ch.4 Flashcards Preview

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Flashcards in ch.4 Deck (48):
1

synesthesia

perceptual experience of one sense that is evoked by another. (letters are colors)

2

sensation

stimulation of a sense organ

3

perception

organization, interpretation, sensation

4

transduction

encoded neural signals sent to the nervous system

5

psychophysics

measure strength of stimulus

6

absolute threshold

minimum intensity needed to detect a stimulus

7

sensory adaptation

organism adapts over time (light blinds but eventually eyes get use to it)

8

visual acuity

ability to see fine detail

9

length

color

10

amplitude

brightness of light

11

purity

saturation (richness of color)

12

accomadation

eye maintains a clear image of retina

13

retina

lines back of eyeball.

14

eyeball too long/ short

nearsightedness/ farsightedness

15

cones

detect color. ordinary daylight conditions

16

rods

active under low light

17

visual-form agnosia

inability to recognize objects by sight

18

binding problem

features linked together to see unified objects

19

illusory conjuction

features incorrectly combined

20

parietal lobe

"where pathway" dorsal stream

21

perceptual constancy

perception remains consistent

22

closure

fill in missing elements

23

continuity

follow one line

24

similarity

regions that are similar in color, lightness, shape.

25

proximity

objects that are close together are grouped together

26

common fate

(arrows moving) objects grouped together when moving separately

27

template

mental representation that compares to a shape in the retinal image (objects stored in memory)

28

monoculare depth cues

aspects of a scene that yield information about depth when viewed with one eye (smaller in dinstance)

29

binocular disparity

diff. between the retinal images of the two eyes that provides information about depth.

30

texture gradient

diff. surfaces supply depth

31

interposition

one object partly blocks another

32

relative height in the image

closer and farther away object create depth.

33

apparent motion

flashing lights as a whole moving object.

34

change blindness

when ppl fail to detect visual changes of a scene.

35

inattentional blidness

failure to perceive objects that are not the focus of attention.

36

pitch

how high or low a sound is.

37

loudness

a sounds intensity

38

timbre

a listeners experience of sound quality or resonance.

39

cochlea

fluid filled tube. auditory transduction

40

basilar membrane

undulates when vibrations from ossicles reach the cochlear fluid

41

hair cells

Auditory receptor neurons embedded in the basilar membrane.

42

area A1

occipital lobe that contains the primary auditory cortex

43

linear perspective

yellow brick road

44

middle temporal

motion perception

45

temporal

speeds and directions of motion

46

conjunction search

students look for diff. in objects.

47

ataxia

cant move properly

48

agnosia

can't recognize objects