An altered state of consciousness (ASC), 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 1966 by Arnold M. Ludwig and brought into common usage from 1969 by Charles Tart: it describes induced changes in one's mental state, almost always temporary. A synonymous phrase is "altered state of awareness".
Altered states of consciousness can be associated with artistic creativity. They also can be shared interpersonally and studied as a subject of sociological research.
Read more about Altered State Of Consciousness: States of Consciousness, Typology
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