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Progressive cortical reorganisation: A framework for investigating structural changes in schizophrenia.

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Schizophrenia involves grey matter (GM) loss, but this accelerated loss may reflect the brain's attempt to reorganize. Quantifying this cortical reorganization early can help predict schizophrenia's course.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Neuroimaging

Background:

  • Schizophrenia is characterized by neuroanatomical abnormalities, particularly grey matter (GM) reduction.
  • This GM loss is most pronounced early in the illness, often viewed as a degenerative or developmental deficit.
  • The brain's capacity for self-remodeling in response to functional insults is often overlooked.

Purpose of the Study:

  • To propose that longitudinal structural changes in schizophrenia may represent cortical reorganization.
  • To highlight the potential of quantifying cortical reorganization in early-stage illness.
  • To enable prospective grading of the underlying pathophysiological processes in schizophrenia.

Main Methods:

  • Analysis of longitudinal structural changes in brain grey matter.
  • Investigation of micro- and macro-scale brain connectivity insights.
  • Focus on early-stage illness quantification.

Main Results:

  • Accelerated grey matter loss in schizophrenia may not solely be degenerative.
  • Structural changes could result from a distributed, albeit inefficient, cortical reorganization response.
  • Early quantification of reorganization is feasible.

Conclusions:

  • Cortical reorganization is a plausible explanation for observed structural changes in schizophrenia.
  • Understanding reorganization offers a new perspective beyond simple neurodegeneration.
  • Quantifying early cortical reorganization could improve patient stratification and treatment prognosis.