INHIBITION
Benham's Disk
Cardboard Tube Syllabus
Changing Squares
Cheshire Cat
Color Contrast
Color Reversal
Colorizer
Columns
Delayed Speech
Gray Step I - Horse's Tail
Gray Step II - Rotating
Gray Step III - Mondrian
Gray Step IV - Sliding
Light Edge Photometer
Orange Shadows
Pitch Switch
Rainbow Edges in Your Eye
Selective Hearing
Sophisticated Shadows
Starburst
Subjective Contours
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