Twanna has suddenly developed an inability to see at night. Doctors cannot identify a medical reason for her blindness. Although her family is very concerned about her loss of night vision, she appears to have accepted her limitation and shows little concern. Psychologists would label this feature of indifference in Twanna's behavior as

The boundaries between words in spoken language

a. are just as distinctive as the boundaries between words in written language. b. are more distinctive in English than in other languages. c. are often missing, so that two words are not separated by an actual pause. d. are difficult for children to perceive, though adults rarely make perceptual errors.

Which physical feature of the human head allows us to engage in the process of sound localization?

a) our nose and chin are located between our ears on the of our faces b) our cochleae are spiral-shaped instead of straight and flat c) our ears are located directly adjacent to the temporal lobes of the cerebrum d) our ears are located on opposite sides of our heads