[Changes in reaction potentials in neurotic depression].
An investigation, comparing the event related potential (ERP) of depressive patients and a control group is presented. The components N100, P200, N200 and P300 have been recorded during the Stroop colour-word-interference test. The task is to name the colour of a colour word presented in a different colour, to read the word of an achromatic colour word and to name the colour of colour strips. The reaction time to name the colour or the word resulted in a general retardation for the patients with neurotic depression in comparison to the control group. The components of the acoustic evoked potentials, recorded after a warning stimulus S1, 4 s before the single Stroop stimuli showed no differences in amplitude or latency. The visual evoked potentials, associated to the Stroop stimuli showed, in case of the neurotic depressive patients an increase of the P300-amplitude. This result is interpreted as an increased cognitive effort of the patients in case of the employed experimental approach.
D002540:Cerebral Cortex / Q000503:physiopathology*; D003118:Color Perception / Q000502:physiology; D003463:Cues; D003866:Depressive Disorder / Q000503:physiopathology*; D004569:Electroencephalography; D005072:Evoked Potentials, Auditory; D005074:Evoked Potentials, Visual; D006801:Humans; D011930:Reaction Time / Q000502:physiology; D012660:Semantics; D014796:Visual Perception / Q000502:physiology*
Anderungen der Reaktionspotentiale bei der neurotischen Depression.