Corazza, O., & Schifano, F. (2010). Near-death states reported in a sample of 50 misusers Substance Use & Misuse, 45(6) 916-924.
Abstract: Increase in recreational ketamine use may be a cause for concern. We aimed here at assessing, in a sample of ketamine misusers, concordance between the typical near-death experience (NDE) features and the on-drug psychoactive effects the subjects experienced. In 2003–2005, a sample of previous ketamine misusers recollecting a ketamine-related NDE were recruited through snowballing and screened with the means of the Greyson NDE Scale; 125 participants made an initial contact with the researcher and 50 reported a minimum score of seven at the “Greyson NDE Scale”. Interviewees were in the range 21–66 years old; 27 participants (54%) were educated at BA level, 18 (36%) had an MSc, and 5 (10%) a PhD. Eight (16%) interviewees had a definite religious background. An average lifetime ketamine intake of 140 occasions was reportedby the interviewees, who typically presented with a polydrug, including cannabis and MDMA/ecstasy, misuse history. In 45 (90%) cases, the NDE occurred during the first few occasions of intake. Most frequent features of reported NDE states included: altered perception of time (90%), strong sense of detaching from own physical body (88%), and a sense of peace/joy (76% of subjects). Although results here described were elicited from a self-selected, nonrandomized, limited size sample of misusers, we suggest that recreational ketamine intake may be associated with occurrence of near-death related states.
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Topics:
Altered States and NDEs
Characteristics of NDErs—Age, Adults
Characteristics of NDErs—Education Level
Characteristics of NDErs—Gender
Characteristics of NDErs—Marital Status
Characteristics of NDErs—Psychological Profile
Characteristics of NDErs—Religious Affiliations
Characteristics of NDErs NOS
Characteristics of NDEs—Autoscopy, Out-of-Body
Characteristics of NDEs—Emotions, Pleasurable
Characteristics of NDEs—Encountering Beings, Deceased or Living
Characteristics of NDEs—Encountering Beings, Spiritual
Characteristics of NDEs—Increased Knowledge, Thoughts
Characteristics of NDEs—Life Review
Characteristics of NDEs—Light, Mystical
Characteristics of NDEs—Otherworldly Environments
Characteristics of NDEs—Parapsychological Phenomena, ESP
Characteristics of NDEs—Parapsychological Phenomena, Precognition
Characteristics of NDEs—Perception of Time
Characteristics of NDEs—Return NOS
Characteristics of NDEs—Sensory, Sound, Hearing
Characteristics of NDEs—Sensory, Vision
Characteristics of NDEs—Sensory NOS
Characteristics of NDEs—Tunnel Experiences
Circumstances of NDEs—Induced Chemically
Interpretations of NDEs
Language and NDEs
Methodology in NDE Research
Psychopharmacology and NDEs—Anesthesia