The idea behind brain entrainment is that you can force your brain into certain EEG states by subjecting it to external oscillations at the desired frequencies. There are two main methods used to get the very low frequencies involved: Either mixing two signals to get the difference (e.g., 100Hz and 102Hz gives 2Hz) or pulsing a higher frequency at the desired frequency.
There is some literature about the effectiveness of this, but for this project I seek to design a crowd experiment and gather data. You can help. Right now we are in the design phase, so I'd like to get your ideas on how we can practically make the experiment the most useful without pushing it out into the weeds (not everyone has an EEG or will commit to 8 hours of experimenting a day for six months).
In Phase II we will execute the experiment and post our data here.
As someone familiar with EEG, I think there are many challenges are involved
1) Reliable and Cheap Hardware
2) Correct Placement of Electrode
3) Making sure data is valid
4) Based on my research in the field you would need a lot more data about the subjects. For instance I have found brain signals dependent to certain ethical groups. I have not published my data but a friend of mine who has done similar work has published his paper on a similar topic where ethnicity could play a role
http://advancedotology.org/sayilar/84/buyuk/1-A%20Novel.pdf
5) Valid Tests and Stimuli
6) Ethics Approval
These are all before you actually try to mimic the same signal to make people happy!
Having said that, it is best to talk about it to find solutions and I think it is a good start.