Hi a couple of questions regarding the biofeedback aspect of the Mitsar: 1. as part of the feedback session is it possible to identify what the mean amplitudes of a particular frequency are prior to the actual feedback so we can set the feedback threshold accordingly 2. how do you change/set the target threshold for feedback 3. how do you provide both visual and auditory feedback 4. following feedback is it possible to look at the mean amplitude values for each frequency 5. is it possible to set the feedback to run for a pre-set amount of time? many thanks david ps. i did try looking in the help directory but could not find it and found no answers in the manual either !! David J Vernon PhD Dept. of Cognitive Neuroscience & Behaviour Imperial College London St Dunstan's Road London W6 8RP Tel: 44 (0) 208 383 0584 Fax: 44 (0) 208 846 1670