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Flashcards in Sensation Deck (94):
1

Refers to immediate and basic experiences generated by isolated simple stimuli

Sensation

2

The process through which the senses detect visual, auditory and other sensory stimuli and transmits them to the brain

Sensation

3

Receptors that are sensitive to stimuli coming from a distance in the external environment

Distance receptor

4

Receptors that are sensitive only to external objects that actually have contact with the body

Contact receptors

5

External receptors

Exteroceptor

6

Awareness of position and movement

Proprioceptors

7

Gives rise to the sensation of muscle movement

Kinesthetic sense

8

Is concerned with equilibrium (portion of ear)

Vestibular

9

Internal receptors

Interoceptors or visceroceptors

10

Gives rise to organic sensation
Closely associated with experiences relating to biological drives and emotions

Organic

11

Sense of sight

Visual sensation

12

Sense of hearing

Auditory sensation

13

Sense of smell

Olfactory sensation

14

Sense of taste

Gustatory sensation

15

Sense of touch

Cutaneous or skin sensation

16

Sense of active movement

Kinesthetic

17

Sense of passive movement

Vestibular

18

Sense of internal bodily movement

Organic sensation

19

Weakest amount of a stimulus that can be distinguished from no stimulus at all

Absolute threshold

20

Minimum difference in magnitude of two stimuli required to tell them apart

Difference threshold

21

Standard of difference

Weber’s constant

22

Stimulus characteristics and psychological factors interact to influence whether a stimulus is detected

Signal detection theory

23

Process by which we become more sensitive to stimuli of low magnitude;
Positive adaptation

Sensitization

24

Process by which we become less sensitive to stimuli that remains the same;
Negative adaptation

Desensitization

25

Bundles of nerve fibers that convey sensory impulses from one nueron to the next

Transmissors

26

The sense organ for visual sensation

Eye

27

Electronagnetic waves
The stimulus to which the eye is sensitive

Light waves

28

The receptor of the eye

Rods and cones

29

The brain center of the eye

Occipital lobe

30

Greatest in the fovea
Blind spot

Visual acuity

31

Wavelength of light

Hue

32

Degree of brightness or darkness

Value

33

Intensity of color

Saturation

34

The sense organ for hearing

Ear

35

Ear’s receptor

Organ of corti

36

Ear’s stimulus

Sound waves

37

Ear’s brain center

Temporal lobe

38

Funnels sound waves to the eardrum

Outer ear

39

Acts as an amplifier

Middle ear

40

Cochlea
Basilar membrane
Organ of corti

Inner eat

41

Its the frequency, expressed in hertz

Pitch

42

Height of sound waves
Expressed in decibels

Loudness

43

Complexity of sound

Tonal quality or timbre

44

Damage to middle ear; hearing aids can help

Conductive deafness

45

Damage to inner ear or auditory nerve;
Cochlear implants may help with damage to inner ear but not auditory nerve

Sensorineural deafness

46

Transfers auditory information from the inner ear to the brain

Auditory nerve

47

The organ to sense smell

Nose

48

Nose’s receptor

Olfactory bulb

49

Nose’s brain center

Parietal

50

Nose’s stimulus

Gaseous substances

51

The organ for taste

Tongue

52

Taste stimulus

Flavor

53

Tongue’s brain center

Parietal

54

Neuron that ends in a highly organized group of taste cells

Taste buds

55

The sense organ for cutaneous sensation

Skin

56

The outer layer of skin

Epidermis

57

An intermediate deep layer of skin

Dermis

58

A layer of skin where blood vessels and nerve endings are located which enables us to experience skin sensation

Hypodermis

59

Stimulus of touch

Thermal, pressure, pain

60

Receptor of touch

Free nerve endings

61

Brain center of touch

Parietal lobe

62

Skin sensory receptors fire when skin surface is touched

Active touching

63

Some of these are devoted to perception of sensations in those areas

Sensory cortex

64

Include sensation of touch, pressure, pain etc

Somatosensation

65

Ability to identify an object through the sense of touch

Stereognosis

66

Receptors that stimulate pain

Nociceptors

67

Facilitate transmission of pain message, heighten circulation to injured area;
Emotional response and response to stress affect degree of pain

Prostaglandins

68

May involve activation of nerves in the stump of missing limb

Phantom limb pain

69

Nervous system can only process a limited amount of stimulation;
Rubbing the pained area competes for neural attention, it closes the gate on pain messages to the brain

Gate theory of pain

70

Receptor of touch in somatosensation

Merkels disk

71

Receptor of pressure, somatosensation

Pacinian corpuscles

72

Receptor of pain, somatosensation

Free nerve endings

73

Receptor of cold, somatosensation

Krause’s corpuscles

74

Receptor of warm, somatosensation

Ruffini’s ending

75

Receptor for kinaesthesia, somatosensation

Proprioceptors

76

Sense organs of active movement

Muscles, tendons, and joints

77

Stimulus of movement

Physical movement

78

Are the receptors of kinesthetic sensation

Free nerve endings

79

Sense of Movement brain center

Frontal lobe and cerebellum

80

Sense organ of passive movement

Inner portion of the ear

81

Stimulus of passive movement

Gravity
Bodili posture

82

Receptors of passive movement

Vestibule
Semicircular canal

83

Gives the sensation for body movement

Vestibule

84

Gives the sensation of head movement

Semicircular canal

85

The brain center of passive movement

Frontal lobe and parietal lobe

86

Sense organs of internal bodily movement

Visceral and other internal organs

87

Brain center of organic sensation

Hypothalamus and medulla oblongata

88

Stimulus of organic sensation

Feeling of thirst, hunger, nausea
Bowel tensions, suffocation

89

Loss of vision

Anopsia

90

Loss of audition

Anacousia

91

Loss of olfaction

Anosmia

92

Loss of gustation

Aguesia

93

Failure to feel pain

Analgesia

94

Failure to identify object through touch

Asteriognosia