My biggest thanks go to my wife, Lisa Rock, who, for too long, put up with a husband who traveled a lot and only ever wanted to talk about the brain when he was around. A big thanks to my daughters, India and Trinity, who unfortunately had to practice lots of emotional regulation to let Dad lock himself away and write.
Thanks go to Jeffrey Schwartz, who was originally going to partner with me on this book but decided to go in a new direction midway. Your guidance and mentoring was much appreciated. The terms self-directed neuroplasticity and attention density came from Jeff. Also thanks to Matt Lieberman, Kevin Ochsner, Evian Gordon, and Yi-Yuan Tang for your informal mentoring and scientific guidance over several years.
