Language deficits and traumatic brain injury
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- Language deficits and traumatic brain injury
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Language deficits and traumatic brain injury
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[ID] => 559066
[post_author] => 12815
[post_date] => 2024-12-26 11:06:59
[post_date_gmt] => 2024-12-26 16:06:59
[post_content] => Practice Passage (Question 1-5)
*This passage is the property of Khan Academy and has been reformatted into an AAMC-style interface in their entirety by MedLife Mastery. MedLife Mastery does not endorse and is not an affiliate of Khan Academy.
Language is the communication system of the human race, and the primary organ of this system is the brain. Much of what scientists know about language processing is based on studies of individuals who have difficulty with speech following brain damage. These individuals exhibit different and specific language deficits, depending on the area of the brain that has experienced trauma; some patients struggle with reading, others have trouble with speech comprehension. This is because there are specific structures in the brain that control and integrate different aspects of language. Based on the location and depth of injuries, physicians seek to diagnose language disorders and anticipate the specific needs of their patients.
One clinic that specializes in the treatment of traumatic brain injury provides a special program for patients who are learning to manage their language disorders. The program groups patients together based on their diagnosis and assigns them to speech-language pathologists who work with them on an individual and group basis to recover specific speech functions. Table 1 outlines the percent of patients in the clinic who have been diagnosed with each disorder.
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[question] => Patient K is unable to name items presented to her, even though she is able to pick them up and use them correctly. What disorder does Patient K most likely have?
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[answer] => 2
[description] => Reason for the Correct Answer:
Broca’s aphasia involves damage to the language production center of the brain.
Agraphia is the inability to write.
Anomia is the inability to name objects.
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[answers] => Array
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[each_answer] => A. Broca’s aphasia
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[each_answer] => B. Anomia
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[each_answer] => C. Agraphia
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[each_answer] => D. Wernicke’s aphasia
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[1] => Array
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[quiz_unique_key] => 3873426850
[question] => Patient J was originally diagnosed with global aphasia. After he has been in the clinic a few weeks, however, the staff notices that his speech is becoming more fluent, even though the words he puts together don’t make sense. What is Patient J’s disorder most likely to be reclassified as?
[value] => Array
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[answer] => 3
[description] => Reason for the Correct Answer:
There was no information about the patient’s ability to name objects, so it is unlikely to be anomia.
Broca’s aphasia involves damage to the language production center of the brain.
People with Wernicke’s aphasia produce fluent, but nonsensical, speech.
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[0] => Array
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[each_answer] => A. Broca’s aphasia
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[each_answer] => B. Anomia
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[each_answer] => C. Wernicke’s aphasia
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[each_answer] => D. Conduction aphasia
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[quiz_unique_key] => 2261298308
[question] => Based on the table above, what problem do most of the patients have?
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[answer] => 3
[description] => Reason for the Correct Answer:
People with Broca’s aphasia are still capable of understanding language.
Broca’s aphasia involves damage to the language production center of the brain.
The greatest percentage of patients have Broca’s aphasia, meaning they produce only halting, broken speech.
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[each_answer] => A. Inability to understand others
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[each_answer] => B. Inability to write
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[each_answer] => C. Halting speech
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[each_answer] => D. Inability to label objects
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[quiz_unique_key] => 2377279144
[question] => Patient J was originally diagnosed with global aphasia. After he has been in the clinic a few weeks, however, the staff notices that his speech is becoming more fluent, even though the words he puts together don’t make sense. What property of the human brain is most likely to be responsible for Patient J’s recovery of fluency?
[value] => Array
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[answer] => 1
[description] => Reason for the Correct Answer:
It is unlikely that neurons are spontaneously regenerating.
When one part of the brain is damaged, some functions are transferred to other parts of the brain.
Neural plasticity means that some parts of the brain can adapt to perform new functions if needed.
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[answers] => Array
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[0] => Array
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[each_answer] => A. Neural plasticity
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[each_answer] => B. Neural accessibility
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[each_answer] => C. Neural potentiation
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[each_answer] => D. Neural regeneration
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[quiz_unique_key] => 83407773
[question] => Patient K is unable to name items presented to her, even though she is able to pick them up and use them correctly. Someone at the clinic notices that Patient K is actually able to name objects, but only when they are presented in her right field of vision. Patient K will most likely be re-classified as what type of patient?
[value] => Array
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[answer] => 3
[description] => Reason for the Correct Answer:
Objects in the right field of vision get sent to the left hemisphere.
Language skills, such as naming objects, tend to be centered in the brain’s left hemisphere.
Split-brain patients no longer have the ability to communicate between hemispheres, so objects processed in the right hemisphere may not be able to connect with the object label, which is in the left hemisphere.
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[each_answer] => A. Anomic
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[each_answer] => B. Hemispheric
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[each_answer] => C. Split-brain
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[each_answer] => D. Neurally plastic
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