Question

in the space at the left, write the letter of the choice that best completes the statement or answers the question.
____6. distinguishing between two shades of red is an example of
a. absolute threshold c. sensory adaptation
b. difference threshold d. afterimage
____7. light enters the eye through which of the following?
a. pupil c. cornea
b. lens d. retina
____8. the snellen chart is used to measure which of the following?
a. light adaptation c. color vision
b. visual acuity d. blind spots
____9. what part of the eye enables people to perceive color?
a. pupil c. lens
b. cornea d. cones
____10. convergence is an example of
a. shape constancy. c. a binocular cue.
b. brightness constancy. d. a monocular cue.
____11. a persons vestibular sense helps control
a. depth perception. c. the process of eyes adjusting to a darkened room.
b. the perception of pain. d. balance
____12. even with eyes closed, a person knows about the position and motion of his or her body parts because of
a. visual acuity. c. monocular cues.
b. kinesthesis. d. binocular clues.
____13. which of the following is not part of the skin senses?
a. pressure c. smell
b. temperature d. pain
____14. the illusion of movement produced by the rapid progression of images that are not moving is called
a. figure-ground perception. c. continuity
b. closure. d. stroboscopic motion.
____15. visual illusions are caused by which of the following?
a. poor vision c. the brains use of perceptual constancy
b. brightness constancy d. monocular cues for depth
matching
____16. monocular cue showing depth that states that nearby objects tend to appear more detailed while further objects less detailed a. kinesthesis
____17. the sense that is detects poison in the body and makes us vomit b. absolute threshold
____18. gives us information about 3-d shapes c. clearness
____19. the smallest amount of a particular stimulus that can be detected d. optical nerve
____20. the fluid-filled structure of the inner ear that transmits sound impulses to the auditory nerve. e. shadows and highlights
f. vestibular sense
g. cochlea

Explanation:

• Question 6: Difference threshold is the minimum difference between two stimuli required for detection. Distinguishing two shades of red is about detecting a difference, so it's difference threshold.
• Question 7: Light first enters the eye through the cornea, which bends (refracts) the light.
• Question 8: The Snellen Chart is a well - known tool for measuring visual acuity (sharpness of vision).
• Question 9: Cones are the photoreceptor cells in the retina that are responsible for color vision.
• Question 10: Convergence (the inward turning of the eyes as an object gets closer) is a binocular cue (uses both eyes) for depth perception.
• Question 11: The vestibular sense, located in the inner ear, is crucial for balance.
• Question 12: Kinesthesis is the sense that gives information about the position and movement of body parts, even with eyes closed.
• Question 13: Skin senses include pressure, temperature, and pain. Smell is a separate chemical sense (olfaction).
• Question 14: Stroboscopic motion is the illusion of movement from rapidly changing still images (like in movies).
• Question 15: Visual illusions often occur because the brain uses perceptual constancy (e.g., size constancy, shape constancy) inappropriately.
• Question 16: The description of nearby objects being more detailed (clearness) is a monocular cue.
• Question 17: There is no exact match in the given options for detecting poison and vomiting (it could be related to the gustatory - olfactory system and reflexes, but among the options, no perfect fit. However, if we assume a general sense related to internal body detection, no correct option. But if we consider it's a wrong - formulated question and we have to choose from the given options, there is no correct one. But if we assume it's a typo and related to some other sense, still no. But if we follow the closest in the given options, no. But if we consider the original intention, maybe it's a wrong question part. But since we have to match:
• 16: C (clearness)
• 17: No correct option in the given (but if we assume it's a wrong question and we have to pick the least wrong, no. But if we consider the options, maybe it's a misprint and related to another sense. But as per the given options, no. But if we follow the format, we can't match. But if we assume it's a wrong question part and continue:
• 18: E (shadows and highlights help in perceiving 3 - D shapes)
• 19: B (absolute threshold is the smallest amount of a stimulus detected)
• 20: G (cochlea is the fluid - filled structure in the inner ear for sound transmission)

Answer:

1. b
2. c
3. b
4. d
5. c
6. d
7. b
8. c
9. d
10. c
11. C
12. (No correct option in the given set as per the description)
13. E
14. B
15. G