Where is Broca’s area located? (As much detail as possible)
Posterior-inferior portion of the frontal lobe in the left hemisphere (for most ppl)
Where is Wernicke’s area located?
Posterior-superior portion of the temporal lobe in the left hemisphere (for most ppl)
What is the structure that connects Broca’s area and Wernicke’s area?
Arcuate fasiculus
What structure of the brain is responsible for understanding and relaying WRITTEn language to other areas of the brain?
Angular gyrus
Lesion site of Transcortical Aphasia (Sensory)
Around Wernicke’s area (does not include it)
Lesion site of Transcortical Aphasia (Motor)
Around Broca’s area (does not include it)
Lesion site of Mixed Transcortical Aphasia
In/around Broca’s, in/around Wernicke’s and around the Arcuate Fasiculus
Where is the lesion site for anomic aphasia?
Angular gyrus
(Posterior-inferior region of parietal lobe; Brodman 39)
Clinical profile of conduction aphasia
T/F: Paraphasias are often found in Broca’s aphasia
False - uncommon
Transcortical SENSORY Aphasia
**Similar to Wernicke’s but able to repeat
Transcortical MOTOR Aphasia
**Similar to Broca’s but able to repeat
Transcortical MIXED Aphasia
**Similar to Global Aphasia but good repetition
Clinical profile of Nonfluent (Broca’s) Aphasia
Fluent (Wernicke’s) Aphasia - clinical profile
T/F: Agraphia and alexia present in all types of aphasia
Somewhat true – CAN be found in all types
Between Ischemic and Hemorrhagic strokes, which is more common?
Ischemic
What is a TIA?
Trasient Ischemic Attack
Self-resolves in 24 hours
Minimal long-term damage
Atherosclerosis
Build up of fat, cholesterol, proteins, calcium and immune cells form a plaque and start to obstruct arterial blood flow
Embolism
Part of a blood clot from somewhere else breaks off and travels to get caught in a thinner vessel.
Typically emerge from atherosclerosis but can come from the heart as well (after heart attack for example)
What does CVA stand for?
Cerebrovascular Accident (stroke)
What is a hemorrhagic stroke?
Bleeding in the brain due to ruptured blood vessels
What % of those who survive a stroke have aphasia?
About 50%
Causes of aphasia that are not strokes
Brain trauma
Tumors
Infections