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Ischemic CVA
blood flow is occluded at a specific point
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thrombosis
artery gets damed up over time, often near an anastomosis
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anastomosis
divide in an artery
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embolism
clot that travels to a point and lodges
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hemorrhage
too much blood in an area of the brain--arterial or veinous wall that burst and floods the surrounding area with blood.
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hematoma
accumulation of blood
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aneurysm
artery or vein that has "ballooned out"
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hypertension
high blood pressure. over time, can thin out the artery or vein wall and cause hemorrhage
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*aphasia
Acquired impairment of language processes that often underlie receptive and expressive modalities and is always characterized by anomia. aphasia is caused by damage to areas of the brain primarily responsible for language function
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anomia
word finding/retrieval deficit
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shallow centrality
receptive or expressive modalities (how we communicate)
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deep centrality
all modalities (how we communicate)
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omission anomia
patients didn't say something they could say
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commission anomia
patient say something that is a deficit
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fluent speech
average of 9 or more words in a phrasing
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paraphasia
word substitutions, produced unintentionally and by fluent or non fluent speakers
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phonemic paraphasia
(literal) substitution, addition, or rearrangement of speech sounds so that the error sounds similar to the target (pike for pipe)
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verbal paraphasia
pathological breakdown in semantic boundaries between words that are related
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semantic verbal paraphasia
- error bears a semantic relationship to the target
- (wife for husband)
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unrelated verbal paraphasia
- error bears no semantic relationship to the target
- (chair for scissors)
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neologistic paraphasia
- fluently spoken paraphasia, bears no relationship the the patient's native language, usually spoken without recognition of the error
- (planker for comb)
no relationship to the word, they dont know they are saying the wrong word
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empty speech
fluent, lengthy utterances that are primarily non-communicative
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press for speech
a need to talk and go on, and on, and on....
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agrammatisms
word retrieval deficits. words are omitted from the target intended utterance
nonfluent
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content words
carry most of the meaning in a sentence
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functors
words that dont carry much meaning, but help the sentence to make sense
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pseudoagrammatism
usually one word phrase that "sum up" the response.
ex: stroke
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telegraphic speech
- the basic parts of a sentence may be uttered in a simple utterance
- (S V O)
- ex: go Target buy candy
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verbal stereotypic speech
usually involuntary, repeated utterances that may make up the patient's entire vocab
ex: "I know"...
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cognition
the coordinated operation of active mental processes within a multicomponent memory system
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short term memory
immediate memory, about 7 pieces of data in capacity or only a few seconds in term of time
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recent memory
- (long term memory) only lasts for a short period of time (hours to days) and is gone
- ex: what ate for lunch 2 days ago
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remote memory
- things that you dont forget
- ex: how to read, recognize letters, ride a bike, etc
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consolidation
moving info from short term to long term memory
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working memory
center of cognition. fast processor of info, but has a limited capacity
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resource allocation
we all have certain amount of cognition resources available to us to use, when have brain injury, some of the resources are sucked away
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attention
a concentration of mental activity
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divided attention
can separate your attention among things and be successful.
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directed attention
focus attention on one thing, one piece of task. ability to pick out certain things based on need or stimulus--know what is important and insignificant
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shifting attention
ability to move attention from one task to another fluidly
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sustained attention/ vigilance
person can maintain their attention to task long enough to facilitate adequate processing
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controlled processing
- often difficult or complex or unfamiliar tasks that require focused attention
- ex: learning how to drive a car
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automatic processing
simple, familiar, or over-learned tasks. theses require a low level of awareness and attention and can divide the attention among multiple tasks
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resource allocation
considering how much cognitive resources is needed to complete a task
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executive functions
set of cognitive abilities that control and regulate other abilities and behaviors. necessary for goal-directed behavior
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visual field cut
perception example. 2 fields of vision with L and R eyes.
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anosognosia
patient does not have a good awareness of their deficits--not ignoring them.
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topological disorientation
- difficulty disorienting himself to the environment, not memory disorder or general confusion.
- ex: getting around areas
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prosopagnosia
recognition of faces
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reduplicative amnesia
- attributing yourself to somewhre that you are not, without being disoriented and memory deficit.
- ex: patent know he is in the hospital, and knows where he lives-far away, then points out the window across the street to "his house"
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homonymous hemianopsia
visual field cut on one side, typically the left
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anosognosia
not aware of their deficits
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object recognition
visual perceptual problem. patient does not recognize the object for what it is.
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informativeness
- patient may not inform as much as they should or too much
- shows problems in conversations and informing people of what info they need to know
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integration/organization
patients see the detail, but cannot put that detail together in a whole picture
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producing alternatives
understanding alternatives related to reasoning and judgment.
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impaired inferencing
cannot 'read between the lines' and make logical assumptions based on what they see
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dementia
disturbances in the thought process of the individual
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cortical dementia
lesions in the cortex affect and makes changes
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subcortical dementia
lesion is below the level of the cortex
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mixed dementia
can have dementia from multiple strokes (can happen once or over time)
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mutism
not talking, caused by patient decided not to
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open head injury
- the skull is perforated
- typically: less diffuse damage that is confined to a single region of the brain
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closed head injury
skull remains intact. likely present with both primary damage to specific region of the brain and diffuse damage throughout the brain.
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coup
primary damage in the brain
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contra-coup
injury opposite of the primary site, caused by momentum of the injury through the cranium
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coma
condition where the patient displays minimal, if any, purposeful response to external stimuli
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