unit 4

Question 1

bottom up processing

Answer 1

starts at your sensory receptors and works up to higher levels of processing

Question 2

top down processing

Answer 2

constructs perceptions by drawing on your experiences and expectations this is how u interpret

Question 3

receive and represent stimulus energies from our environment

Answer 3

sensation

Question 4

the brain organizes and interprets sensory input

Answer 4

perception

Question 5

predicts how and when we detect the presence of a faint stimulus amid background noise

Answer 5

signal detection theory

Question 6

for an average person to perceive a difference, two stimuli. must differ by a constant minimum percentage

Answer 6

weber law

Question 7

a mental predisposition to perceive one thing and not the other

affects top down what we hear taste feel and see

Answer 7

perceptual set

Question 8

wavelength

Answer 8

the distance from one wave peak to the next

Question 9

the number of wavelengths that can pass a point in a given time

Answer 9

frequency

Question 10

the height from peak to trough

Answer 10

amplitude

Question 11

light enters the eyes through the _____ which bends light to help provide focus

Answer 11

cornea

Question 12

after the cornea the light passes through a small adjustable opening called

Answer 12

pupil

Question 13

surrounds the pupil and controls its size is the _____ a colored muscle that dilates or constricts in response to light sensitivity

Answer 13

iris

Question 14

after it passes the pupil light hits the transparent ____ in your eye which focuses the light rays into an image on your retina

Answer 14

lens

Question 15

a multilayered tissue on the eyeballs sensitive inner surface that contains receptor rods and cones plus layers of neurons that begin the process of visual info

Answer 15

retina

Question 16

retinal receptors that detect black white and gray and are sensitive to movement

Answer 16

rods

Question 17

retinal receptors that are concentrated near the center of the retina and that function in the daylight detect fine detail and give rise to color sensations

Answer 17

cones

Question 18

the nerve that carrie’s neural impulses from the eye to the brain made of retinal ganglion cells

Answer 18

optic nerve

Question 19

an organized whole

Answer 19

gesalt

Question 20

a depth cue such as retinal disparity that depends on the use of two eyes

Answer 20

binocular cues

Question 21

a depth cue such as interposition or linear perspective available to either eye alone

Answer 21

monocular cues

Question 22

an object whose snape cannot change seems to change because of the angle but we still know it’s the same object because of

Answer 22

shape constancy

Question 23

the height/amplitude determines their perceived_____

the length/frequency determines the _____

Answer 23

loudness

pitch(the high or low tone)

Question 24

the shorter the wavelength the ____ the frequency

Answer 24

higher

Question 25

the theory that the spinal cord contains a neurological gate that blocks pain signals or allows them to pass onto the brain

Answer 25

gate control theory

Question 26

monitors your head’s position and movement

Answer 26

vestibular sense

Question 27

staring at a certain color like green for a while the look at a white paper and you see the opponent color like red

Answer 27

afterimage

Question 28

a problem the cells called cones causes

Answer 28

color blindness

Question 29

when we respond to an old
stimulus as if it were new again

Answer 29

dishabituation

Question 30

process that allows an individual focus on
one thing while other things are happening

Answer 30

selective attention