While crossing the street, you know a car is approaching on your left side because:
a. the left ear got the information just a fraction of a second before the right ear.
b. the right ear got the information just a fraction of a second before the left ear.
c. the right ear experienced the sound more intensely than the left ear.
d. both ears experienced the sound at the same intensity.
Answer: A
Rationale: The timing in which a sound hits one ear versus the other is an important cue for the location of that sound.
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Three-month-old Alex is lying in his crib. As he moves, he accidentally gets his foot in his mouth. He laughs and puts his foot in his mouth again. This activity is called
A) assimilation. B) sensorimotor play. C) fine motor skills. D) symbolic play.
Infants develop best in a broad range of activities when they are securely attached to
a. neither their mother nor their father. b. their father but not to their mother. c. their mother but not to their father. d. both their father and their mother.