PSYCH 1XX3 Lecture Notes - Lecture 7: Agnosia, Cortical Column, Two-Streams Hypothesis
5 May 2015
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Document Summary
Laws that describe how we organize visual input. Innate or are acquired rapidly: six gestalt principles, figure-ground the ability to determine what aspect of a visual scene is part of the object itself and what is part of the background. Common fate the idea that things that change in the same way should be grouped together. Once that is established, the parts of the figure are identified and grouped together into a single object: bottom-up processing the features that are present in the stimulus itself guides object recognition. Recognizing what you see by analyzing the individual features and comparing those features to things with similar features that you have in memory: top-down processing object recognition is guided by your own beliefs or expectations. Example: priming in a priming experiment, the experimenter measures how fast a participant can read a word that is flashed on a screen.
