PSY 260 Lecture 3: PSY260 Chapter 3 Notes
22 Mar 2017
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Information processing: transforming low-level sensory representations into higher-level representations capable of mediating cognitive behavior. The apple isn"t red you perceive the apple as red; (cid:498)red(cid:499) is a percept, it exists only in your brain! You construct the apple percept; perception of the apple is not physical reality i. e. (cid:498)what color is an apple? (cid:499) transduced by the sensory systems. Top-down processing: perceptions are assembled from pre-existing knowledge of expectations or memories and are less directly tied to the stimulus: this is how your perceptual system built the dalmatian; If you didn"t have prior knowledge of what a dalmatian looked like, you would never have perceived a dog because there was no dog in the physical stimulus. Top-down theories: template theory, feature analysis theory, recognition-by-components (rbc) theory, (elmholtz"s theory of unconscious )nference, gestalt theory i. e. - alphabet = 26 letters = 26 sets of patterns, template theory.
