Toourknowledge,thisisthefirststudytoinvestigateassociations
betweenchangesinIQandbrainmeasuresduringschizophrenia.
The main finding was that changes in brain volume, especially
in globalandlocal corticalvolumeandthickness,showedrobust
positive correlations with changes in IQ during schizophrenia.
More specifically, IQchanges inpatientswith schizophreniawas
associatedwithchanges involumeandthickness inwidespread
regions,includingthefrontal,temporal,andparietalcortices,suggesting
that these areas are involved in cognitive functioning in
schizophrenia.