Alterations of cerebral white matter structure in psychosis and their clinical correlations: a systematic review of

Serena Parnanzone1, Dario Serrone1, Maria Cristina Rossetti1

  • 1Department of Biotechnological and Applied Clinical Sciences (DISCAB), University of L'Aquila, Italy.

Insights

Diffusion Tensor Imaging (DTI) studies reveal white matter abnormalities in schizophrenia. These findings highlight potential neurobiological underpinnings and guide future research directions for this disabling mental illness.

Area of Science:

  • Neuroimaging
  • Psychiatry
  • Neuroscience

Background:

  • Schizophrenia is a severe mental illness with significant disability.
  • Magnetic Resonance Imaging (MRI) studies suggest white matter (WM) pathology is implicated in schizophrenia's neurobiology.
  • White matter fiber tracts are crucial for cortical connectivity.

Purpose of the Study:

  • To review and summarize findings from Diffusion Tensor Imaging (DTI) studies on white matter in schizophrenia.
  • To discuss the clinical implications of observed white matter disruptions.
  • To identify limitations and suggest future research directions.

Main Methods:

  • Conducted a literature search of published DTI studies.
  • Utilized the National Centre for Biotechnology Information (NCBI) PubMed (MEDLINE) database.
  • Reviewed 95 published papers.

Main Results:

  • Summarized DTI findings related to white matter in various brain regions of patients with schizophrenia or at high risk for psychosis.
  • Identified disruptions in white matter fiber tracts.

Conclusions:

  • White matter pathology is a significant feature in the neurobiology of schizophrenia.
  • DTI provides valuable insights into brain connectivity in schizophrenia.
  • Further research is needed to address limitations and confounds in current DTI studies.