Psychology 2135A/B Lecture Notes - Artificial Neural Network, Prosopagnosia, Retina
30 Jul 2013
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Document Summary
Artificial neural networks in the real world. Finger print recognition, cgi characters in movies (more realistic behaviours), decision making for a loan, cancer detection. The world does not passively impose itself on our mind; rather it has to be actively interpreted. Gateway to cognition- the basic processes of cognitive system is to register perceptions. Influenced by both bottom-up processes (qualities of the stimuli) and top-down processes (knowledge/beliefs) The world is full of ambiguity that the perceptual system must resolve (our sensory receptions seem inadequate to do the things that they do, we aren"t aware of these ambiguities). Recognizing the same object even though the image is different. Reconstructing a 3d image from the 2d image produced on the retina. Separating objects from one another and from background. Unlimited set of objects can produce the same 2d image. Perceptual system used heuristics to resolve ambiguity. Bias resulting from the use of heuristics due to computational complexity (difficulty of the task)
