The subthalamic nucleus (STN) has been involved in adjusting the decision bound to prevent impulsivity during difficult decisions. This study incorporated model-based and model-free approaches to assess that the STN raises the decision bound, a process impaired by deep brain stimulation (DBS). They recruited eight male and female human subjects that were being treated for Parkinson's disease with bilateral DBS of the STN to perform an auditory two-alternative forced choice task.

This dataset contains data about reaction time in which subjects reached their decision. The data includes pre-determined trial duration, time subject responded relative to trial start time, click difference at the time of response, correct answer, subject's answer, correct choice, and DBS OFF or ON for each trial. There was also data about start time in seconds of each trial relative to beginning of the session, individual click times on each trial, trial generating parameter, and which patient each trial came from.