[Reflection of disorders in the choice process reaction in cortical evoked activity of oligophrenic patients].
Evoked cortical potentials (the late positive component P 300) were registered in situations of differentiating visual stimula and deciding on selecting motor reactions in oligophrenic patients (12 cases) and normals (17 cases). The patients demonstrated disturbances in the process of selecting the reaction, which may be expressed in evoked cortical electrical activity: the amplitude of the component P 300 in the vertex to a stimula, related to selecting reactions, is not increased. An assumption is made that oligophrenic patients show no focal cortical activation in the anterior cortical areas in situations, requiring selection of motor reactions.
D000293:Adolescent; D000328:Adult; D002540:Cerebral Cortex / Q000503:physiopathology*; D002755:Choice Behavior / Q000502:physiology*; D005071:Evoked Potentials; D006801:Humans; D008607:Intellectual Disability / Q000503:physiopathology*; D009043:Motor Activity / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D014796:Visual Perception / Q000502:physiology
Otrazhenie narusheniĭ protsessa vybora reaktsii v korkovoĭ vyzvannoĭ élektricheskoĭ aktivnosti bol'nykh oligofrenieĭ.