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Related Experiment Video

Updated: May 31, 2026

SECONDs Administration Guidelines: A Fast Tool to Assess Consciousness in Brain-injured Patients
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Terminal lucidity: a review and a case collection.

Michael Nahm1, Bruce Greyson, Emily Williams Kelly

  • 1Division of Perceptual Studies, Department of Psychiatry & Neurobehavioral Sciences, University of Virginia Health System, 210 10th Street NE, Suite 100, Charlottesville, VA 22902-4754, USA.

Archives of Gerontology and Geriatrics
|July 19, 2011
PubMed
Summary

Terminal lucidity, a surprising return of mental clarity before death, occurs in patients with severe brain disorders. Investigating this phenomenon may unlock new insights into memory, cognition, and end-of-life care.

Area of Science:

  • Neurology
  • Psychiatry
  • Cognitive Neuroscience

Background:

  • Terminal lucidity (TL) is a poorly understood phenomenon where patients with severe neurologic and psychiatric disorders experience a temporary return of mental clarity before death.

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  • Reported for over 250 years, TL remains under-researched despite its potential implications for understanding end-of-life brain function.