There are lots of useful applications which should prove at least harmless, if not even beneficial.
For example with an EEG sensor you can do neurofeedback training to improve attention, which has been shown to help with ADHD and even epilepsy, among other things. For this purpose, the Neurosky Mindwave Mobile with its low price tag and bluetooth interface is certainly a better choice than any homegrown amplifier.
For EMG, besides controlling something, feedback training is also possible. For example when EMG sensors are attached to your shoulder muscles you can teach yourself to actually relax them. The computer can then alert you to unconscious tension building up, during typing for example.
I don't know if ECG (I think that's the correct English spelling) has been shown to be useful in biofeedback, but the trainability of heartrate is well known.
Regarding EEG, that's what we're working on at Three Pound. We're providing tools for mindfulness based stress reduction paired with consumer EEG devices like the NeuroSky Mindwave Mobile http://threepound.com
For example with an EEG sensor you can do neurofeedback training to improve attention, which has been shown to help with ADHD and even epilepsy, among other things. For this purpose, the Neurosky Mindwave Mobile with its low price tag and bluetooth interface is certainly a better choice than any homegrown amplifier.
For EMG, besides controlling something, feedback training is also possible. For example when EMG sensors are attached to your shoulder muscles you can teach yourself to actually relax them. The computer can then alert you to unconscious tension building up, during typing for example.
I don't know if ECG (I think that's the correct English spelling) has been shown to be useful in biofeedback, but the trainability of heartrate is well known.