recent book

Here's a quote from a recent book I have been reading called Your Drug May be Your Problem by Peter Breggin MD and David Cohen PhD:
"Stimulants also affect animals and people in the same characteristic ways. They produce "good caged rats" much as they produce "good school children." The drugged animals, like compliant school children, lost their motivation to explore, to innovate, to socialize, and to escape. Instead, they sit around in their cages performing meaningless tasks, such as repetitive grooming or chewing on the bars."