Investigating Near-Threshold Perception During Anesthetic Sedation

Status Recruiting

Clinical Trial Summary

The researchers expect to gain a deeper understanding of mental function during different levels of anesthesia, and to evaluate if the use of ultrasonic brain stimulation accelerates return to consciousness. Propofol is FDA approved for use in patients undergoing an anesthetic for medical treatment but is not approved for use in healthy volunteers.

Clinical Trial Description

The stimulus set will include real and scrambled images, where the scrambled images will be created by phase-shuffling a randomly chosen real image from each category to preserve category specific low-level image features. Because scrambled images do not include an object stimulus, the images are used as "catch trials" to determine the subjects' baseline tendency to give positive responses to a question about the subjects' recognition experience. Each object category will include four unique real images and one scrambled image. Each image will be repeated 10 times (i.e., trials) for each 16-min session. The pre-stimulus interval will vary randomly from trial to trial between 4 and 8 seconds to prevent stimulus timing predictability. The stimuli will be presented in a randomized order to prevent category predictability. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT06403852
Study type	Interventional
Source	University of Michigan
Contact	Amy McKinney
Phone	734-647-8129
Email	adrongo@med.umich.edu
Status	Recruiting
Phase	Phase 2
Start date	May 6, 2024
Completion date	December 2025

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