Lars Farde et al., «The Serotonin System and Spiritual Experiences», American Journal of Psychiatry 160 (2003): 1965–69; Umit Sayin, «Altered States of Consciousness Occurring During Expanded Sexual Response in the Human Female», NeuroQuantology 9, no. 4 (2011); N. Goodman, «The Serotonergic System and Mysticism», Journal of Psychoactive Drugs 34, no. 3 (2002): 263–72. Кроме того, см. John Ratey and Eric Hagerman, Spark: The Revolutionary New Science of Exercise and the Brain (New York: Little, Brown, 2008).
