Ch 2 Sensation and Perception

Question 0

transduction is the conversion of

Answer 0

stimulus from external and internal environment to electrical signals in the nervous system

Question 1

sensation is like _____

Answer 1

transduction

Question 2

perception is

Answer 2

the processing of sensory information

Question 3

Nociceptors respond to

Answer 3

painful stimuli

Question 4

Weber’s law

Answer 4

Initial value divided by jnd (just noticeable difference)

Question 5

signal detection theory

Answer 5

perception can be affected by nonsensory factors

Question 6

nonsensory factors

Answer 6

experiences (memory)
motives
expectations

Question 7

duplexity or duplicity theory of vision

Answer 7

states that we have two photoreceptors
cones - color
rods- black and white

Question 8

rods have _____ light absorbence

Answer 8

high

Question 9

choroidal vessels

Answer 9

supply eye with nutrients

Question 10

canal of schlemm

Answer 10

allows aqueous humor to drain

Question 11

what pigment do rods contain?

Answer 11

rhodopsin

Question 12

fovea only has _____

Answer 12

cones

Question 13

Cornea

Answer 13

out clear layer of eye

Question 14

What holds and constricts the lens?

Answer 14

suspensory ligaments

ciliary muscle

Question 15

What produces the aqueous humor?

Answer 15

posterior chamber

Question 16

Where is the aqueous humor drained?

Answer 16

canal of schlemm

Question 17

What cells complement the rods and cones?

Answer 17

bipolar cells - connects rods and cones
ganglion cell - bipolar cells synapse onto ganglion cells
amacrine cell - receive many signals before passing information on

Question 18

color is detected by what eye cells

Answer 18

rods/cones

Question 19

shape is detected by what eye cells?

Answer 19

parvocellular

Question 20

motion is detected by what eye cells

Answer 20

magnocellular

“Magnocellular specialize in Motion”

Question 21

Visual pathway

Answer 21

Eye > rods/cones > Optic nerve > Optic chiasm > Optic tracts >Lateral geniculate nucleus (LGN) of the thalamus >visual radiation to visual cortex

Question 22

What cells in the ear are like rods/cones?

Answer 22

Hair cells

Question 23

The vestibule in the ear helps with….

Answer 23

balance in 3D space - acceleration

Question 24

The vestibule has two parts the ….

Answer 24

utricle

saccule

Question 25

Whats the ampulla?

Answer 25

The end of the semicircular canals

Question 26

Pneumonic:
LGN -
MGN -

Answer 26

Lateral geniculate is for light (Eye)

Medial geniculate is for music (Ear)

Question 27

What sense does not pass through thalamus for relay?

Answer 27

Smell

Question 28

Omami -

Answer 28

Savory taste

Question 29

What temperature is physiological zero?

Answer 29

98.6 F

37 C

Question 30

proprioreception

Answer 30

spacial orientation receptors in muscles and joints

Question 31

Gestalt principles says that …..

Answer 31

Ways the brain infers missing parts to a picture

Question 32

Gestalt proximity priniple

Answer 32

elements close to each other generally tend be perceived as one unit

Question 33

Gestalts Law of Pragnanz

Answer 33

Perceptual organization will always be as simple or symmetrical or regular