PSY270H5 Lecture 3:
Document Summary
Template theory: comparison of perceived representation and memory representation. Feature analysis theory: fixed set of elementary properties analyzed independently in parallel across visual field. Challenges with template theory: massive number of templates are necessary, predicts no transfer to novel views of the same objects, objects are often obstructed. They often have preference for stimuli moving in certain directions: hypercomplex cells: fire maximally to more complicated sets of specific features. If an image is kept completely still on the retina, it will slowly fade from view: caused by individual feature detectors become habituated or fatigued with prolonged firing. Principles of perceptual biases: helmholtz"s theory of unconscious inference. Our perception is biased by unconscious assumption about what is likely happening (likelihood principle) Thatcher effect: higher sensitivity to process upright face than inverted face. Fusiform face area (ffa: damage to ffa causes prosopagnosia. Inattentional blindness: failure to recognize and memorize information due to lack of attention.
