|cannabis||breathhold duration in humans via placebo trial (n=10)||Response to marijuana as a function of potency and breathhold duration.||1991|
Ingestion Method: 2.5% THC|
Negative Breathhold duration affected CO absorption; significantly more CO was absorbed from both P and M smoke after 20 s of breathholding (mean CO boost = 6.9 ppm) than after no breathholding (mean = 4.4 ppm). Heart rate was minimally affected by the breathhold manipulation. Effects of marijuana on mood were not consistently affected by breathhold duration. The results confirm previous findings that prolonged breathholding does not substantially enhance the effects of inhaled marijuana smoke.
|cannabis||breathhold duration in humans via trial||Breathhold duration and response to marijuana smoke||Sept 1988|
|Negative Typical marijuana effects (increased heart rate, increased ratings of high and impaired memory performance) were observed under each of the breathhold conditions, but there was little evidence that response to marijuana was a function of breathhold duration.|