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This lecture delves into the fascinating world of visual perception, covering topics such as object recognition, contours, illusions, symmetry, and more. Understand the mechanisms behind how we perceive and interpret visual stimuli, from simple shapes to complex illusions.
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Advances in Visual Perception PSYC 526 Fall Profs. Fred Kingdom & Kathy Mullen
Lecture 3 “Seeing Objects” Readings Goldstein, 5th ed: Ch. 7; 6th, 7th ed: Ch. 5. Bruce et al., "Visual Object Recognition" Ch. 9 in Visual Perception. Hove: UK. (1996), WebCT. Tovee "Object perception and recognition" Ch 8 in An Introduction to the Visual System, Cambridge University Press (1996), WebCT.
‘Two-tone’ image High-pass filtered
‘Two-tone’ image High-pass filtered
Effects of bandpass filtering Unfiltered Lowpass filtered Highpass filtered
‘Blocked’ image
Straightish path Curvy path Field, Hayes & Hess (1993)
Common fate Courtesy of Tony Movshon, New York University
“Prior knowledge and/or top-down processing ?” Gestalt law of good continuation The motion after-effect The ‘light-comes-from-above’ assumption Colours of the rainbow Orientation-selective neurons in the cortex Illusory contours, as in the Kanizsa triangle Mirror-symmetry ‘pops-out’ Insensitivity of cortical neurons to uniform illumination 9. Common fate