Lucille suffers from depression, and goes to a physician's office. There a wire coil is placed on the left side of her forehead and a field that disrupts brain activity is created. Lucille is being treated with:
a) transcranial magnetic stimulation (TMS).
b) electro-convulsive therapy (ECT).
c) functional magnetic resonance imaging (fMRI).
d) single-photo emission computed tomography (SPECT).
ANS: A, This type of physical intervention is less invasive and causes fewer memory-related side effects than electro-convulsive therapy.
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Suppose you are interested in how participants behave in different color conditions. You select 30 participants and assign them to one of three rooms. The rooms differ only with respect to the color of the walls. One room is white, one is pale blue, and a third is bright red. Each participant is served a meal of a hamburger and french fries, and you then measure how long it takes them to finish
eating. What would be the independent variable in this study? What will be an ideal response?
Teresa hid dad's slippers. With a smile, he waves his hands and uses baby talk to wonder where his slippers "walked off to hide.". Dad shows
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Javier and Alyssa are brother and sister, and both have O type blood. They know that their mother has type A blood, but do not know their father's blood type. Given this information, what could their father's blood type be?
A. could be A, B, or O B. must be O C. must be A D. could be AB or O