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Psychology > Chapter 3- Sensation & Perception > Flashcards

Chapter 3- Sensation & Perception Flashcards

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1
Q

Sensation

A

The awareness that a receptor is simulated

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2
Q

Perception

A

Organizing and interpreting sensory input

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3
Q

Psychophysics

A

Study of relationship between physical events and corresponding experience w those events

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4
Q

Absolute Threshold

A

Smallest amount of stimulus needed in order to detect a stimulus is present.
Vision: single candle 30 miles perf conditions
Hear: Tick of watch from 20 ft away
Smell: 1 drop perfume 6-room apt
Taste: 1 tsp of sugar in 2 gallons of water
Touch: Wing of bee in cheek, dropped from 1cm

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5
Q

Just-Noticeable Difference

A

The size of difference in a stimulus needed to notice a change.
Ex: water temp, change light, temp in room

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6
Q

Weber’s Law

A

A percentage of change is necessary to detect a difference.
Ex 400 lb person and 100 lb person loose 70 lbs. Who will u notice first? 100 lb since they are smaller have less weight to loose

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7
Q

Blind spot

A

Hole in vision, don’t be access too, can’t see naturally fill in the rest

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8
Q

Optic Nerve

A

Pathway carries visual info from eye to brain

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9
Q

Rods

A

located in eye, 100-120 million very sensitive to light, only register shades of grey

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10
Q

Cones

A

located in eye 5-6 million, sensitive to wavelength, allow color vision

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11
Q

Theory of color vision

A

red vs green
blue vs yellow
black vs white

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12
Q

Proximity

A

How far things are in relation to each other

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13
Q

Gestalt Psychology

A

Thought idea of whole was differ than sum, objects vs sum of parts

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14
Q

Closure

A

filling in gaps to make sense of something

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15
Q

Bottom-Up Process

A

initiated by stimulus input

Ex: going to concert and not knowing song list

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16
Q

Top Down

A

Guided by expectations

Ex going to concert after studying concert list

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17
Q

Perpetual Set

A

Sum of your assumptions that lead you to expect certain objects.
Ex 2 people can look at same thing, same time and see different, perspective

18
Q

Pop-out

A

The difference in stimulus; obvious, immediate change

19
Q

Repetition blindness

A

inability to see the second occurrence of a stimulus that appears twice in succession.

20
Q

Change blindness

A

Do not notice a significant difference in the background/obvious changes when focusing on something else

21
Q

Stroop test

A

takes place in frontal lobe; used for testing brain damage, ADHD, addictions, depression, dementia

22
Q

Sensation&raquo_space;»> Perception

A

Stimulus Energy (light, sound), Sensory Receptors (eyes, ears), Neural Impulses, Brain (visual, auditory) occipital lobe

23
Q

Somesthetic senses

A

Perceiving body’s position in space

24
Q

Kinesthetic sense

A

movement and position of limbs

Ex sports

25
Q

Perpetual Set

A

Sum of your assumptions that lead you to expect certain objects.
Ex 2 people can look at same thing, same time and see different, perspective

26
Q

Pop-out

A

The difference in stimulus; obvious, immediate change

27
Q

Repetition blindness

A

inability to see the second occurrence of a stimulus that appears twice in succession.

28
Q

Change blindness

A

Do not notice a significant difference in the background/obvious changes when focusing on something else

29
Q

Stroop test

A

takes place in frontal lobe; used for testing brain damage, ADHD, addictions, depression, dementia

30
Q

Sensation&raquo_space;»> Perception

A

Stimulus Energy (light, sound), Sensory Receptors (eyes, ears), Neural Impulses, Brain (visual, auditory) occipital lobe

31
Q

Somesthetic senses

A

Perceiving body’s position in space

32
Q

Kinesthetic sense

A

movement and position of limbs

Ex sports

33
Q

Absolute thresholds limits

A

VISION; single flame 30 miles on dark clear night
HEARING: Tick if a watch from 20 feet in total quiet
SMELL: 1 drop perfume in 6-room apt
TASTE: 1 tsp sugar in 2 gallons
TOUCH: Wing of a been on cheek, dropped 1 cm

34
Q

Transduction

A

Physical energy is converted to neural impulses

35
Q

Pupil

A

What allows light in, black hole in eye

36
Q

Iris

A

colored part, determines amt of light coming in and size of pupil

37
Q

Cornea

A

Clear protective covering

38
Q

Color blind

A

Unable to distinguish red from green, not real color blind have trouble w hue

39
Q

Vestibular sense

A

sense of balance

40
Q

Congenital

A

insensibility to pain

Psychology (5 decks)

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