Psychology 3203 Perception - Summer 2007
DATE	DAY	TOPIC
Measurement of Perceptual Experience
5/22	T	Course Requirements, etc.
5/23	W	Classic Visual Illusions and the establishment of Psychophysics St. Louis Arch Classic Visual Illusions - What do they tell us? A strong Ponzo Illusion Zollner Illusion An interactive Muller-Lyer illusion Fechner: The mind-body problem and the importance of the absolute threshold Classical Psychophysical Techniques Methods Example Psychophysical Function for Absolute Threshold Normal Distribution Normal Distribution - Cumulative Form Your Textbook: 12-14
		Picture of Ernst Weber Practice Explaining a Difference Threshold More Practice Explaining a Difference Threshold Difference thresholds & Weber's Law Example Weber Fractions
5/24	R	The Psychophysical Laws of Weber vs Fechner vs Stevens Piano Notes Octave Jumps -- Pitch vs. Frequency Weber's Law vs. Fechner's Law Exercise to guide you through Fechner's Law
		Magnitude estimation & Stevens' Power Law Magnitude Estimation Demo Results of Magnitude Estimation Task with Circles Possible Relationships How The Exponent is Calculated Example Exponents Magnitude Scaling of Pressure, Cold, and Warmth (Berglund & Harju, 2003) Your Textbook: 14-16
5/28	M	Signal Detection Theory Sample ROC curve Separating Strategy from Sensitivity Your Textbook: 373-378
		Signal Detection Theory 3 HIV Tests - from Swets (1992) Partition Scales Relationship of S to I in Partition Scale Example Scale from Munsell System Example Category Scale - Stellar Magnitude Example Category Scale - Borg RPE
5/29	T	It's all about 3 guys ... ... and their descendants Question & Answer/Review [ Study Guide ] Test 1 Test 1 Results
VISION I
5/30	W	Light Physics & Visual Physiology What is light? Light is a portion of the Electromagnetic Spectrum Light encounters an object Types of reflection Your Textbook: 47-50 Recent Article on Slow Light Cool Picture of Burning Light Bulb by Rich Legg How To create a similar picture Living in a Reversed World - Erismann & Kohler, narrated by JJ Gibson ---------------------------------------------------------------------- Everything you wanted to know about the Vertebrate Retina Simple Diagram of Eye Saggital Schematic with Retinal Section Diagram of Eye Front of Eye Human Retina Visual Pathways My Myopic Crescent & Choroidal Folds Diagram of the Retina Another Retina Diagram Notice the size of Aimee's fovea Human Fovea Rod/Cone Distribution Another map of Rod/Cone Distribution Acuity Threshold Eye Movement Tutorial Cat Tapetum Simple Diagram of other Eyes Compound Eye Compound Eye Circuitry Here are instructions for the do-it-yourselfer: Cow's Eye Your Textbook: 29-36
		Structure of Eye continued Visual Pathways Dorsal vs. Ventral Visual Streams
5/31	R	Duplex Retina Compound Eye Compound Eye Circuitry Wolf Spider Eyes: WS1 WS2 WS3 WS4 WS5 WS6 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 Purkinje Shift Range of Light Intensities Medical Conditions Night Blindness - Vitamin A Deficiency (Hecht & Mandelbaum, 1940) Achromatopsia - Island of the Color Blind Macular Degeneration Problem Effect - Effect 2 Amsler Test Retinitis Pigmentosa Problem Effect Diabetic Retinopathy Cataract Your Textbook: 36-41
		Brightness Constancy & Contrast Example of Simultaneous Brightness Contrast McCourt Effect Benussi Rings 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 Stabilized Retinal Image Fading Dot Your Textbook: 46-54
6/4	M	Color Newton's Separation Experiment Newton's Mixing Experiment Dimensions of Color Issue of Source of Illuminance Creating colors from other colors Additive Color Demo Creating colors using subtraction Subtractive Color Demo The Munsell System of Color Notation CIE XYZ Color System Nonspectral Colors! Pantone Matching System colors Your Textbook: 142-145
		Mechanisms of Color Helmholtz's Color Mixing Experiments Young-Helmholtz Trichromatic Theory Maxwell's Additive Color Mixing System Spectral Sensitivity of Photoreceptors (2) Ewald Hering Return to the Color Circle Colored Afterimages Color Afterimages 2 Another Look at the Retina Opponent Process Circuit CIE L*A*B color system New Explanation of Evolution of Color Vision in Mammals The Mantis Shrimp - 8 Photopigments! Your Textbook: 145-150, 153-155
6/5	T	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: 151-152
6/6	W	Color Contrast & Color Constancy Simultaneous Color Contrast #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 Return to the Color Circle (Complementary Colors) Another Look at the Retina Color Constancy Return to Issue of Source of Illuminance Edwin Land - Mondrian Experiments Purves Lab @ Duke Purves Cube Chromatic Illuminance vs. Reflectance Return to issue of Scaling and Lightness
		Finding Edges vs. Filling In Return to Diagram of Eye Stabilized Retinal Image Return to Simultaneous Brightness Contrast Return to Hermann Grid Illusion Return to Simultaneous Color Contrast Fading Dot Illusion Fading Dot Color AfterEffect Illusion Kaniza Figure Spreading Neon Illusion Subjective Colors Benham's Top MacKay Star Color Vision Issues & Painting Topic 1 - Paint & Color (a) Tempera vs. Oil 1 2 3 Topic 2 - Color Interactions (a) Color Enhancement 1 Michelangelo (b) Color & Light Monet Topic 3 - Luminance and Equiluminance (a) Equiluminance Anuszkiewicz Monet (b) Luminance Differences Michelangelo DaVinci Topic 4 - Foveal vs. Peripheral Vision Poussin Impressionists
6/7	R	Question & Answer/Review [ Study Guide ] Test 2 Test 2 Results
VISION II
6/11	M	Space, Distance, & Depth - Binocular Cues Corresponding Retinal Points Vieth-Muller Circle Noncorresponding Retinal Points The Horopter and Retinal Disparity The Horopter and Retinal Disparity 2 Retinal Disparity The Horopter and Panum's Area Your Textbook: 173-175
		Manipulation of Binocular Cues to Produce Depth Effects Producing Retinal Disparity Reproducing Viewpoints with Binocular Stereograms Nintendo VirtualBoy Anaglyphs Effect of Looking at an Anaglyph through a Red Filter How the Anaglyph Produces its Depth Effects Example Anaglyphs (red/cyan glasses required) Airplane Anaglyphs: P38 T33 T33 Floatplane Dogfight Bela Julez and the Random Dot Stereogram Fooling Fusion - Single Image Stereograms How a SIS works
6/12	T	Space, Distance, & Depth - Monocular Cues Monocular Cues Linear Perspective Aerial Perspective Example Another Aerial Perspective Example Static Shadow Cue to Depth Impossible trident More Monocular Depth Illusions Another Depth Illusion - The Balcony Drawings of M. C. Escher Ames Room (2 Mb QT Movie) Ames Room Diagram Richard Wiseman does a Card Trick 3-D Pavement Art Illusions Moon Illusion Your Textbook: 169-172
		Form The Gestalt Psychologists Ambiguous Figure 1 [Rubin (1915) and an interesting variant] Ambiguous Figure 2 [Jastrow (1899) and a NC variant] Ambiguous Figure 3 (Necker, 1832) 4 Laws of Grouping Grouping by Common Fate Gabor - Similarity Glass Patterns - Proximity Breathing Square - Importance of Local Cues The Problem of Prediction: 1 2 Kaniza Triangle 1 Kaniza Triangle 2 Stroboscopic Motion: Phi and MagnaPhi Stroboscopic Motion: Wagon wheel Illusion 1 Stroboscopic Motion: Wagon wheel Illusion 2 Motion-induced Blindness Object Recognition - Structural Approach Object Recognition - View-point / Image Approach Greeble - Greeble Identification - Greeble is a Verb! 1 2 Thatcher Illusion - the USA Version Change Blindness - Airplane Change Blindness - Chopper Change Blindness - Dinner Plate Change Blindness - Money Change Blindness - Merry Go Round Change Blindness - Frogs Change Blindness - Workroom Change Blindness - Bistro Change Blindness - Card Color Trick Classic Form Illusions Your Textbook: 93-103
6/13	W	Perception of Movement Corollary Discharge Theory A 2nd point about Afterimages Autokinetic Effect Drift-Induced Motion Your Textbook: 201-202
		Stroboscopic Motion: Phi and MagnaPhi Stroboscopic Motion: Wagon wheel Illusion 1 Stroboscopic Motion: Wagon wheel Illusion 2
		Motion Parallax Simple Motion Parallax Diagram Motion Parallax Diagram with Horopter Optic Flow Motion Aftereffect Standard Induced Motion Example Shadow Cues and Motion Structure from Motion 1 (Accretion & Deletion) Structure from Motion - The Aperture Issue (aka Barber Pole Illusion) Structure from Motion 2 (Local vs. Global Occlusion) Structure from Motion 3 (Kinetic Depth Effect) Structure from Motion 4 (Biological Motion) Structure from Motion 4b (Biological Motion) Depth from Motion 1 Depth from Motion 2 Living in a Reversed World - Erismann & Kohler, narrated by JJ Gibson Your Textbook: 215-223
6/14	R	Question & Answer/Review [ Study Guide ] Test 3 Test 3 Results
AUDITION: Parallels and Differences
6/18	M	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 (Large) Frequency Amplitude Common Amplitudes Phase Interference Complex waves Even more complex waves A general problem for the hearing system (dB Racing Article ) (or Listen to a recent dB story on This American Life) Your Textbook: 234-240
		Auditory Physiology 1000 Hz tone The Ear Middle Ear Inner Ear ATC Story about Mosquito Tone 17Khz Tone Your Textbook: 241-244
6/19	T	Auditory Physiology & Pitch Von Bekesy Von Bekesy's Mechanical Model Von Bekesy's Results A Traveling Wave Basilar Membrane Animation Presbycusis Otoacoustic Emissions Cochlear Implant Description of Cochlear Implant in operation Your Textbook: 245-252
		Psychophysics of Pitch and Loudness Audibility Function Equal Loudness Contour (Sound Demo) Frequency to Pitch function Amplitude-Frequency Shift (Equal Pitch Contours) Speech Frequencies Doppler Effect Neuhoff-McBeath Doppler Illusion Your Textbook: 236-239
6/20	W	Sound Localization The General Problem Directions terminology Basic situation Interaural Intensity Difference Interaural Time Difference Cone of Confusion Head Related Transfer Function (HRTF) Hearing and Not Hearing Echos (Reverberation Time Demo) Your Textbook: 266-273
		Auditory Scene Analysis The General Problem Principles of Auditory Grouping: Location Pitch Similarity Proximity in Time Timbre Similarity - Wessel Effect Good Continuation Repetition Your textbook: 274-278
		Interactions Between Hearing & Seeing Visual Capture The Pseudophone: Hearing vs. Seeing The McGurk Effect Why the McGurk Effect Occurs George & Tony Sound Influences Seeing: Balls In Motion (Sekuler et al., 1997) Your textbook: 281
6/21	R	Question & Answer/Review [ Study Guide ] Test 4 Test 5 - optional