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5 Written Questions

1. system for sensing the position and movement of individual body parts
2. predicting how and when we detect the presence of a faint stimulus amid background stimulation
3. processing of several aspects of a problem simultaneously; contrasts with the step-by-step processing of most problem solving
4. process by which the eye's lens change shape to focus near or far objects on the retina
5. distance from the peak of one light or sound wave to the peak of the next

5 Matching Questions

1. absolute threshold
2. Weber's law
3. sensory interaction
4. transduction
5. sensation

1. a minimum stimulus needed to detect a particular stimulus 50 percent of the time
2. b conversion of one form of energy into another.
3. c principle that, to be perceived as different, two stimuli must differ by a constant minimum percentage
4. d principle that one sense may influence another, as when the smell of food influences its taste
5. e process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment

5 Multiple Choice Questions

1. transparent structure behind the pupil that changes shape to help focus images on the retina
   1. rods
   2. cones
   3. iris
   4. lens
2. retinal receptors that detect black, white, and gray
   1. lens
   2. cones
   3. iris
   4. rods
3. innermost part of the ear, containing the cochlea, semicircular canals, and vestibular sacs
   1. retina
   2. inner ear
   3. middle ear
   4. intensity
4. condition in which nearby objects are seen more clearly than distant objects because distant objects focus in front of the retina
   1. sensation
   2. farsightedness
   3. perception
   4. nearsightedness
5. condition in which faraway objects are seen more clearly than near objects because the image of near objects is focused behind the retina
   1. frequency
   2. farsightedness
   3. nearsightedness
   4. audition

5 True/False Question

1. hue → dimension of color that is determined by the wavelength of light; blue, green, etc.
   

   True        False

2. optic nerve → nerve that carries neural impulses from the eye to the brain
   

   True        False

3. opponent-process theory → theory that opposing retinal processes (red-green, yellow-blue, white-black) enable color vision
   

   True        False

4. intensity → innermost part of the ear, containing the cochlea, semicircular canals, and vestibular sacs
   

   True        False

5. top-down processing → information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations
   

   True        False