1. Studying the Brain
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2. Ways to Study the Brain
Recording
Stimulation
Lesioning
Imaging

3. Recording
Electrodes – wires put into the brain that record electrical activity in the brain
EEG (electroencephalograph) – machine that records electrical activity of a whole area of the brain
Brain waves – the electrical rhythm of the brain

4. Stimulation
Sending an electrical signal to part of the brain to make it work
Wilder Penfield – surgeon that stimulated his patients brains during surgery, found out what different parts of the brain can do
Used to treat pain

5. Lesions
Cutting or destroying part of the brain (animals)

6. Images PET scans (positron emission topography)
CAT scans (computerized axial tomography)
MRI scans (magnetic resonance imaging)

7. PET Scan
show activity in the brain through pictures after a person is given a radioactive shot

8. CAT Scan
moving ring passes X-ray beams through the head, sending radiation to different parts of the brain and computer create a picture

9. MRI
can study structure and activity in the brain, combines features of PET & CAT scans. Send radio frequencies into the brain, a computer reads it and makes a picture

10. Accidents
When someone is hurt, scientists can study their brain and changes in abilities functions to learn more about the brain.

11. Broca’s Area
Dr. Paul Broca – discovered what is now called Broca’s Area which is the area of the brain used for speech