BACKGROUND: Despite being one of the most common symptoms of schizophrenia, determining the neural correlates of auditory hallucinations still remains elusive with various studies providing inconsistent results. METHODS: We conducted a voxel-based meta-analysis of studies investigating the structural correlates of auditory hallucinations in schizophrenia. RESULTS: 7 datasets including 350 patients were identified. There was a significant negative correlation between the severity of hallucinations and gray matter volume in the left insula and right superior temporal gyrus. CONCLUSION: With its key role in stimulus evaluation and optimizing prediction (proximal salience), the insula is likely to be a cardinal region along with superior temporal gyrus in the mechanism of auditory hallucinations in schizophrenia.
BACKGROUND: Despite being one of the most common symptoms of schizophrenia, determining the neural correlates of auditory hallucinations still remains elusive with various studies providing inconsistent results. METHODS: We conducted a voxel-based meta-analysis of studies investigating the structural correlates of auditory hallucinations in schizophrenia. RESULTS: 7 datasets including 350 patients were identified. There was a significant negative correlation between the severity of hallucinations and gray matter volume in the left insula and right superior temporal gyrus. CONCLUSION: With its key role in stimulus evaluation and optimizing prediction (proximal salience), the insula is likely to be a cardinal region along with superior temporal gyrus in the mechanism of auditory hallucinations in schizophrenia.
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Authors: Stephanie M Hare; Alicia S Law; Judith M Ford; Daniel H Mathalon; Aral Ahmadi; Eswar Damaraju; Juan Bustillo; Aysenil Belger; Hyo Jong Lee; Bryon A Mueller; Kelvin O Lim; Gregory G Brown; Adrian Preda; Theo G M van Erp; Steven G Potkin; Vince D Calhoun; Jessica A Turner Journal: Schizophr Res Date: 2018-03-21 Impact factor: 4.939