How the brain causes losing and regaining consciousness

Mechanisms of Loss, Recovery and Disorders of Consciousness

['FUNDING_R01'] · UNIVERSITY OF WISCONSIN-MADISON · NIH-11323081

This work looks at brain signals from people having epilepsy surgery to find patterns that explain losing and regaining consciousness across sleep, anesthesia, and awake states.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorUNIVERSITY OF WISCONSIN-MADISON (nih funded)
Locations1 site (MADISON, UNITED STATES)
Trial IDNIH-11323081 on ClinicalTrials.gov

What this research studies

If I take part, doctors will record electrical activity directly from my brain using electrodes placed as part of neurosurgical care. They will compare brain responses during wakefulness, drowsiness, dreaming, and under anesthesia, and may use brief sounds or gentle electrical stimulation while recording. Researchers will use computer analyses to look for signal patterns and connections between brain areas that match changes in awareness. The goal is to find reliable brain markers that show when someone is conscious or not, and how recovery happens over time.

Who could benefit from this research

Good fit: Ideal candidates are adults undergoing intracranial monitoring for epilepsy surgery or patients treated at specialized centers who can safely have brain recordings during clinical care.

Not a fit: People who are not having brain surgery, who cannot undergo invasive monitoring, or whose condition does not affect arousal/awareness are unlikely to benefit directly from participating.

Why it matters

Potential benefit: If successful, this could help clinicians detect and monitor awareness more accurately and guide treatments for people with anesthesia complications, coma, or other disorders of consciousness.

How similar studies have performed: Prior work has found promising brain-signal markers during anesthesia and sleep, but applying and validating these markers for disorders of consciousness is still emerging.

Where this research is happening

MADISON, UNITED STATES

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.

View on NIH RePORTER →

Conditions: Acute Disease

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.