Nitpick: the default settings in Brainworkshop, one of the more popular DNB implementations, take 72 seconds per session for a minimum of 24 minutes for 20 sessions. Adding in saccading between sessions (20-30 seconds) or tweaking options could add in still more time.
Nitpick: the default settings in Brainworkshop, one of the more popular DNB implementations, take 72 seconds per session for a minimum of 24 minutes for 20 sessions. Adding in saccading between sessions (20-30 seconds) or tweaking options could add in still more time.
24 minutes is pretty close to 30 minutes.