The purpose of this study is to define temporal profile of brain activation (rCBF) using Xenon-SPECT and O 15-PET.
Study Type
INTERVENTIONAL
Purpose
TREATMENT
New York State Psychiatric Institute
New York, New York, United States
Absolute change in rCBF at 5 & 15 minutes (Xe)
Relative change in rCBF at 5, 19, & 33 minutes (O15)
Correlated with a) subjective effects, b) venous blood level of coca, c) autonomic variables
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