What is a limitation of using L-dopa for Parkinson's disease?
A. It only helps those who are in the later stages.
B. It does not cross the blood-brain barrier.
C. It can contribute to a greater loss of dopamine neurons.
D. It blocks glutamate receptors.
Answer: C
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We could say that classical conditioning occurs because two stimuli are paired close together in time. This theory is called the:
A. stimulus-substitution theory B. cognitive perspective C. prediction theory D. contiguity theory
Which of the following is NOT a physical change associated with middle adulthood?
a. loss of body fat b. hearing loss c. slowing of reaction time d. loss of visual acuity
Mark just received notice that he was accepted to law school. Excited, he walks outside his house to tell his roommate, who is working in the front yard
As he exits his house, he runs into the postal worker who always delivers the mail to his house. He has never liked the postal worker much, but now he is happy to see him and eagerly strikes up a conversation. Mark's evaluation of the poster worker is due to the __________ effect of receiving the news about law school. a) associated b) direct c) attachment d) affiliation
Statistics that describe the dispersion of scores around a typical score are known as
measures of _____ . a. variability b. uncertainty c. central tendency d. difference