Both PET scans and MRIs are neuroimaging techniques that allow us to understand brain structures. While the PET scan relies on __________, the MRI uses _______ to produce images of the brain.
A. X-rays, radioactive positrons
B. radiofrequency waves; radioactive dye and x-rays
C. radioactive positrons; magnetic fields
D. radioactive dye; x-rays
Ans: C. radioactive positrons; magnetic fields
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Gestures are prime examples of
a) doublespeak. b) metalanguage. c) paralanguage. d) body language.
A drawback in using primary punishers and primary reinforcers in research is that:
a. they are not as effective as secondary reinforcers in conditioning procedures. b. using primary punishers or taking away a primary reinforcer is sometimes not ethical. c. the experimenter must first make sure that the stimulus has acquired reinforcing properties. d. they are more likely than other punishers and reinforcers to lead to superstitious behaviors.
In the "tend-and-befriend" response to stress discussed in your text, tending refers to
a. building a strong social network. b. arguing with the source of stress. c. nurturing activities. d. turning the other cheek when someone insults you.
Driving recklessly at high speeds is an example of ________ invulnerability.
A. psychological B. natural C. induced D. danger