A potential source of the decline in cognitive ability as we age is the reduced activity of ___
a. genes involved in long-term potentiation
b. genes involved in synaptic functioning and plasticity
c. genes involved in synaptic vesicle functions
d. All of the above
D
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A brief visual stimulus elicits only a brief experience, but a brief taste stimulus provides a sensation that lasts longer. Why?
a. Taste stimulates areas that are closer to the center of the brain b. Taste stimulates release of hormones that circulate slowly through the system. c. Taste stimulates axons with very slow conduction times. d. Taste stimulates synapses with slower, longer effects.
Assume that variables X and Y are significantly correlated; the concept of reverse causality tells us that
a. X causes Y but not the reverse. b. Y causes X but not the reverse. c. X might cause Y or Y might cause X. d. X causes Y and Y causes X.
For days after visiting Disneyland, the words and tune for "It's a Small World" keep invading Jessica's thoughts. She cannot get them out of her head. Jessica's experience is similar to the ____
a. obsessions seen in obsessive-compulsive disorder b. fear seen in generalized anxiety disorder c. compulsions seen in obsessive-compulsive disorder d. avoidance seen in social phobias
Regarding motivation and emotions, which of the following statements is FALSE?
a. The words motivation and emotion both derive from the Latin word movere, which means to move. b. If you are unaware of your emotions, you will be vulnerable to health problems, such as depression or addiction. c. "Simple" motivated activities, such as eating, are solely under the control of the body. d. External cues, expectations, learning, cultural values, and other factors influence our motives and emotions.