Explain how levodopa treats the symptoms of Parkinson’s disease.
What will be an ideal response?
Ans: The symptoms of Parkinson’s derive from a degeneration of dopamine neurons. By serving as a step in the synthesis process for dopamine, levodopa can cause an increase in dopamine synthesis, increasing the amount of dopamine ready for release by surviving dopamine neurons. The extra dopamine released from dopamine neurons may for a time compensate for the loss of dopamine.
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An Ombuds makes the final decision in a dispute.
Answer the following statement true (T) or false (F)
The type of learning in which the consequences of behavior are manipulated to increase or decrease the frequency of the behavior, or to shape an entirely new behavior, is _____
a) operant conditioning. b) classical conditioning. c) insight learning. d) social-cognitive learning.
Dr. Hagiwara synthesized a new drug in her laboratory and discovered that it enhanced dopamine activity in the mesolimbic system of rats. What conclusions should Dr. Hagiwara draw from this finding?
A. There is no risk that the drug would be addictive to humans, because rats and humans respond to substances very differently. B. Dr. Hagiwara should immediately try out the drug on some human volunteers to assess whether or not the drug is addictive. C. Based on the information she has, Dr. Hagiwara cannot draw any conclusions about the addictive potential of her new drug. D. There is a significant risk that the drug would be addictive to humans.
In North America and Europe, more children with mild intellectual disability are from
A) environments with high rates of physical abuse. B) middle class families. C) mothers who abused drugs or alcohol during pregnancy. D) the lower socioeconomic strata.