Ch 2 discretes

Question 1

A weight lifter is just able to tell the difference between 100 and 125 pounds. According to Weber's law, the lifter would notice a difference between:
A. 125 and 150 pounds
B. 5 and 6 pounds
C. 25 and 35 pounds
D. 225 and 275 pounds

Answer 1

C. 25 and 35 pounds

40% increase, well above the other options

Question 2

A man is at a party with his wife. There is loud music in the background and the location is crowded. While listening to the music he hears what he believes to be his wife's laughter and turns around to investigate. The man is exhibiting:
A. feature detection
B. bottom-up processing
C. vestibular sense
D. signal detection

Answer 2

D. signal detection

Question 3

A woman is at a restaurant and orders a spicy entree. After the first bite, she experiences burning in her mouth and becomes concerned that her food is too hot for her. The next few bites are similarly uncomfortable, but after a while the spiciness seems to subside somewhat, and by the end of the meal, she doesn't notice the spice level. The end of the meal experience is best described as:
A. adaptation
B. signal detection
C. a difference threshold
D. pain perception

Answer 3

A. adaptation

Question 4

Which sensory receptors send signals in response to tissue damage?
A. chemoreceptors
B. nocireceptors
C. osmoreceptors
D. photoreceptors

Answer 4

B. nocireceptors

Question 5

Which part of the eye is responsible for gathering and focusing light?
A. cornea
B. pupil
C. Iris
D. retina

Answer 5

A. cornea

Cornea is responsible for gathering and focusing light. The iris and pupil, choices B and C are both involved in regulating the amount of light coming into the eye but not focusing it. The retina, choice D, transduces the light into electrical signals that are sent to the brain

Lens serves similar function to cornea and would also be a valid answer to this question

Question 6

A man is looking for change to do laundry. He decides to look under the seats of his car. He uses a flashlight but is still unable to get more than an obscured look at the space below. There are various items such as wrappers and papers, but the man sees the glint of silver from an object laying flat and determines it to be a coin. To make this determination, this man used:
A. signal detection
B. sensory detection
C. feature detection
K. kinesthetic sense

Answer 6

C. feature detection

Question 7

Upon which part of the eye are images protected and transduced into electrical signals?
A. cornea
B. pupil
C. retina
D. lens

Answer 7

C. retina

Question 8

The ability to sense stimuli against one's own skin is known as:
A. somatosensation
B. kinesthetic sense
C. vestibular sense
D. chemoreception

Answer 8

A. somatosensation

Question 9

Which of the following is NOT a taste modality?
A. sweet
B. floral
C. Savory
D. bitter

Answer 9

B. floral

Question 10

Which of the following best describes the difference between endolymph and perilymph?
A. endolymph is found in the vestibule, while perilymph is found in the cochlea
B. endolymph is found in the cochlea, while perilymph is found in the vestibule
C. endolymph is found in the membranous labyrinth, while perilymph is found in the bony labyrinth
D. endolymph is found in the bony labyrinth, while perilymph is found in the membranous labyrinth

Answer 10

C. endolymph is found in the membranous labyrinth, while perilymph is found in the bony labyrinth

Question 11

Chemicals that compel behavior after binding with chemoreceptors are known as:
A. pheromones
B. olfactory receptors
C. somatostimuli
D. papillae

Answer 11

A. pheromones

Question 12

Prolonged vitamin B12 deficiency can be associated with subacute combined degeneration of the spinal cord. Patients with this disease have difficulty walking because they lose the ability to feel where their feet are in space. This represents a loss of:
A. vestibular sense
B. kinesthetic sense
C. parallel processing
D. feature detection

Answer 12

B. kinesthetic sense

Question 13

A person proofreading a paper reads over a long, misspelled word in which an "e" is replaced with an "o." The person does not recognize the error and reads the word as correct. Which of the following could explain why the proofreader read the word as correct?
A. parallel processing
B. feature detection
C. top-down processing
D. bottom-up processing

Answer 13

C. top-down processing

Question 14

A corporate logo uses five unconnected angles equally spaced in a circular fashion. When viewed, it appears to be a star. Which of the following is the logo artist using to create a complete pattern to viewers?
A. bottom-up processing
B. top-down processing
C. gate theory
D. gestalt principles

Answer 14

D. gestalt principles

Question 15

A patient comes in with a tumor of the pituitary gland, which grows upwards into the optic chiasm and causes a visual field defect. The most likely defect from compression of the optic chiasm is:
A.complete blindness in one eye
B. loss of the upper visual field in both eyes
C. loss of the nasal visual fields in both eyes
D. loss of the temporal visual fields in both eyes

Answer 15

D. loss of the temporal visual fields in both eyes