Neural correlates of prospection impairments in schizophrenia: Evidence from voxel-based morphometry analysis

Zhuo Ya Yang, Shuang Kun Wang, Ying Li, Yi Wang, Yong Ming Wang, Han Yu Zhou, Xin Lu Cai, Eric FC Cheung, Ho Keung David Shum, Ongur Dost, Raymond CK Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

Prospection, which has a close relationship with motivation and goal-directed behavior, could be a potential target for alleviating negative symptoms. The present study aimed to examine the structural neural correlates of prospection impairments and the involvement of working memory in prospection in schizophrenia patients. Thirty-seven patients with schizophrenia and 28 healthy controls were recruited and all of them completed a prospection task. Working memory was assessed with the Letter Number Span test. In addition, all participants underwent a structural MRI scan. Voxel-based morphometry (VBM) analysis was used to measure grey matter (GM) volume. We found that in schizophrenia patients, GM loss in the right lateral prefrontal cortex (PFC) and the right ventral medial PFC was correlated with decreased internal details in the prospection task. Moreover, GM volume of the right lateral PFC was found to mediate the relationship between working memory and internal details in these patients. In conclusion, GM loss in the PFC is associated with prospection impairments in schizophrenia patients. Working memory deficits may partially account for prospection impairments in schizophrenia patients.

Original languageEnglish
Article number110987
JournalPsychiatry Research - Neuroimaging
Volume293
DOIs
Publication statusPublished - 30 Nov 2019

Keywords

  • Prospection
  • Schizophrenia
  • Voxel-based morphometry
  • Working memory

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Psychiatry and Mental health

Cite this