SLHS 1150 Lecture Notes - Lecture 17: Aphasia, Expressive Aphasia, Traumatic Brain Injury
31 Mar 2017
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Aphasia and dementia: aphasia, broca"s, wernicke"s, global, anomic, transcortical, etc. Left hemisphere: language, hearing, mathematics, sequences, analytics, right hemisphere, naming things, big picture ideas, heuristics, emotions, the corpus callosum: connects two hemispheres. Vascularization of the brain: uses oxygen via blood, blood from aorta goes to brain via vertebral artery, blood is super important to brain, uses most oxygen at of anything in body. Lot of different blood vessels in brain that are vital. Common causes of aphasia: traumatic brain injury, brain tumor, stroke, cerebrovascular accident (cva) Ischemic stroke: thrombotic episode (blood clot, embolism. Hemorrhagic stroke (not blood clot: concentrated death of cells in specific area due to blood loss or anoxia. How can we describe aphasia: receptive vs. expressive, fluent vs. non-fluent aphasia, fluency: speaking easily and effortlessly. Types of aphasia: non-fluent aphasia, broca"s, transcortical motor, global, fluent aphasia, wernicke"s, transcortical sensory, conduction, anomic.
