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Cortico-cortical Connectivity During Midazolam Sedation in Humans; a TMS/EEG Study

Cortico-cortical Connectivity During Midazolam Sedation in Humans; a TMS/EEG Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00734006
Enrollment
20
Registered
2008-08-13
Start date
2008-07-31
Completion date
2010-03-31
Last updated
2015-05-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Keywords

Cortico-cortical, connectivity, Transcranial, Magnetic, Stimulation

Brief summary

The aim of the proposed research is to measure the effect of drug-induced sedation on the functional connectivity between brain regions as indicated by EEG signal transmission within the human brain. The results of this study will help to identify the neurophysiological correlates of changes in conscious experience that occur during drug-induced sedation.

Detailed description

In the proposed experiments cortical areas will be stimulated using low frequency, low-amplitude transcranial magnetic stimulation (TMS) in healthy human subjects during wakefulness and during drug-induced responsive sedation and unresponsive sedation. Simultaneously, high-density electroencephalography (Hd-EEG) will be recorded to evaluate the temporal and spatial characteristics of evoked responses and induced rhythms over the cortex.

Interventions

None listed

Sponsors

University of Wisconsin, Madison
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
MALE
Age
18 Years to 35 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy right-handed men * Aged 18-35 * Non-smokers * No metallic implants

Exclusion criteria

* Younger than 18 or over the age of 35.

Design outcomes

Primary

MeasureTime frame
Defining the neurophysiological conditions that are necessary for conscious experience.Immediate

Secondary

MeasureTime frame
Understanding the neurophysiological correlates of conditions associated with restricted conscious experience such as sedation and anesthesia.Immediate

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026