For example , one of his experiments examined the differing effects methylphenidate , chlorpromazine , and imipramine had on freezing and immobility in rats .
These methods varied from Pavlovian conditioning paradigms to drug injections of methylphenidate and chlorpromazine in rat models .
One of his experiments examined the differing effects methylphenidate , chlorpromazine , and imipramine had on freezing and immobility in rats .
These methods varied from Pavlovian conditioning paradigms to drug injections of methylphenidate and chlorpromazine in rat models .