The key to fine motor control is
a. depth perception. c. skeletal development.
b. eye-hand coordination. d. lateralization.
Question 2By 9 to 12 months, infants can pick up objects with their thumb and a single finger, called
a. a grasping reflex. c. directed reaching.
b. prereaching. d. a pincer grasp.
Question 3From an evolutionary perspective, precise hand control was probably the main advantage derived from
a. upright walking. c. the transition from hunters to gatherers.
b. increased brain size. d. constant movement from place to place.
Question 4Once infants start walking, they begin to look at adults
a. when they are talking with one another. c. when they want something.
b. to try to engage them in social interaction. d. for approval.
Question 5The time when infants begin to walk corresponds to all of the following except
a. an interest in trying to figure out how things work.
b. greater freedom.
c. a proportional increase in language development.
d. potential danger.
Question 6Studies with 9-month-old infants who could crawl suggest that independent locomotion is associated with ____ early in life.
a. greater socialization c. less interest in people than in objects
b. less maternal attachment d. better and more flexible memory
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