The pain-reducing and calming properties of nitrous oxide mixed with oxygen were evaluated with the use of placebo and standard control groups. Subjects under nitrous oxide had higher pain thresholds and a higher tolerance for shock than placebo and control subjects. They also reported themselves as more relaxed than did placebo and control subjects.
Get full access to this article
View all access options for this article.
References
1.
Langa, H.: Relative Analgesia in Dental Practice: Inhalation Analgesia with Nitrous Oxide , Philadelphia: W. B. Saunders & Co., 1968.
2.
Shapiro, A.K. : A Contribution to the History of the Placebo Effect, Behav Sci5: 109-135, 1960.
3.
Rosenthal, R.: Experimenter Effects in Behavioral Research, New York: Appleton-Century-Crofts, 1966.
