How can the nervous system represent increases in the intensity of a stimulus?
a. Only by an increase in the size of the action potential in each neuron that fires.
b. Only by an increase in the number of neurons being fired.
c. Only by an increase in the frequency of firing in each neuron.
d. By increasing the number of neurons firing and the frequency of firing in each neuron.
d
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The morality of cooperation corresponds to Piaget's ______ cognitive stage.
A. sensorimotor B. preoperational C. concrete operational D. formal operational
Your roommate is pregnant and she gets very angry and yells quite a bit over the smallest things. What is a good piece of advice that you could give her?
a. It is OK if she gets upset, but she should not yell. It will harm the fetus's hearing. b. Getting angry and yelling is good for the fetus since it will raise the fetus's heart rate. c. She should probably get a different boyfriend. He is not going to be a very good father . d. That she should try relaxation therapy. Whenever she gets really upset, her fetus gets very upset too.
When a member of Kennedy's cabinet expressed concern over the plan to invade Cuba, the attorney general (and Kennedy's brother) pulled the dissenter aside and told him to support Kennedy's decision. In this case, the attorney general was acting as a
a. politician. b. Machiavellian. c. transactive leader. d. mindguard.
When a person with persistent depressive disorder has a major depressive episode, it is known as:
a. double depression b. mixed state c. bipolar disorder d. hypomania