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".

It can be associated with artistic creativity.^[4]

Contents 1 Causes 1.1 Accidental/pathological 1.2 Intentional/recreational/religious 2 Typology 3 See also 4 References 5 Further reading

[edit] Causes

[edit] Accidental/pathological

An altered state of consciousness can come about accidentally through, for example, fever, infections such as meningitis,^[5] sleep deprivation, fasting, oxygen deprivation, nitrogen narcosis (deep diving), psychosis^[6], temporal lobe epilepsy or a traumatic accident.

[edit] Intentional/recreational/religious

An ASC can sometimes be reached intentionally by the use of sensory deprivation, an isolation tank, sleep deprivation, lucid dreaming, or mind-control techniques, hypnosis, meditation, prayer, or disciplines (e.g. Mantra Meditation, Yoga, Sufism, dream yoga, or Surat Shabda Yoga).

It can also be attained through the ingestion of psychoactive drugs such as alcohol and opiates, or more commonly with entheogenic plants and their derivative chemicals such as LSD, DXM, 2C-I, peyote, cannabis, mescaline, Salvia divinorum, MDMA, psychedelic mushrooms, ayahuasca, or datura (Jimson weed).

Another effective way to induce an altered state of consciousness is using a variety of Neurotechnology such as psychoacoustics, binaural beats, light and sound stimulation, cranial electrotherapy stimulation, and such; these methods attempt to induce specific brainwave patterns, and a particular altered state of consciousness.^{[citation needed]}

[edit] Typology

Gamma: 30 - 100+ Hz

Beta: 12 – 30 Hz

Alpha: 8 – 12 Hz

Theta: 4 – 8 Hz

Delta: 0.01 – 4 Hz

[edit] See also

[edit] References

[edit] Further reading

• 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
• James, William The varieties of religious experience (1902) ISBN 0-14-039034-0
• 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.
• Wier, Dennis R. Trance: from magic to technology (1995) ISBN 1-888428-38-4