Unit 4 – Chapter 5 – Sensation Notes
Sensation v. Perception
Sensation-
Perception-
Bottom Up (Sensation) v. Top Down (Perception)
Bottom UpTop Down-
Psychophysics
Psychophysics is…………………
LightSoundPressure[[
Taste-
Thresholds
1. Absolute Threshold-
2. Subliminal-
3. Difference ThresholdWeber’s Law4. Signal Detection Theory-
Sensory Adaption-
The Science of Energy and Sensation
1. Transduction2. Wavelength-
3. Hue4. Intensity-
1.
Sense Number 1: The Eye
Step One- Light Enters the Eye
1. Cornea2. Pupil-
3. Iris-
Step Two- An Image is produced
1. Lens2. Accommodation-
3. Retina-
Step Three- A chemical reaction is made and the
image is processed in the Brain
1. Rods and Cones-
2. Bipolar Cells3. Ganglion Cells-
4. Optic Nerve-
5. Thalamus-
6. Visual Cortex-
7. Occipital Lobe-
Parts of the Retina1. Blind Spot2. Fovea-
3. Cones4. Rods-
Errors in Vision1. Acuity2. Nearsightedness-
3. Farsightedness-
Vision Involves Parallel Processing
1. Parallel V. Serial Processing-
2. Feature Detectors-
Two theories on how we see colors
1. Trichromatic ( Three Color) Theory-
2. Opponent Process Theory-
Color Constancy-
Context Affects Color-
2. Sense Number Two :The Ear
Amplitude-
Frequency-
Hearing Threshold
Decibels
Parts of the Ear
1. Outer EarJobParts2. Middle EarJobParts3. Inner EarJobParts-
How we HearStep One:
Step Two:
Step Three:
Step Four:
Step Five:
Step Six:
Step Seven:
Inner ear and Vestibular Sense
Vestibular Sac-
Vestibular Sense-
How Do we Perceive Pitch:
Theory One- Helmholtz’s Place theory-
Theory Two- Frequency Theory-
Volley Principle-
How do we Locate Sounds
Parallel Processing
Hear Loss- 2 Kinds
1. Conductive Hearing Loss
2. Sensorineural Hearing Loss-
3. Sense Three- Touch
Premature BabiesMonkeys4 Skin Receptors
Gate Control Theory-
Social Influence on Pain (Willing the pain to go away)
Memories and Pain
4/5. Sense 4 and 5- Taste and Smell
4 Taste Sensations
Taste and Smell
Smell receptors and process of smell
Smell and Emotion
Sensory Restriction