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|2015-01-24 ASSR Figures.pptx|
** Auditory Steady State Response ** 2015-01-24 and 2015-01-25 EEG Hacker * 2015-01-24 * Chan 1: Cz EEG Ref: Left Ear Lobe EEG Bias: Right Ear Lobe Stimulation: Same signal to both ears. All sounds are for 20 sec. First, 1000Hz at 38, 40, 42Hz beating. Then, 2500Hz at 38, 40, 42 Hz beating. * 2015-01-25 * Chan 1: Fpz (Forehead, Midline) Chan 2: Fz (Front-ish, Midline) Chan 3: T7 (Above Left Ear) Chan 4: T8 (Above Right Ear) Chan 5: C3 (Left, Half-Way Up to Cz) Chan 6: C4 (Right, half-Way Up to Cz) Chan 7: Cz (top of head, Midline) Chan 8: Oz (back of head, Midline) EEG Ref: Right Ear Lobe EEG Bias: Left Ear Lobe Stimulation: Three tests: A and B and C Test A: Same signal to both ears, except at end as noted below * Start eyes closed * 20 sec: 1000 Hz at 37, 40, 43Hz beating * 10 sec: silence (eyes closed) * 20 sec: 2500 Hz at 37, 40, 43 Hz beating * 10 sec: silence (eyes closed) * 20 sec: Finish with 1000/37 in left and 22500/43 in right. * End eyes closed Test B: Stereo: * 20 sec: 1000/37 in left and 22500/43 in right. (Attention to Left) * 10 sec: silence * 20 sec: 1000/37 in left and 22500/43 in right. (Attention to Right)