A Neuroscience Study on Dopamine Dr. Richard Beninger, a neuroscientist at Queen's University, studied behaviours of lab rats on a chin up bar. He found that when normal rats were placed on the bar, they would get down immediately. However, when some rats were given a drug that blocked their dopamine receptors, these rats stayed on the chin up bar longer and longer after every dose.

1. Based on this study, what function is dopamine likely involved in? 
2. Was the drug in this study considered to be an agonist or antagonist? Explain. 
3. If cocaine were given to the rats, what would the cocaine likely do to the dopamine?
4. Would this be an agonistic or antagonistic effect? Explain.

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Function of Dopamine Based on the study dopamine is likely involved in the regulation of motivation ... View the full answer