Why is stereotaxic surgery only used as a "last resort"?
a) because medical therapies have made stereotaxic surgery virtually unnecessary
b) because it has been proven ineffective for treating psychological disorders
c) because it is so expensive that few, if any, people can afford it
d) because of ethical issues involved in doing surgery that can cause permanent changes in a patient's abilities or personality
ANS: d
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Cross-cultural studies employing the mirror self-recognition test reveal that self-recognition __________.
A. is simply a product of brain maturation B. only occurs when infants grow up with mirrors in their environment C. may occur earlier in cultures that prize individuality D. may occur later in cultures that punish children for being selfish
Which of the following hallucinogens is derived from the resin of the Cannabis sativa plant?
A) Phencyclidine B) Nembutal C) Mescaline D) Hashish
Professor Guavita gives surprise quizzes on a random schedule. Professor Hoggatt gives the same number of quizzes, but gives them once a week on Mondays. Assuming the quizzes are of equal difficulty, whose students would be under more stress?
a. ?Professor Guavita's students b. ?Professor Hoggatt's students c. ?The stress would be equal for both groups. d. ?There is no way of predicting stress levels in this situation.
The layer of light-sensitive pixels in the digital image sensor of a camera is analogous to the layer of photoreceptors in which area of the eye?
a. retina b. iris c. lens d. pupil