After reading the thread here about gamma range binaural beats I got curious about brainwave entrainment, and went looking for options.
Turns out there is a more effective alternative to binaural beats called Isochronic Tones, for which you don't even need headphones. (Mr. Pink deserves credit for pointing this out). A whole bunch can be downloaded for free at http://iso-tones.com/index.php/tones (The IQ Increase and Mental Performance 2 + 3 tracks are great nootropic choices)
The effects have been astounding for me. I've tried a lot of substance nootropics, both the kinds that give barely-noticable bonuses to memory and the kind that work more by improving your motivation or concentration, but nothing has ever helped me study (or get into any other task) quite like this.
What I do is spend 10-20 minutes listening to a track while counting my breath cycles, a concentration exercise that seems to double in helping me absorb the audio stimulus. After that, I am in a nigh-perfect state of mind for processing information and doing mental problem solving. Distracting and counterproductive thought-streams and whims of anti-motivation are reduced by something like 90%. Studying this way is actually enjoyable; I get into a flow and just keep at it.
Besides the benefits to studying, I've also found these beats effective for deepening meditation, getting to sleep and dealing with a poor night's sleep. Brilliant stuff! I've guessed for a while that synchronizing my brain to tasks would be the solution for my poor attention and difficulty switching state of mind from one category of tasks to another, but I didn't think it'd be this easy to achieve this much of it. The problems encountered by the poster of the BB gamma-entrainment thread are easily avoided by using a relaxing comedown track when the active part of your day is over.
Anyway, try it. That link contains the equivalent of a score of promising new substances to try, with instantaneous delivery of lifetime supplies at no cost.
Edited by Raza, 16 April 2013 - 06:27 PM.