Fig. 4.
Electroacupuncture inhibited the affective component of pain. Conditioned place avoidance scores, used to indicate affective response, were determined by subtracting time spent in the pain-paired compartment during preconditioning from time spent in that compartment during the postconditioning test: the less postconditioning time spent in the compartment, the greater the affective response. *P < 0.05 compared with sham control in complete Fruend’s adjuvant (CFA)–injected rats. CPA = conditioned place avoidance; EA = electroacupuncture. Reprinted with permission from Elsevier, Eur J Pain 16(2), 2012.