test subject: jh

audio alpha feedback, 
filter center freq=9.4Hz, bw=2Hz 
feedback threshold=30uVp-p

CH0: Cz-Au2
DRL: on lower right leg

recorded data can be viewed with bwview (http://uazu.net/bwview/)
bwview raw/256:s sessionname.pcm

sitting, eyes closed
ON-OFF-ON training

marker: 3-times clenching jaw (giving an about 200uVp-p EMG signal)

timeindex
(seconds)
000: 14Hz squarewave calibration signal 250uVp-p
064: marker, start alpha feedback
077: alpha amplitude increases
260: marker, start OFF phase
327: marker, end OFF phase, start ON phase
344: alpha amplitude increases
500: marker, end ON phase, start OFF phase
574: marker, end OFF phase, start ON phase
739: marker, end ON phase, next phase is the attempt to observe ideoretinal lights without disturbing alpha 
937: end