Fig. 1
From: Expectation effects on brain dopamine responses to methylphenidate in cocaine use disorder
a Healthy controls (HC) showed stronger MP-induced increases in pulse rate and systolic blood pressure than cocaine use disorder (CUD). b CUD reported lower rush and high compared to HC during the MP challenge. There was no effect on expectation on anxiety when challenged with PL in either group. When challenged with MP, HC had higher anxiety whereas CUD showed reduced anxiety in unexpected condition
