Heschl’s Gyrus Duplication Pattern in Individuals at Risk of Developing Psychosis and Patients With Schizophrenia

Takahashi, Tsutomu and Sasabayashi, Daiki and Takayanagi, Yoichiro and Higuchi, Yuko and Mizukami, Yuko and Nishiyama, Shimako and Furuichi, Atsushi and Kido, Mikio and Pham, Tien Viet and Kobayashi, Haruko and Noguchi, Kyo and Suzuki, Michio (2021) Heschl’s Gyrus Duplication Pattern in Individuals at Risk of Developing Psychosis and Patients With Schizophrenia. Frontiers in Behavioral Neuroscience, 15. ISSN 1662-5153

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Abstract

An increased prevalence of duplicated Heschl’s gyrus (HG), which may reflect an early neurodevelopmental pathology, has been reported in schizophrenia (Sz). However, it currently remains unclear whether individuals at risk of psychosis exhibit similar brain morphological characteristics. This magnetic resonance imaging study investigated the distribution of HG gyrification patterns [i.e., single HG, common stem duplication (CSD), and complete posterior duplication (CPD)] and their relationship with clinical characteristics in 57 individuals with an at-risk mental state (ARMS) [of whom 5 (8.8%) later developed Sz], 63 patients with Sz, and 61 healthy comparisons. The prevalence of duplicated HG patterns (i.e., CSD or CPD) bilaterally was significantly higher in the ARMS and Sz groups than in the controls, whereas no significant differences were observed in HG patterns between these groups. The left CSD pattern, particularly in the Sz group, was associated with a verbal fluency deficit. In the ARMS group, left CSD pattern was related to a more severe general psychopathology. The present results suggest that an altered gyrification pattern on the superior temporal plane reflects vulnerability factors associated with Sz, which may also contribute to the clinical features of high-risk individuals, even without the onset of psychosis.

Item Type: Article
Subjects: Institute Archives > Biological Science
Depositing User: Managing Editor
Date Deposited: 10 Apr 2023 04:32
Last Modified: 21 Mar 2024 04:16
URI: http://eprint.subtopublish.com/id/eprint/1159

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