moduel 5.2

Question 1

define frequency

Answer 1

how high or low a sound is; pitch (Hz)

Question 2

define intensity

Answer 2

loudness (dB); measured wave by amplitude

Question 3

what are the three smallest bones in the body? where is it located? what do they do? which bone is connected to the oval window

Answer 3

malleus, incus, stapes. The ossicle. amplify vibration. the stapes

Question 4

where are your auditory hairs located

Answer 4

the basilar membrane, which is inside the cochlea

Question 5

what is transduction

Answer 5

external sensation —> neural firing in brain

Question 6

We hear a specific pitch because cells at a specific place on the basilar membrane fire. For example it is believed that lower frequency sound excites cells deeper in cochlea. What theory is this?

Answer 6

place theory

Question 7

the basilar membrane vibrates in different places depending on the pitch of the sound you hear. what does frequency theory state

Answer 7

understand pitch b/c of rate of firing in basilar membrane

Question 8

what does the somatosensory cortex process?

Answer 8

touch and motion

Question 9

the mechanoreceptors are receptors in the skin that tell us where to move. T/F

Answer 9

F. receptors in skin that sense different kinds of pressure

Question 10

define Merkel receptor

Answer 10

fires continuously as long as skin is in contact with an object

Question 11

Meisner corpuscle

Answer 11

respond to pressure applied then removed

Question 12

Ruffini cylinder

Answer 12

Interpreting stretching of skin

Question 13

Pacinian corpuscle

Answer 13

feels vibration and texture

Question 14

Rank body parts in order of somatotopic organization of highest to lowest

Hand

hip

eye

tongue

shoulder

Answer 14

tongue

eye

Hand

shoulder

hip

Question 15

Where is the Merkel Receptor located, and what does it do?

a
It is located deeper in the skin and senses vibrations.

b
It is located close to the surface of the skin and fires when pressure is first applied and when it is removed.

c
It is located deeper in the skin and sends messages about the stretching of the skin.

d
It is located close to the surface of the skin and fires continuously while the skin is in contact with an object.

Answer 15

d
It is located close to the surface of the skin and fires continuously while the skin is in contact with an object.

(Merkel is a pervert)

Question 16

we sense temperature change through our

photoreceptors

pharorecpetor

thermoreceptors

Answer 16

thermoreceptors

Question 17

what is the kinesthetic sense

Answer 17

where our bodies are in space and how to move our bodies to accomplish tasks

Question 18

define vestibular sense

Answer 18

sense of balance

Question 19

what doe the semicircular canals sense

Answer 19

change in acceleration and rotation

Question 20

which cell responds to force of gravity

Answer 20

hair cells

Question 21

which structure in the inner ear responds to cues about balance and posture

Answer 21

vestibular sacs

Question 22

what is the absolute threshold

Answer 22

level of intensity required to create a conscious experience.

Question 23

some people have a more liberal response bias when it comes to stimulus what does this mean?

Answer 23

they have high “hit rate” so they are more likely to say stimulus is present even if non was presented

Question 24

some people have a more conservative response bias when it comes to stimulus what does this mean?

Answer 24

These people tend to have a higher miss rate. That is, they tend to say they did not perceive a stimulus even when one was presented, but they also have a higher correct rejection rate, so they are more likely to say there was no stimulus when no stimulus was presented