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Unformatted text preview: PSYC 213 Jan 31 st and Feb 2 nd , 2011 Conference #2 Perception and The Varieties of Attention Chapter #3: 1) Fill in the blanks in the chart below: Theory Description Top Down or Bottom Up Processing? Pros Cons Ecological optics The proposal that perception involves directly absorbing the visual information present in the environment. Bottom up Vital in pulling attention away from the simplified, reductionist stimuli of his time and to the dynamic, meaning- laden environment of the real world Not very useful for understanding illusion of clarity, time spaces, and other imagery-based or top down phenomena. Template Matching Theory The theory that a stimulus is compared with templates in order to determine if they match, and when they do match, the stimulus is recognized as belonging to a category. Bottom up Superficially plausible; forms a basis for more elaborate template matching theories Difficult process to spell out in detail, or how a template can match not only patterns that are identical to it, but also patterns that are similar enough to it Multiple Trace Memory Model Traces of each individual experience are recorded in memory. No matter how often a particular kind of event is experienced, a memory trace of the event is recorded each time. Bottom up May not have the brain power or capacity to store all these templates (from lecture in ref. to PSYC 213 Jan 31 st and Feb 2 nd , 2011 recognition by views) Feature Detection Theory/ Pandemonium Detecting patterns on the basis of their individual features. Model of pattern recognition consisting of 3 levels: Data, Cognitive demons and Decision demons. Bottom up Forms the basis of more elaborate feature detection models; easy to implement in computer vision Recognition by components (RBC) A model of perception based on subdividing objects into a basic set of geometric shapes....
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This note was uploaded on 02/16/2011 for the course PSYC 213 taught by Professor Levitin during the Winter '08 term at McGill.
- Winter '08