psych unit 3 quiz

Question 1

signal present, observer does not respond

Answer 1

miss

Question 2

signal absent, observer responds

Answer 2

false alarm

Question 3

signal absent, observer does not respond

Answer 3

correct rejection

Question 4

webers law

Answer 4

difference threshold is a constant function of standard stimulus used to measure it

Question 5

small constant

Answer 5

can detect a small difference

Question 6

stevens powers law

Answer 6

perceived magnitude of a stimulus is equal to actual physical stimulus raised to a constant power

Question 7

wavelength

Answer 7

the distance from the peak of one wave to the peak of the next, left and right

Question 8

absolute threshold

Answer 8

minimum amount of a sensory stimuli detected 50% of the time

Question 9

subliminal stimuli

Answer 9

detected 49% of the time

Question 10

signal present, observer responds

Answer 10

hit

Question 11

amplitude

Answer 11

the height of a wave’s crest, up and down

Question 12

frequency

Answer 12

the number of waves produced in a given amount of time

Question 13

short waves

Answer 13

blue light

Question 14

long waves

Answer 14

red light

Question 15

mcgurk effect

Answer 15

brain combines visual and auditory input for human speech

Question 16

transduction

Answer 16

physical energy must be converted to neural signals

Question 17

accomodation

Answer 17

faces light directly on the retina

Question 18

nearsighted

Answer 18

cant see far away, most common

Question 19

farsighted

Answer 19

cant see close up

Question 20

blindsight

Answer 20

no visual awareness but can still process information

Question 21

rods

Answer 21

achromatic (black and white), dim, more of them

Question 22

cones

Answer 22

color, bright, less of them

Question 23

afterimages

Answer 23

cones get tired and make you see a opposite color pair