Sensation and Perception Flashcards
1
Q
Sensation
A
Detection of physical energy
2
Q
Transduction
A
Convert energy to neural impulses
3
Q
Perception
A
Determine external stimuli from sensory stimulation Interpretation of neural impulses
4
Q
Sensory Systems
A
- Touch
- Taste
- Smell
- Sight
- Hearing
- Balance
- Proprioception
- Kinesthesis
- Heat (somatic)
- Pain
- Pressure
5
Q
Law of Specific Nerve Energies
A
- Signals on a sensory pathway are interpreted as that type of information
- Synesthesia
6
Q
Synesthesia
A
Inappropriately experience a different moduality
7
Q
Distal Stimulus
A
- Reflects or radiates energy
- “Out there” (vision)
8
Q
Proximal Stimulus
A
- Affects sense organs
- What you are in contact with
9
Q
Psychophysical Principles
A
- Psychophysics
- Detection
10
Q
Psychophysics
A
Relate physical properties to mental experience
11
Q
Detection
A
Determine whether a stimulus is present
12
Q
Absolute Threshold
A
- 50%
- Things below- Subliminal
- Things above- Superliminal
13
Q
Some Thresholds
A
- Vision- candle flame seen at 30 miles on a dark clear night
- Hearing- the tick of a watch under quiet conditions at 20 ft.
- Taste- 1 teaspoon of sugar in 2 gallons of water
- Smell- 1 drop of perfume diffused into the entire volume of a six-room apartment
- Touch- wing of a fly falling on one’s cheek from a distance of 1 centimeter
14
Q
Signal Detection Theory
A
- 4 types of responses
15
Q
Types of responses
A
- Hits- “Yes” item there
- Misses- “No” item there
- False Alarm- “Yes” item not there
- Correct Rejections- “No” item not there
