The monkey was shown being "shaped", that is, being encouraged to perform certain tasks by having food and water withheld, in advance of having the symptoms of Parkinson's disease induced. Electrodes were implanted in his brain to test the effects of deep brain stimulation on the Parkinsonian symptoms and on his ability to perform the tasks. He will be destroyed at the end of the experiment, which could continue for several years.
A monkey was used in an experiment where it was subjected to a "conditioning" process involving food and water deprivation before inducing Parkinson's disease symptoms.  Brain stimulation was then conducted using electrodes implanted in its brain, and the effects on both symptoms and task performance were studied. The experiment will be terminated after several years with the animal being euthanized.