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The Lost Mariner. Korsakov's SyndromeAnterograde amnesia = events are forgotten almost as soon as they happenStarted drinking heavily when he left the navy in 1965, which cause some parts of his brain to degenerateRetrograde amnesia = can only remember events prior to 1945What part of the brain
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1. Whats wrong with my patient? Created for SPICE by Catherine Marcinkiewcz and Sean Sand
2. The Lost Mariner Korsakovs Syndrome
Anterograde amnesia = events are forgotten almost as soon as they happen
Started drinking heavily when he left the navy in 1965, which cause some parts of his brain to degenerate
Retrograde amnesia = can only remember events prior to 1945
What part of the brain did the alcohol destroy?
3. Dr. P is unable to distinguish objects, despite the fact that his eyes are perfectly normal
Visual perception is lost visual agnosia
Suspected tumor or degenerative process in the brain
Which part?
Frontal, temporal, parietal, or occipital lobe? The Man Who Mistook his Wife for a Hat
4. Phantom Limbs A man loses his arm in a car accident, but feels as though the limb is still present
The doctor tries to figure out why this happens
When touches the mans face with a Q-tip, the man feels sensations in his phantom limb
What is happening?
Does this case provide evidence for plasticity in the brain?
5. The Unbearable Likeness of Being A 30-year old man gets into a car accident and hits his head against a windshield
Coma for 3 weeks
Capgras syndrome
Thinks his parents are imposters, even though he admits that they look exactly like them
Whats wrong with him?
Face centers of temporal lobe allow us to recognize faces
These centers are intimately connected with emotional centers of the brain (aka limbic system)
If these connections are destroyed or interrupted, faces may be recognized but have no emotional significance
This results in familiar people being perceived as imposters
6. The Man Who Fell Out of Bed Man believes his left leg is a counterfeit
Some paralysis on left side
Severe body scheme distortion
What part of the brain is affected?
Frontal, parietal, temporal or occipital lobe?
Left or right side?