Research Article
Measuring Latency Variations in Evoked Potential Components Using a Simple Autocorrelation Technique
Figure 6
(a) An averaged somatosensory evoked potential (SEP) (average of 30 repetitions) recorded from the scalp (C3-Fz) after stimulation of the right median nerve at the wrist. Recorded from a neurologically normal female. Median values (horizontal lines, right axis) are shown for three time windows which include identified signal components: A (17-23 ms), B (30-40 ms), and C (45-80 ms). (b), (c), and (d) are the autocorrelation histograms for the time windows for A, B, and C, respectively.
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