What Researchers Did
Researchers investigated the effects of ethyl alcohol and dextroamphetamine on nitrogen narcosis using a 2-, 3-, and 4-choice serial reaction time task.
What They Found
They found that nitrogen narcosis, induced by air at 6.4 atmospheres absolute (ATA), increased the intercept of the Hick-Hyman function, similar to alcohol (1.5 ml/kg body weight) alone. This increase was additively worsened by alcohol and antagonistically improved by dextroamphetamine (15 mg), while a heliox control at 6.4 ATA had no effect on reaction time.
Canadian Relevance
This study has no direct Canadian connection according to the provided metadata.
Study Limitations
The study was conducted under specific hyperbaric conditions in a controlled laboratory setting, which may limit the generalizability of its findings to real-world scenarios or a broader population.