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040509 - Sensation and Perception I

040509 - Sensation and Perception I - Sensation and...

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Sensation and Perception Our link to the world Psychology 1101 Lecture – Dave Van Valkenburg 04/05/09 - Feeling that we experience it directly - Some information getting through to your brain - Information not put together Sensation - The conversion of the signals around us into neural signals o Electromagnetic radiation o Sound waves o How do we get these physical things from out there in the environment to sensory impulses Sensory processes - Those processes that occur when a signal is converted. These are different for vision, audition, olfaction and *** Sensation: - *** *** - Detect how bright the objects are at each point Perceiving is believing: - Since our senses are our only means of contact with the external world we usually believe what they tell us Illusion: - *** Sometimes, multiple percepts are possible. When two or more are equally likely, the percept can change over time. Can also get geometrical distortions: Where straight lines appear curved.
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