Psychology Lecture Oct 3

Psychology Lecture Oct 3 - D.2 Opponent-Process Theory...

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D.2 Opponent-Process Theory - attempts to explain how we perceive color - Herring accepted accepts of other theory but it doesn't explain everything. Many phenomenons that it misses - other theory it doesn't explain afterimages: video image that perceives even though the visual stimulation is done Stare at: Afterimage : Green Red Red Green - 4 primary light colors red green blue and yellow - You can mix those colors so that you can create any color - 3 antagonistic color system Red/Green Blue/Yellow Black/White - Neurons will respond in opposing ways to light waves of different lengths - Ex. Red green system. Neurons will respond in opposing ways to the red light and green light. If excited by red light they will be inhibited by the green. The opposite will also happen. It will never be excited by both Lights. Excited is more likely to fire. Inhibited less likely - Brain observes neurons. Looks at patterns and determines what color we see. - Ex. R+ plus b+ = purple D.3 bottom line (to date) Both theories Tri. -> cones (retina) OPP.process -> ganglion cells (retina) + neurons in the brain (ex. Thalamus) iii. Hearing (audition) A. The stimulus - Sound wave - 3 characteristics: Physical Psychological Frequency (Hz) length of wave. Distance between two peeks Pitch (high/low) Not volume Amplitude (Dd) Loudness Complexity Timbre (what makes your voice unique)
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This note was uploaded on 11/16/2011 for the course PSY 1101 taught by Professor Textbook during the Fall '08 term at University of Ottawa.

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Psychology Lecture Oct 3 - D.2 Opponent-Process Theory...

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