Dimensional complexity reflects the number of independent variables
contributing to a dynamic process. EEG epochs recorded from 12
neuroleptic-free schizophrenic patients and 11 normal control subjects were
Laplacian-filtered to highlight activity specific to prefrontal and
parietal areas, and dimensional complexity measures of the resulting
signals were then derived. Complexity of EEG waveforms generated by
schizophrenic patients was depressed relative to that of normal subjects,
especially in left frontal and right parietal regions. These data suggest
that complexity of underlying is also reduced.Abstract Teaser