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.
Effects of MDMA (0.75 and 1.5 mg/kg) and methamphetamine (20 mg) on semantic proximity to selected concepts during free speech. Data are means and SD of semantic proximity values during the transcribed free speech task. PBO, placebo; MDMA0.75, MDMA 0.75 mg/kg; MDMA1.5, MDMA 1.5 mg/kg; METH, methamphetamine 20 mg; *significant differences from placebo (p<0.05); #marginal differences from placebo (p<0.07).
