Which region of the brain is necessary for consciousness?
a) Brain stem
b) Cerebrum
c) Diencephalon
d) Cerebellum
b) Cerebrum
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The number of couples cohabiting today in the U. S. is more than 15 times larger than it was in 1970
Indicate whether the statement is true or false
The most important risk factor for cervical cancer is infection by the human papillomavirus.
Answer the following statement true (T) or false (F)
A click and a scent are each separately paired with a shock and conditioned to a maximum associative value. The click and scent are then combined into a compound stimulus and subjected to further pairings with the same shock. A likely result is that the associative value of one CS will _____ and the associative value of the other CS will _____
A) ?decrease; increase B) ?decrease; also decrease C) ?remain unchanged; remain unchanged D) ?increase; also increase
After two years, Sam needs to smoke more cigarettes to achieve the same feelings as he had when he first started smoking. This need to increase dosage is due to:
a. tolerance. b. sensitization. c. withdrawal. d. dependence.