The dopamine signal causes changes in neural connectivity that makes it easier to repeat the activity again and again without thinking about it, leading to the formation of a Coincidence Habit Relationship Crisis None of the Above Question 5 of 20
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Jerelyn N.
Dr. Richard Beninger, a neuroscientist at Queen's University, studied the behaviors 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. Image courtesy of Richard Beninger. Based on this study, what function is dopamine likely involved in? (1 point) __________________________________________________________________________ What is the independent variable in this study? (1 point) __________________________________________________________________________ What is the dependent variable in this study? (1 point) __________________________________________________________________________ Was the drug in this study considered to be an agonist or antagonist? Explain. (2 points) __________________________________________________________________________ If cocaine were given to the rats, what would the cocaine likely do to the dopamine? Would this be an agonistic or antagonistic effect? Explain. (2 points) __________________________________________________________________________
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