Related Experiment Videos
Slow potential correlates of frontal function, psychosis, and negative symptoms
R J van den Bosch1, N Rozendaal, J M Mol
1University of Groningen, The Netherlands.
Psychiatry Research
|February 1, 1988
Abstract:
The contingent negative variation (CNV) was used to study cortical activation in frontal and central areas in psychotic and nonpsychotic patients. Psychotic patients showed a higher frontal relative to central CNV amplitude than nonpsychotic patients, a finding that was correlated with performance on a test of frontal function. Negative symptom ratings (physical anhedonia and social closeness) were correlated with relatively low frontal versus central CNV amplitude, but only in psychotic patients.