A sharpshooter in a war combat zone is monitoring a busy street for his enemy target. He will have only one chance to take out his target; thus, he is scanning the street with extreme vigilance. The activity of which neurotransmitter is underlying his alertness?
A) GABA
B) endorphins
C) dopamine
D) norepinephrine
D) norepinephrine
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If Debbie stares at an illustration of the American flag for a while and then glances at a blank, white page, she will be able to view the image of the flag, but the red stripes will turn green on the blank page. Which of the following statements best explains this phenomenon?
A. The cones responsive to red light stop firing. B. The receptor cells for the red component of the red-green pairing become fatigued. C. The cones responsive to green light begin firing. D. The receptor cells for the green component of the red-green pairing begin to adapt.
Vicarious conditioning is different from other types of conditioning in that it involves
a. shaping rather than punishment b. learning without punitive consequences c. learning without actually doing a behavior d. acquiring new behaviors by practice
Distress is
a. seen when a situation is ambiguous. b. a response to a happy life event. c. the same thing as eustress. d. a response to a negative event.
Colleen is playing a guessing game at a friend's baby shower. If Colleen correctly guesses the birth weight and length of her friend's newborn, she will win a great prize. Based on typical full-term newborn size in the United States, Colleen's best guess would be
A. 5 pounds and 15 inches. B. 5 pounds and 17 inches. C. 7 pounds and 17 inches. D. 7 pounds and 20 inches.