducted, from October 2023 to November 2024 using the terms ("anatomical") AND ("variations" OR "categories" OR "types" OR "differences") AND ("human" OR "man") AND ("auditory cortex" OR "auditory cortex" [MeSH]) and 44 articles were found. Applying the inclusion and exclusion criteria, 29 articles were finally selected.
resultsA number of asymmetries have been recorded related to the size of the cortex between the two hemispheres, the number of Heschl's gyri and Heschl's gyrus surface variations, the distribution of gray and white matter, and the surface and size of the secondary auditory cortex. Reviews, and all prospective and retrospective studies, as well as case reports, were eligible for this review. DISCUSSION: Variations were found amongst patients of reduced auditory ability and the non-hearing impaired, musicians, amateur musicians, and non-musicians, right and left-handed people, men and women, and people with high and low pitch perception ability. Furthermore, variations were detected in people with dyslexia and learning disabilities.
conclusionA significant number of anatomical variations of the auditory cortex have been recorded, and closer research will contribute to our comprehension of the origin of some discrepancies in everyday clinical practice.
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