Amplitudes of visually evoked cortical responses due to full-field stimulation and to stimulation with four half-fields.
In 30 healthy subjects the VECP following full-fields, upper, lower, nasal and temporal half-field stimulation was recorded. The full-field amplitudes is significantly larger than each of the half-field responses. For peak P120, the amplitudes following lower half-field stimulation is significantly larger than the amplitude due to upper, nasal and temporal half-field stimulation. The sum two half-field amplitude is significantly larger than the full-field response.
Orban
D
D
Department of Electrodiagnosis, Medical Academy, Erfurt, FRG.
Müller
W
W
D005074:Evoked Potentials, Visual / Q000502:physiology*; D006801:Humans; D010775:Photic Stimulation / Q000379:methods; D012016:Reference Values; D014793:Visual Cortex / Q000502:physiology*; D014794:Visual Fields / Q000502:physiology*