This article is missing citations or needs footnotes.
Using inline citations helps guard against copyright violations and factual inaccuracies. (March 2008)
An altered state of consciousness, (ASC)[1], also named altered state of mind is any condition which is significantly different from a normal waking beta wave state. The expression was used as early as 1969 by Charles Tart[2][3] and describes induced changes in one's mental state, almost always temporary. A synonymous phrase is "altered states of awareness".
Another effective way to induce an altered state of consciousness is using a variety of Neurotechnology such as psychoacoustics, light and sound stimulation, cranial electrotherapy stimulation, and such; these methods attempt to induce specific brainwave patterns, and a particular altered state of consciousness.
Hoffman, Kay (1998). The Trance Workbook: understanding & using the power of altered states. Translated by Elfie Homann, Clive Williams, and Dr Christliebe El Mogharbel. Translation edited by Laurel Ornitz. ISBN 0-8069-1765-2
Roberts, T. B. (editor) (2001). Psychoactive Sacramentals: Essays on Entheogens and Religion. San Francosco: Council on Spiritual Practices.
Roberts, T. B., and Hruby, P. J. (1995-2002). Religion and Psychoactive Sacraments An Entheogen Chrestomathy. Online archive. [1]
Roberts, T. B. "Chemical Input—Religious Output: Entheogens." Chapter 10 in Where God and Science Meet: Vol. 3: The Psychology of Religious Experience Robert McNamara (editor)(2006). Westport, CT: Praeger/Greenwood.