Lec21S%26Pcont09A

Lec21S%26Pcont09A - Lecture 21(4/16/09): The eye &...

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Assignment 2 instructions will be posted by end of the week There are only a few weeks left to complete your research credits Exam 3 is Saturday , 9 AM May 9, 2009
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We are trapped in our bodies with a two word vocabulary for making sense of the world Transducer cells Low thresholds sensory specific pathways: Sensation asks and answers the questions: Is anything there? If so, what? And how big is it? This time: does the rule for sensory magnitude apply to evaluation of magnitude of nonsensory experiences, such as how valuable is money? Color vision Intro to perception
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Back to psychophysics: Sensory magnitude estimation Independent variable: variation in a physical dimension weight, light intensity, sound pressure, electric current, etc Dependent variable: judgments of intensity, using an “arbitrary” numeric scale.
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For example, degree of pain = constant (K) x Volts raised to a power ( P) The type of equation that fits each of these curves is the same: Magnitue of Psych Sensation = K(magnitude of sensory event) P
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Satisfaction and Money Increase in Dollars 0$ 200$ 400$ 600$ Increase in Satisfaction 0 2 4 6 8 10 Increase in Satisfaction = 0.48 x Dollars to the 0.44 power Psych 110, Spring 2009 Satisfaction = . 48 ($) . 44 Might the same type of equation fit the relationship between satisfaction and money?
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Satisfaction as Function of Dollars Dollars 0$ 100$ 200$ 300$ 400$ 500$ 600$ Satisfaction 1 2 3 4 5 6 7 8 9 Psych 110, Fall, Sat. = K x (dollars) 0.46 Satisfaction and Money Increase in Dollars 0$ 200$ 400$ 600$ Increase in Satisfaction 0 2 4 6 8 10 Increase in Satisfaction = 0.48 x Dollars to the 0.44 power Psych 110, Spring 2009 Psych 110, Spring,, Sat. = K x (dollars) 0.44 Psych 110, Fall 08
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Lec21S%26Pcont09A - Lecture 21(4/16/09): The eye &...

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