[Neurophysiologic mechanisms of the disorders in recognition of emotions in endogenic depression].
In 46 male patients with endogenic depressions of different nosology (22 patients with affective disorder, 24 with juvenile slow-progredient schizophrenia) and 22 healthy individuals (a control group) visual evoked potentials (EPs) were registered during recognition of emotionally positive, negative or neutral facial expression. It was found that deficient recognition of emotions in depressions was determined by alteration of different stages of information analysis. In inferio-temporal and occipetal cortical areas the Eps revealed delayed primary analisis of visual information and reduction of components responsible for classification stage and decision making. In anteriocentral cortical areas only late stages of analysis were altered, and they were depending on nosology of depressive sindrom. Dynamics of topographic maps revealed disturbance of analysis in the right hemisphere in patients with affective disorders and in left hemisphere in schisophrenics. In both groups of patients deficit of interhemispheric transfere was found.
Mikhaĭlova
E S
ES
Tsutsul'kovskaia
M Ia
MIa
Oleĭchik
I V
IV
D000328:Adult; D000339:Affect; D001921:Brain / Q000503:physiopathology*; D003865:Major Depressive Disorder / Q000175:diagnosis / Q000503:physiopathology* / Q000523:psychology*; D005074:Evoked Potentials, Visual / Q000502:physiology; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D021641:Recognition, Psychology; D012559:Schizophrenia / Q000503:physiopathology*