2. Methods of Studying the Brain
• Accidents
• Electrical Stimulation of the Brain
• Electroencephalogram
• Brain Scans (neuroimaging)
3. Accidents
• Brain damage from head injuries can
result in loss of vision and hearing,
confusion, or loss of memory.
• In some cases, loss of large portions of the
brain may result in relatively little loss of
function.
• Where the damage is can have more of an
effect than the amount of damage.
4. Electrical Stimulation of the Brain
• …has shown that specific areas are
associated with specific types of
sensations
• Electrodes are sometimes implanted.
• Stimulation is not always reliable.
• Stimulation in the same place can
produce different effects at different
times.
5. Electroencephalogram
• …device that records the electrical activity
of the brain.
• Electrodes are attached to the scalp detect
small amounts of electrical activity called
brain waves.
• Certain brain wave patterns are associated
with feelings of relaxation and with sleep.
6. Brain Scans (neuroimaging)
• …computers generate images from
various sources of information
• Provides info about brain damage
• Early diagnoses of cancer
• Aids surgeons during difficult and
intricate surgery
