PSYC-275 Lecture 6: Broken Brains PSYCH 275
20 Jun 2018
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Into the Mind: Broken Brains
What were the symptoms of Broca’s patient named Leborgne? What was the significance of this case in
regards to our understanding of how the brain functions?
Symptoms- lost power of speech except for 'tahn'; thought to be syphilis; could still understand
language
1.
Understanding- damaged area responsible for speech; localization(brain areas responsible for different
things)
2.
1.
What is the reasoning underlying surgical intervention to relieve epileptic seizures?
That is the region where the malfunctioning starts, so removing it removes the problem.
1.
2.
What brain region was thought to be the source of Henry Molaison’s epilepsy? What was the result
(behavioral/cognitive symptoms) of the surgical intervention in this case?
Region- hippocampus and surrounding area
1.
Symptoms- couldn't form new memories; only remembered up to surgery
2.
3.
What does the “mirror drawing” test measure?
Remembering physical skills is stored in a different part of the brain unconciously
1.
4.
What is the purpose of the experiments conducted on Henry’s brain at the “Brain Observatory”?
Complete picture of how the memory works down to the neuron
1.
5.
Why is Henry’s case considered to be revolutionary?
Showed how memory works and different kinds of memory
1.
6.
What is the function of the corpus callosum?
55 mil nerve vibers that keep the two brain hemispheres in contact
1.
7.
What is callosotomy? What did Sperry’s experiments with the individuals who had undergone this
procedure reveal? How did he test this?
Callosotomy- severing of the corpus collosum to cure epilepsy
1.
Experiments-
2.
8.
Broken Brains
Thursday, February 8, 2018
9:32 AM
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Document Summary
Symptoms- lost power of speech except for "tahn"; thought to be syphilis; could still understand language. Understanding- damaged area responsible for speech; localization(brain areas responsible for different things) Symptoms- couldn"t form new memories; only remembered up to surgery. Complete picture of how the memory works down to the neuron. Showed how memory works and different kinds of memory. 55 mil nerve vibers that keep the two brain hemispheres in contact. Callosotomy- severing of the corpus collosum to cure epilepsy. What was the significance of this case in lost power of speech except for "tahn"; thought to be syphilis; could still understand damaged area responsible for speech; localization(brain areas responsible for different. That is the region where the malfunctioning starts, so removing it removes the problem. What was the result (behavioral/cognitive symptoms) of the surgical intervention in this case? couldn"t form new memories; only remembered up to surgery. Remembering physical skills is stored in a different part of the brain unconciously.
