A medical study was held where 34 patients with depressive disorder took part. ICA method was
used to separate eight components from event-related potentials in Go-NoGo test. The following
signifi cant diff erences were found in both age groups: lower half-waves amplitude independent
components of evoked potentials related to the primary visual stimulus processing, monitoring of
actions, involvement in the action, the suppression of the expected action, a response to a new
stimulus. According to sLORETA sources of these components localize in prefrontal, occipital cortex
and cingular gyrus.