Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Diffuse noxious inhibitory controls in vehicle- and morphine-treated animals. No significant difference was seen between vehicle- and morphine-treated animals in fast (A) and slow (B) heat-evoked activity during the control stimulation trials (open bars). Heat applied to the cutaneous receptive field while the tail was place in 55°C water (filled bars) reduced neuronal activity only in vehicle-treated animals. **p < 0.01, two-way ANOVA with repeated measures.
