PSYC 3260 Lecture Notes - Lecture 4: Hermann Von Helmholtz, Fusiform Face Area, Olympic Symbols
12 Jul 2017
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Document Summary
Perception: experiences resulting from stimulation of the senses. Perception involves all of the senses: majority of work and discussion is on visual though. Bottom-up processing (direct perception): perception is formed by environmental stimuli, the whole is formed by the sum of its parts. Top-down processing (constructive perception): active construction of perceptions using prior knowledge, experiences and expectations. Bottom-up is more common when were young and as we age we use top-down more and more. Auditory: hearing sentences a different language, speech segmentation (top-down processing) Touch/pain: placebo effect, signal intensity does not equal pain perception. Concepts of objects perception: unconscious inference, gestalt laws: good continuation, pragnanz, similarity, environmental regularities, bayesian inference, unconscious inference. Our perceptions are the result of unconscious assumptions we make about the environment. We use our prior knowledge to inform" our perceptions. Good continuation: overlapping/discontinuous lines are perceives as following the smoothest path.
