The primary aim is to utilize near-infrared spectroscopy (NIRS) in patients under general anesthesia to measure changes in brain blood flow in the bilateral somatosensory cortices and the prefrontal cortices in response to noxious stimulation.
UNKNOWN
Inclusion Criteria:
* 12-30 years of age
* Structurally normal heart
* Right-handed
* English-speaking
Exclusion Criteria:
* Unable to cooperate or understand the study
* Neurologic disease
* Diabetes mellitus
* Syndrome of greater than minor severity.
* Smoker
* Scalp or hair does not permit sufficient optical light detection
* Unable to keep his/her head still for a period of 200 consecutive seconds
NA
ALL
12 Years
30 Years
2021-01-07
N/A
DRUG
DRUG
Remifentanil
Normal saline
For more information and to contact the study team: