The effect of carbon dioxide on near-death experiences in out-of-hospital cardiac arrest survivors
Zalika Klemenc-Ketis, Janko Kersnik, Stefek Grmec · 2010 · Critical Care, 14, R56
This source is used as challenges evidence across 3 linked claims and 5 related evidence hubs. Its citation record is marked verified; that verifies the source trail, not the truth of any linked claim.
Summary
Prospective observational study of out-of-hospital cardiac-arrest survivors reporting an association between higher carbon dioxide levels and NDE reports.
How this source is used on the map
Important physiological counter-evidence because it connects NDE reports to measurable blood-gas variables rather than relying on a purely speculative brain model.
Citation record
- Authors
- Zalika Klemenc-Ketis, Janko Kersnik, Stefek Grmec
- Year
- 2010
- Publication
- Critical Care, 14, R56
- Source type
- Study
- Map role
- challenges
- Credibility level
- primary
- Citation status
- Verified
- DOI
- 10.1186/cc8952
- PubMed
- Recorded
- Not recorded
Linked claims
Hypoxia, hypercarbia, REM intrusion, endogenous DMT, and ketamine models reproduce many NDE features. Veridical cases resist the model.
A handful of veridical NDE cases are striking. The leap from 'unexplained by current models' to 'proof of afterlife' is large.
A consistent core experience — peace, light, life review, OBE — reported across cultures and prospective hospital studies.
Related evidence hubs
Evidence around dying, near-death experience, and what (if anything) continues.
Cryptomnesia, anoxia models, cold reading. Counter-anchors.
Structured experiences during cardiac arrest and crisis.
Whether anything of mind continues.
The nature of subjective experience.
Related research reports
A comparative guide to the strongest survival-adjacent evidence: NDEs, terminal lucidity, deathbed visions, past-life memories, mediumship, and after-death communication.
What NDE studies support, what they do not prove, and why the phenomenon remains one of the strongest spiritual-adjacent evidence clusters.
A balanced synthesis of the strongest and weakest evidence across afterlife, consciousness, reincarnation, mystical, psi, and practice claims.
Related sources
Major reference for the sceptical / cognitive-explanation side of psi-style claims.
One of the strongest brain-based counterweights in the NDE debate because it shows near-death neural activity can become organized rather than simply switching off.
A concise, mainstream skeptical anchor for NDE interpretation pages; especially useful paired with replies from NDE researchers.
The institutional home for serious empirical work on past-life memories and survival-related anomalies.
Direct background for any claim about whether something of the person survives death, and a useful guardrail against treating survival as a single simple proposition.
Standard reference body for NDE-related claims; archives many first-person accounts and links to peer-reviewed work.