full transcript
From the Ted Talk by Elizabeth Cox: What causes hallucinations?
Unscramble the Blue Letters
When the visual cortex is depivred of input from the eyes, even temporarily, the brain still tries to create a coherent picture, but the limits of its aibitleis become a lot more obvious. The full-blown hallucinations of Charles Bonnet Syndrome are one example. Because craelhs Bonnet sdnmyore only occurs in people who had normal vision and then lost their sight, not those who were born blind, scientists think the brain uses remembered images to compensate for the lack of new visual iunpt. And the same is true for other senses. People with hearing loss often hallucinate music or voices, sometimes as elaborate as the cacophony of an etnire mirhcnag band.
Open Cloze
When the visual cortex is ________ of input from the eyes, even temporarily, the brain still tries to create a coherent picture, but the limits of its _________ become a lot more obvious. The full-blown hallucinations of Charles Bonnet Syndrome are one example. Because _______ Bonnet ________ only occurs in people who had normal vision and then lost their sight, not those who were born blind, scientists think the brain uses remembered images to compensate for the lack of new visual _____. And the same is true for other senses. People with hearing loss often hallucinate music or voices, sometimes as elaborate as the cacophony of an ______ ________ band.
Solution
- marching
- input
- abilities
- deprived
- syndrome
- charles
- entire
Original Text
When the visual cortex is deprived of input from the eyes, even temporarily, the brain still tries to create a coherent picture, but the limits of its abilities become a lot more obvious. The full-blown hallucinations of Charles Bonnet Syndrome are one example. Because Charles Bonnet Syndrome only occurs in people who had normal vision and then lost their sight, not those who were born blind, scientists think the brain uses remembered images to compensate for the lack of new visual input. And the same is true for other senses. People with hearing loss often hallucinate music or voices, sometimes as elaborate as the cacophony of an entire marching band.
Frequently Occurring Word Combinations
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charles bonnet |
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bonnet syndrome |
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brain areas |
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cerebral cortex |
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blind spots |
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visual cortex |
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hearing loss |
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charles bonnet syndrome |
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Important Words
- abilities
- band
- blind
- bonnet
- born
- brain
- cacophony
- charles
- coherent
- compensate
- cortex
- create
- deprived
- elaborate
- entire
- eyes
- hallucinate
- hallucinations
- hearing
- images
- input
- lack
- limits
- loss
- lost
- lot
- marching
- music
- normal
- obvious
- occurs
- people
- picture
- remembered
- scientists
- senses
- sight
- syndrome
- temporarily
- true
- vision
- visual
- voices