Kathrin Weidacker, Yijie Zhao, Yingying Zhang, Seb Whiteford, Qihuan Ren, Chencheng Zhang, Valerie Voon
INTRODUCTION: Previous research showed that methadone maintenance treatment (MMT) is linked to impulsivity, with higher impulsivity levels being associated with for example, increased drug use. One aspect of impulsivity, most commonly studied in rodent research, is premature responding, the failure to wait for a starting signal. Premature responding is of high translational significance since it predicts the development of addiction-like behaviors in rodents. METHODS: We assessed 45 MMT patients and 46 demographically matched (age, sex, education, and handedness) healthy volunteers (HVs) on premature responding alongside action and inhibition of instructed and intentional trials using the Intentional Hand Task (IHT)...
November 2, 2023: Journal of Clinical and Experimental Neuropsychology