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Flashcards in chapter 3 Deck (21):
1

Sensation
•defintion
•3 types

Receiving information from the outside world
1. Photoreception
2. Mechanoreception
3. Chemoreception

2

Photoreception

Detection of light

3

Mechanoreception

detection of vibration (hearing) and pressure (touch)

4

Chemoreception

detection of chemical stimuli (taste and touch)

5

Synaesthesia
•definition
•example

An experience in one sense induces an experience in another sense
•hearing music and then tasting tuna

6

Sensation and perception process
•3 steps

1. sensation = detects signals primarily through 5 senses
2. Attention = Concentrate on signals
3. Perception = create meaning from signals

7

4 types of attention

1. Divided attention
2. Selective attention
3. Vigilance (passive)
4. Search (active)

8

Divided attention

•better when in different modes (senses)
•better when familiar tasks

9

Selective attention

•concentrate on something, filter out the rest
•causes unintentional blindness (no perception)

10

Vigilance (passive)
•definition
•example

•waiting for a signal, focused on a defined space
•driving in fog, eyes focused in front of car

11

Search (active)
•definition
•example

Scanning environment for signal
•looking for friend in library

12

Perception

Meaning (understanding) we give to signals

13

Gestalt

•Organize in meaningful ways
•naturally impose patients

14

Gestalt principles
•4

1. Closure
2. Proximity
3. Similarity
4. Continuity

15

Closure

Missing pieces will be filled in

16

Proximity

elements close in space are grouped together

17

Similarity

similar items are grouped together

18

Continuity

Perceive continuous patterns and not pieces

19

2 types of visual cues

1. Monocular cues
2. Binocular cues

20

Monocular cues
•definition
•example

One eye
•relative size/tiny object is farther

21

Binocular cues
•definition
•example

need both eyes
•account for retinal disparity and eye dominance