1 Louis C. K., interview by Conan O'Brien, Conan , TBS,September 19, 2013.
2. Mark Laubach, "A Comparative Perspective on Executive and Motivational Control by the Medial Prefrontal Cortex,"in Neural Basis of Motivational and Cognitive Control , ed. Rogier B. Mars et al.
3. H. A. Slagter et al.,"MRI Evidence for Both Generalized and Specialized Components of Attentional Control," Brain Research 1177 (October 26, 2007): 90–102.
4. E. B. Ansell et al., "Cumulative Adversity and Smaller Gray Matter Volume in Medial Prefrontal, Anterior Cingulate, and Insula Regions," Biological Psychiatry 72, no.1 (July 1, 2012): 57–64.
5. Mihaly Czikszentmihalyi, Flow: The Psychology of Optimal Experience (New York: HarperCollins, 1990).
6. Paul Noth, "The Internet Wants to Destroy Your Productivity,"The New Yorker (September 2, 2013): 22.