Welcome To Your BrainWelcome To Your BrainWhy You Lose Your Car Keys but Never Forget How to Drive Why You Lose Your Car Keys but Never Forget How to Drive

and Other Puzzles of Everyday Lifeand Other Puzzles of Everyday Life

Professor Sam WangPrinceton University

Neural diseases are widespread and very important

Brain science?

The human brain

• Size: 1.2 kg (total body weight 70 kg)

• Processing units:1011 neurons, 1015

synapses• Power usage:

12 watts (body total 70 watts)

Picture: D. Purves

Mozart

Structural plasticity in the adult brain

Prof. Elizabeth Gould

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.

How To Spy On Brain Activity

Functional MRIand PET

Two-photon optical microscopy

BOLD

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