title: Structural correlates of auditory hallucinations in schizophrenia: a meta-analysis.
abstract: 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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Division of Psychiatry, University of Nottingham, A Floor, South Block, Queen's Medical Centre, Nottingham, NG7 2UH, UK. Lena.Palaniyappan@nottingham.ac.uk
authors.forename: Lena
authors.initials: L
authors.lastname: Palaniyappan
authors.forename: Vijender
authors.initials: V
authors.lastname: Balain
authors.forename: Joaquim
authors.initials: J
authors.lastname: Radua
authors.forename: Peter F
authors.initials: PF
authors.lastname: Liddle
mesh_terms: D001931:Brain Mapping; D002540:Cerebral Cortex / Q000473:pathology*; D016206:Databases, Bibliographic / Q000706:statistics & numerical data; D006212:Hallucinations / Q000209:etiology* / Q000473:pathology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D012559:Schizophrenia / Q000150:complications* / Q000473:pathology*