[Visual potentials in humans with multiple sclerosis evoked by checkboard pattern of different contrast with additional noise].
A hypothesis is advanced of an effect of internal noise upon signal conduction along visual nerve in an early stage of multiple sclerosis. Visual evoked potentials in response to chess patterns against a homogeneous background and against a noise background were studied in healthy subjects and in patients with multiple sclerosis. Contrast between internal noise in the patients was found to be twice as great as in healthy subjects.
Murav'eva
C V
CV
Shelepin
Iu E
IuE
Deshkovich
A A
AA
D000293:Adolescent; D000328:Adult; D015350:Contrast Sensitivity; D005074:Evoked Potentials, Visual / Q000502:physiology*; D006801:Humans; D009103:Multiple Sclerosis / Q000503:physiopathology*; D009460:Neurologic Examination; D009802:Oculomotor Nerve / Q000503:physiopathology