Jessica watches her nine-month-old son Aaron pick up cereal with his fingers. She notices that, although he once held the cereal between his fingers and palm, he now picks up the cereal using his finger and thumb. What is Aaron demonstrating?
A. A switch from a palmer grasp to an ulnar grasp
B. A switch from a pincer grasp to an palmer grasp
C. A switch from a pincer grasp to an ulnar grasp
D. A switch from a ulnar grasp to a pincer grasp
Answer: D
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Messages travel between neurons:
a. chemically b. cognitively c. electrically d. behaviorally
At the political convention, the people are crowded together on the convention floor. Although the large group is a mixture of different gender, ages, and races with many different outfits, you easily group these people together based on the sign being held up in the middle of each group that bears their state's name. Your grouping was the result of which perceptual principle?
a. contiguity b. common region c. figure-ground d. continuation
The use of a confederate to create a manipulation is an example of a staged manipulation.
Answer the following statement true (T) or false (F)
One concern about surrogate motherhood is that it
A) poses a greater risk than natural conception to infant survival and healthy development. B) may promote exploitation of financially needy women. C) is a dangerous step toward selective breeding. D) is too heavily regulated.