Detecting Silent Vocalizations in a Locked-In Subject
Cross-correlations: data is from session 3 (day 1556, May 5, 2009) when loudness feedback was provided and synchronized single unit firing was optimal. Reference unit is Ch2_se_15 (bottom right panel). (a) Data segment is 5 seconds after lower beta band peak. (b) Data segment is 5 seconds before lower beta band peak. Both data segments are from a Sing period (@ 4338 seconds). Note the improved cross-correlation after the lower beta band peak in panel (a).