title: A sequential technique for half-field pattern visual evoked potential testing.
abstract: A stimulus technique is described where left and right half fields of a video checkerboard pattern reverse sequentially at a 245 msec interval. The pattern VEPs are recorded on a 512 msce timebase. This allows VEPs to left and right half-field reversal to be obtained on the same sweep, cutting total stimulus time required for testing in half. Normal values for absolute and relative latency and amplitude are given.
mesh_terms: D000293:Adolescent; D000328:Adult; D004568:Electrodiagnosis / Q000379:methods*; D005071:Evoked Potentials; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010775:Photic Stimulation / Q000379:methods*; D011930:Reaction Time / Q000502:physiology; D014795:Visual Pathways / Q000503:physiopathology*