Psych 102 �1

Psych 102 �1 - Psych102Week1 19:27 Overview o...

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Psych 102 – Week 1 19:27 March 31 Tuesday -LECTURE 1-  Overview Introductory Illusions o MC Escher and Roger Shepard What does it all mean? o Dualist view o Democritus’ view o Plato and Socrates Psychophysics Introductory Illusions Optical illusion with connected stairs that seem to be ascending but  descending at the same time. Shepard’s Tones : Tones without relative pitch information Endless loop that seems to ascend or descend depending on the sequence Display case for Illusions o Even reduced to a simpler form, it takes work to see that the form in  “Belvedere” is impossible Waterfall Illusion Escher Videos What does it all mean?
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                           Two “Realities” Psychological                 Physical If some  of what we perceive is an “illusion”, then what part isn’t  an illusion? “By convention, sweet is sweet, by convention bitter is bitter, cold is cold, color  is color. In truth, there are but atoms and the void.” o Meaning: in reality we perceive by convention, but reality is the physical  existence of atoms –Democritus  Motion in Depth Video o Ball rolls, shadow changes perception of the ball Monocular cues to depth perception o Shadow manipulates location of the ball Motion: How fast is the motorcycle going? April 2, Thursday –LECTURE 2- Fechner: invented psychophysics -Lived in Germany -physicist, mathmatician, medicine, metaphysics, religion   true renassaince  scholar -perceptual effect that happened to him got him interested in psychophysics -he was very depressed   very sick and stayed inside for years   perceptual  changes Psychophysics : The Science of defining quantitative relationships between  physical and psychological (subjective) events 
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Ancient philosophies of perception Plator’s allegory of the cave o Prisoners sees shadow and echoes on the wall and above ground is the  world o Can you really trust your senses and the incoming information? o Until you can come into direct contact with an object, how do we know  something’s real? o Cannot trust senses to bring the truth Nativism:  the idea that the mind produces ideas that are not derived from  external sources [plato] There’s ways of processing information that’s not learned, just naturally within  us.  The concept that some ideas MUST be innate All true ideas must come from the mind or soul Information from the senses is not enough to “know” or understand “truth”  (prisons in the cave) Heraclitus  – “you can never step into the same river twice.”
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This note was uploaded on 11/16/2009 for the course PSYC psych 102 taught by Professor David during the Spring '09 term at UCSD.

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Psych 102 �1 - Psych102Week1 19:27 Overview o...

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