(New York: Houghton Mifflin, 2003).
4. See M. A. Persinger, «Religious and Mystical Experiences as Artifacts of Temporal Lobe Function: A General Hypothesis,» Perc. Mot. Skills 57:1255-62 (1983). Clinicians have long observed a deepening of emotionality plus the development of a serious, highly ethical and spiritual demeanor in certain patients with chronic mesial temporal lobe epilepsy. Whether this can count as evidence for a specific kind of «personality syndrome» is still disputed. See O. Devinsky & S. Najjar, «Evidence Against the Existence of a Temporal Lobe Epilepsy Personality Syndrome,» Neurology 53:S13-S25 (1999); D. Blume, «Evidence Supporting the Temporal Lobe Epilepsy Personality Syndrome,» Neurology 53:S9-S12 (1999).
5. For more information, see the Web portal my collaborators Carsten Griesel and Elisabeth Hildt have created at www.neuroethics.uni-mainz.de.
6. B. Maher, «Poll Results: Look Who's Doping,» Nature 452:674–675 (2008). See also B. Sakhanian & S. Morein-Zamir, «Professor's Little Helper,» Nature 450:1157-5 (2007).
7. M. J. Farah et al., «Neurocognitive Enhancement: What Can We Do and What Should We Do?» Nature Reviews Neuroscience 5:421–425 (2004). Four years later, after a careful analysis of pros and cons and perhaps surprisingly to many, leading figures in neuroethics are now coming to the conclusion that «We should welcome new methods of improving our brain function. In a world in which human workspans and lifespans are increasing, cognitive enhancement tools-including the pharmacological-will be increasingly useful for improved quality of life and extended work productivity, as well as to stave off normal and pathological accerelated cognitive declines. Safe and effective cognitive enhancers will benefit both the individual and society.» See H. Greely et al., «Towards Responsible Use of Cognitive-Enhancing Drugs by the Healthy,» Nature 456:702–705 (2008).
8. For a first and careful discussion of this important question, see T. Douglas, «Moral Enhancement,» J. Appl. Phil. 25:228–245 (2008).
9. Alexander Shulgin and Ann Shulgin, PiHKAL: A Chemical Love Story (Transform Press, 1991); and Alexander Shulgin, TiHKAL: The Continuation (Transform Press, 1997).
10. W. N. Pahnke & W. A. Richards, «Implications of LSD and Experimental Mysticism,» Jour. Religion & Health 5:179 (1966).
11. R. R. Griffiths et al., «Psilocybin Can Occasion Mystical-Type Experiences Having Substantial and Sustained Personal Meaning and Spiritual Significance,» Psychopharm.