Psychology 3203

Perception - Spring 2005

 
DATE
DAY
TOPIC
Measurement of Perceptual Experience
1/10
M
Course Requirements, etc.
1/12
W

St. Louis Arch

Classic Visual Illusions - What do they tell us?

A strong Ponzo Illusion

Fechner and the mind-body problem

The importance of the absolute threshold

Methods

Your Textbook: 24-26

1/14
F

Classical Psychophysical Techniques

Example Psychophysical Function for Absolute Threshold

Your Textbook: 24-26

1/17
M
MLK DAY
1/19
W

Picture of Ernst Weber

Practice Explaining a Difference Threshold

More Practice Explaining a Difference Threshold

1/21
F

Difference thresholds & Weber's Law

Piano Notes

Example Weber Fractions


Your Textbook: 37-38

1/24
M

Example Scale from Munsell System

...and Fechner's Law

Exercise to guide you through Fechner's Law

Your Textbook: 39

1/26
W

Magnitude estimation & Steven's Power Law

Results of Magnitude Estimation Task with Circles

Possible Relationships

How The Exponent is Calculated

Magnitude Scaling of Pressure, Cold, and Warmth
(Berglund & Harju, 2003)

Partition Scales

Relationship of S to I in Partition Scale

Your Textbook: 40-42

1/28
F

Signal Detection Theory

 

1/31
M

Signal Detection Theory

Sample ROC curve

Separating Strategy from Sensitivity

Your Textbook: 27-34

2/2
W

It's all about 3 guys

Question & Answer/Review [Study Guide]

2/4
F

TEST 1

VISION I
2/7
M

Thinking about light

Light is a portion of the Electromagnetic Spectrum

Light encounters an object

Types of reflection

Your Textbook: 47-50

2/9
W

Everything you wanted to know about the Vertebrate Retina

Simple Diagram of Eye

Simple Diagram of other Eyes

Compound Eye

Compound Eye Circuitry

Saggital Schematic with Retinal Section

Diagram of Eye

Front of Eye

Human Retina

My Myopic Crescent

Diagram of the Retina

Notice the size of Aimee's fovea

Human Fovea

Rod/Cone Distribution

Another map of Rod/Cone Distribution

Acuity Threshold

Eye Movement Tutorial

Here are instructions for the do-it-yourselfer: Cow's Eye

Your Textbook: 51-70

2/11
F

Duplex Retina

Anableps - The 4-eyed Fish

Close View of Eye of Anableps

Another Close View of Eye of Anableps

Diagram of Eye of Anableps

Dark Adaptation Curve

Range of Light Intensities

Your Textbook: 89-95

2/14
M

Brightness Constancy

Example of Simultaneous Brightness Contrast

McCourt Effect

Benussi Rings

2/16
W

Mach Bands

Hermann Grid Illusion

Hermann Grid Illusion on Steroids

The Horseshoe Crab (Limulus)

Limulus again

Lateral Plexus

Lateral Inhibition Circuit

Lateral Inhibition Effect

Diagram of Human Retina

(and John asked about Wolf Spiders)

WS1 WS2 WS3

Your Textbook: 142-150

2/18
F

Color

Newton's Separation Experiment

Newton's Mixing Experiment

Dimensions of Color

The Munsell System of Color Notation

CIE Color System

Creating colors from other colors

Creating colors using subtraction

Nonspectral Colors!

Description of Color Systems from Adobe

Your Textbook: 117-125

2/21
M

Mechanisms of Color

Helmholtz's Color Mixing Experiments

Young-Helmholtz Trichromatic Theory

Maxwell's Additive Color Mixing System

Spectral Sensitivity of Photoreceptors

Ewald Hering

Return to the Color Circle

Colored Afterimages

Opponent Process Circuit

New Explanation of Evolution of Color Vision in Mammals

Your Textbook: 129-134

2/23
W

Color Blindness and Color Deficiencies

Example Test Item

Ishihara Test Items

Simulation of Color Blindness

Another Simulation of Color Blindness

Do some women have 4 color receptors?

Your Textbook: 135-138

2/25
F

Simultaneous Color Contrast
#1 #2 #3 #4 #5 #6

Color Constancy

Edwin Land - Retinex Theory

The construction of an image

The image

The image from the cover of Scientific American

Mondrian

2/28
M

Subjective Colors

Benham's Top

MacKay Star

Filling In vs. Finding Out

Kaniza Figure

Fading Dot Illusion

Stabilized Retinal Image

Sinusoidal Gratings

Spreading Neon Illusion

3/2
W

Question & Answer/Review [Study Guide]

3/4
F
TEST 2
3/7
M
SPRING BREAK
3/9
W
3/11
F
VISION II
3/14
M

Space, Distance, & Depth - Binocular Cues

Corresponding Retinal Points

Vieth-Muller Circle

Noncorresponding Retinal Points

The Horopter

The Horopter and Retinal Disparity

The Horopter and Retinal Disparity 2

Retinal Disparity

Your Textbook: 233-240

3/16
W

Manipulation of Binocular Cues to Produce
Depth Effects

Reproducing Viewpoints with Stereo Photography

Anaglyphs

Effect of Looking at an Anaglyph through a Red Filter

How the Anaglyph Produces its Depth Effects

Example Anaglyphs (red/cyan glasses required)

Fooling Fusion - Single Image Stereograms

Nintendo VirtualBoy

3/18
F

Space, Distance, & Depth - Monocular Cues

Monocular Cues

Aerial Perspective Example

Monocular Depth Illusions

Another Depth Illusion - The Balcony

Drawings of M. C. Escher

Ames Room (2 Mb QT Movie)

Ames Room Diagram

Your Textbook: 218-232

3/21
M

Perception of Movement

Corollary Discharge Theory

Your Textbook: 194-200

3/23
W
Corollary Discharge Theory - Induced Motion

Motion Aftereffect

Standard Induced Motion Example

Stroboscopic Motion: Phi and MagnaPhi

Stroboscopic Motion: Wagon wheel Illusion 1

Stroboscopic Motion: Wagon wheel Illusion 2

 

 

Shadow Cue to Depth

Shadow Cues and Motion

3/25
F

 

Motion Parallax

Motion Parallax Diagram

Structure from Motion 1 (Local vs. Global Occlusion)

Structure from Motion 2 (Accretion & Deletion)

Structure from Motion 3 (Kinetic Depth Effect)

Structure from Motion 4 (Biological Motion)

Depth from Motion 1

Depth from Motion 2

 

3/28
M
Easter
3/30
W

Form

Ambiguous Figure 1

Ambiguous Figure 2

Ambiguous Figure 3

Kaniza Triangle 1

Kaniza Triangle 2

4 Laws of Grouping

Grouping by Common Fate

Change Blindness - Airplane

Change Blindness - Chopper

Change Blindness - Dinner Plate

Change Blindness - Merry Go Round

Change Blindness - Frogs

Change Blindness - Workroom

Change Blindness - Bistro

Classic Form Illusions


Your Textbook: 168-184

4/1
F

Question & Answer/Review [Study Guide]

4/4
M

TEST 3

AUDITION: Parallels and Differences

4/6
W

Physics of Sound

Sound as Pressure Change

Sound as Vibration

Sound as Waves

Sound as a Sine Wave

Sound as a Sine Wave with Phase Angles

Frequency

Amplitude

Phase Interference

A general problem for the hearing system

Common Amplitudes

Your Textbook: 315-325

4/8
F

Auditory Physiology

Structure of the Ear

1000 Hz tone

Your Textbook: 325-332

4/11
M

Auditory Physiology & Pitch

Von Bekesy

Von Bekesy's Mechanical Model

Von Bekesy's Results

A Traveling Wave

Cochlear Implant

Description of Cochlear Implant in operation

Your Textbook: 332-338

4/13
W

Psychophysics of Pitch and Loudness

Frequency to Pitch function

Equal Loudness Contour

Audibility Function

Speech Frequencies

Amplitude-Frequency Shift

Doppler Effect

Neuhoff-McBeath Doppler Illusion

Your Textbook: 347-357

4/15
F

Music Pitch Perception

Piano Note

Timbre

The Missing Fundamental Effect

Pitch as a linear scale

Octave effect

Piano Octaves

Pitch as a helix

Pitch chroma circle

Shepard tone

Endless staircase - visual illusion

Endless staircase - Shepard illusion

Shepard discrete steps [wav] [mp3]

Risset continuous change [wav] [mp3]

Your textbook: 376-380

4/18
M

Sound Localization

Directions terminology

Basic situation

Interaural Intensity Difference

Interaural Time Difference

Cone of Confusion

Hearing and Not Hearing Echos

The Pseudophone: Hearing vs. Seeing

Your Textbook: 365-374

4/20
W
Question & Answer/Review [Study Guide]
4/22
F

No Class - Chancellor Installation

4/25
M
TEST 4
4/27
W

Review for Final Exam