The ____ strongly facilitates performance of various coordinated activities with the hands

Suppose you perform an experiment in which you allow a group of babies to suck on one of two different pacifiers. Some babies sucked on the one that was smooth and round and other babies sucked on the pacifier that had ridges on it and was oblong

Later, you show both pacifiers to the babies. Generalizing from similar research reported in the text, you would expect that the babies would look: a. longer at the pacifier that they had sucked on b. longer at the pacifier that was "new" c. equally long at both pacifiers d. at neither pacifier, since sucking on a "weird" pacifier was unpleasant for them

Barbituate withdrawal

A) causes psychological distress but no withdrawal symptoms. B) is similar to withdrawal from cocaine and opium. C) lasts for a short time but is very painful. D) are more dangerous and long-lasting than most drugs.