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Rethink Answers
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1

Experiments could be designed to measure variables that define perceptual, motor, and behavioral characteristics of humans and the effects that certain neurotransmitters have on these characteristics. One group could be given medication that to increase the amount of certain neurotransmitters in one's brain and the effects could be recorded. Done on several different subjects, patterns could develop that helped us understand the purpose and the activity of different neurotransmitters. Another way to look at the same issue would be to observe people who have a deficit of a certain neurotransmitter and record their behaviors. In Parkinson's disease, a great deal of data has now been collected on the effects of the lack of the neurotransmitter dopamine.
2

In what ways might endorphins help produce the placebo effect? Is there a difference between believing that one's pain is reduced and actually experiencing reduced pain? Why or why not?





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