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Survey of the incoming Princeton Class of 2014
• Topics:– Your attitudes about science– Tests of your brain functions– Brain trivia
• 1131 responses (87% of 1300 incoming freshmen)
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Brain basics
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We are making use of only a small part of our possible mental and physical resources. William James, 1908You only use ten percent of your brain.
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The human brain
• Size: 1.2 kg (total body weight 70 kg)• Power usage: 15 watts
(total usage 70 watts)
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Your brain uses about as much energy as:
a) A car moving down a freeway
b) An idling car
c) Ten laptop computers
d) One idling laptop computer
120,000 watts 22%
60,000 watts 12%
400 watts 43%
15 watts 23%
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Your brain lies to you!
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Cornel WestClass of 1943 University Professor
in the Center for African American Studies
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Example of synesthesia:
letters and digits are automatically seen in color
What is synesthesia?
Can’t be learned, can’t be practiced.
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15 saw the triangle 1 out of 703 saw all three effects (definite synesthetes) 1 out of 400Color-grapheme synesthetes in the general population: 1 out of 200
But 90 of you claimed to be synesthetes…1 out of 12!
Crosstalk between color and grapheme perception?
“When I look at raw meat, my mouth waters and I want to eat and taste a big steak right then and there.”
Not all associations are synesthesia.
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A practical brain tip
87%
6%
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Freshmen with an autism spectrum disorder sibling
• 32 reported having one• 32/1131 = 1 out of 35…• …but the reported incidence in the US population is only 1 in 170.
What’s going on??
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SW
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Is autism triggered by abnormal perceptual processing in early life?
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Adolescence
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NEU101: Neuroscience and Everyday Life (ST, Spring 2011)
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Illustrator Lisa Haney
Prof. Cornel West
NEU101:Prof. Alan Gelperin Sean Baron *07Alexander Kloth *08
Sam Wang’s labToo many to list! seesynapse.princeton.edu
David HopkinsLance Herrington
Edward FreelandNaila Rahman