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93 Cards in this Set
- Front
- Back
ischemic stroke:
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altherosclerosis and high cholesterol.
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types of ischemia:
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thrombosis, transient ischemic attact (TIA), embolism.
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acute phase:
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hypoperfusion
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chromic phase:
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remote effects & penumbra.
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hemorrhage:
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intracerebral & subarachnoid, hematoma, aneurysm, and AV malformation.
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supportive cells of CNS:
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glial cells: astrocytes & oligodendroglias.
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trauma:
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contusion & laceration, closed/open head injury, language and cognition in TBI.
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progressive etiology:
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unilateral atrophy, aphasia without dementia, progressive aphasia.
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infection:
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bacterial and viral infections in CNS.
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most common bacterial infections:
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bacterial meningitis & brain abscesses.
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viral infections:
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herpes simplex, viral meningitis, syphilis. AIDS, HIV
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dementia in ____ to ____% of AIDS patients in later stages.
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10-30%
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Language characteristics (of aphasia):
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-anomia/circumlocution
-literal/phonemic paraphasias -semantic (verbal) paraphasias -neologisms/jargon -confabulation -telegraphic (agrammatic) language production -speech automatisms -auditory verbal comprehension -repetition deficits -disorders of reading (comprehension impairments, impairments in oral reading) -writing disorders -dysgraphias -gestural disorders |
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co-occuring communication disorders:
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mutism/hypophonia
-dysarthria -acquired stuttering -apraxia of speech |
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behavioral sequelae of brain damage:
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-visual field defect
-unilateral inattention -confusional state -memory problems -amnesia -retrograde muti-infarct -visual agnosias -auditory agnosia -tactile agnosia -apraxias -hallucinations -depression -acalculia -diminished response flexibility |
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task related anomalies:
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impulsiveness, excessive caution, perseveration, deficient self-monitoring, inability to anticipate errors, delayed responses, sequential ordering deficits.
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neurological sequelae:
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-hemiplegia
-pseudobulbar palsy -hemisensory loss -visual field deficit -seizure/epilepsy -disorders of extra ocular movements |
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approaches to aphasia:
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information processing & social/functional
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information processing approach:
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neoclassical localization, cognitive neuropsychology.
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social/functional approach:
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-chronicity
-social approach -environmental approach -life participation approach |
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definition of assessment:
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organized, goal-directed evaluation of the variety of cognitive, linguistic, and pragmatic components of language.
Explores the nature of the language impairment and indicates what aspect of language performance are most appropriate for treatment. |
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aphasia will definitely include ________ impairment, but not always _________ impairment.
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language, cognitive
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psychometric criteria:
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reliability and validity. Informal assessment is rare in information processing approach. Social/functional approach uses both types of tests.
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Assessment process:
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I. Data Collection
Reported observation, Direct observations, & nonstandard observations II. Psychometric considerations: validity, reliability, & standardization III. Progress/recovery & ethnocultural test considerations IV: WHO Model V: Hypothesis formation: aphasia classification & severity classification Cognitive neuropsychological, psycholinguistic & information processing models. VI: Hypothesis Testing VII: Reporting assessment results: SOAP |
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What does PALPA stand for?
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Psycholinguistic assessment of language in patients with aphasia.
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goals of assessment:
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1. determination of presence or absence of aphasia.
2. ID of complicating conditions. 3. Analysis of cognitive and linguistic abilities. 4. functional/social/pragmatic communication assessment. 5. determination of candidacy for and prognosis in treatment. 6. specification and prioritization of treatment goals. |
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right hemisphere damage affects?
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prosodic components and discourse production. NOT APHASIA.
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Left hemisphere damage?
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referred to as aphasia.
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need to rule out what before diagnosing aphasia:
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right hemisphere damage, dementia, traumatic brain injury, primary progressive aphasia, psychiatric disorders.
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complicating conditions:
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audio & visual sensitivity, auditory and visual agnosia, apraxia, dysarthria, hemiparesis, post-stroke psychobehavioral disorders.
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agnosia-
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inability to recognize words, sounds, etc.
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apraxia-
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problem with motor engrams (function words (on, off), nonwords.
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dysarthria-
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related to site of regions. results from lesions to motor speech systems
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motor engrams-
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if you know a word, response becomes automatic.
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hemiparesis-
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damage will be to opposite side.
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aphasia is a _________ disorder of language.
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primary
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aphemia-
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problem in production of a word (articulation disorder).
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analysis of cognitive linguistic abilities:
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assessment of cognition, attention, memory, language, executive functions, visuospatial skills.
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episodic memory:
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memory used to recall past events.
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working memory:
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needed for higher-order language tasks. sequencing info while being processed.
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semantic memory:
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storehouse for conceptual knowledge of the world and for facts.
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procedural memory:
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used during execution of automatic tasks and related to how an individual physically carries out a previously learned task.
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how to assess executive functions:
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must include non-verbal tasks.
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executive functions are needed to function independently and often include:
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planning, sequencing tasks, problem solving, reasoning, making judgements.
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visual perception encompasses:
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the ability to discriminate, analyze, recognize, and interpret visual stimuli.
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what to do in functional testing activities:
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Express ideas, start conversations
Use the phone, make appointments Understand time, design and follow a schedule Manage finances, write checks and engage in banking Shop, make purchases, use coupons Plan a menu, prepare meals Read and understand signs, symbols, and maps Write letters, follow written directions, take orders Engage in social exchanges, discuss feelings Engage in leisure activities including use of internet and email Conduct work-related tasks (as possible), write a resume, complete applications, and more… |
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determination for candidacy for prognosis in therapy:
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age, gender, education and pre-morbid intelligence.
etiology and type of stroke, time since onset, physical and mental health problems, medications. language profile, stimulability, personality and social variables. |
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follow ____ model for both assessment and intervention.
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WHO
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treatment ultimately must:
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improve communication and participation in real life.
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4 areas to consider when planning treatment:
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patient's impairments, patient's needs, patient's wants, current skills and levels of functioning.
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functional goals may include:
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Use the phone for an emergency (call 911)
Speak to convey a message / feelings Convey basic needs (hunger, fatigue) Follow simple directions (set alarm clock) Use money in proper context Read recipes and carry out in proper order Engage in social relationships Enjoy hobbies or family encounters Keep up with current news (read headlines, watch TV) Function independently person for a given time to engage in a desired event |
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SOAP notes stands for:
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subjective, objective, assessment, plan
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major influences that shaped the consequences-focused approach:
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-influence of models of disability.
-influence of increased accountability. -influence of the disability movement/social model. |
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impairment:
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abnormality of structure or function at the organ level aphasia, hearing impairment)
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disability:
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functional consequences of an impairment (communication problems in context of daily life activities)
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handicap:
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social consequences of an impairment or disability (isolation, joblessness, dependency, role changes)
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influence of increased accountability:
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payers expect significant practical improvements on functional goals.
relationships and self-esteem. |
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influence of disability movement/social model:
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legislation, policy, awareness of perspectives and priorities of people with disability.
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functional communication:
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ability of an individual to communicate in his or her own everyday environment.
"The ability to receive or convey a message, regardless of the mode, to communicate effectively and independently in a givel (natural) environment." |
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chronicity-
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refers to the long term problem of aphasia (if spontaneous recovery after 12-18 months doesn't happen)
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life participation approach to aphasia:
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a consumer-driven-service delivery approach that helps the aphasic clients to achieve their short and long term life goals.
Focuses on consequences of aphasia. Emphasizes the attainment of re-engagement in life by strengthening daily participation in activities of choice. |
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social approach to communication:
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aphasia is more than a lesion within the skull; it is also located outside of the person in dynamic relationships with others and in the social community.
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What is aphasia?
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Aphasia is an impairment due to brain damage in the formulation and reception of language, often associated with diminished participation in life events and reduced fulfillment of desired social roles
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principles of social model:
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Goals of communication: social interaction & transaction of messages
Communication is a flexible, dynamic, multidimensional activity Emphasizes relevant and natural contexts Conversation is the primary site of human communication Focuses on communication as a collaborative achievement Focus on social and personal consequences of aphasia Focus on adaptation rather than impairments Emphasizes the perspectives of the person with aphasia Embraces qualitative as well as quantitative measures of outcome |
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cognitive neuropsychology is:
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a multidisciplinary approach to the study of human mental processes.
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aim of CN assessment:
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is to explain each person's processing skills and deficits in terms of a model of normal language processing.
also to evaluate models of normal cognition by exploring their success in explaining the precise patterns of performance exhibited by people suffering from disorders of cognition. |
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CN focuses on:
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differences between people who present with superficially similar disorders. each person studied in depth to ID processing impairments responsible for producing his or her particular pattern of symptoms.
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lexical processes:
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phonological input lexicon.
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postlexical processes:
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graphemic buffer, oral spelling, written spelling.
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sub-lexical processes:
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phoneme-grapheme conversion systems.
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hemisensory-
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one side of the body
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hemisensory loss-
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problems with gait
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connectionist's approach to aphasia:
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aka information processing approach.
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perisylvian areas related to speech and language:
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primary auditory cortex, auditory association area, premotor/motor cortex, arcuate fasciculus.
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brain mechanisms underlying speech and related functions:
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spontaneous speech, repetition, comprehension of speech, reading, gestural responses, writing and oral reading.
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perisylvian region includes:
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anterior language zone and posterior language zone.
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anterior language zone:
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left frontal lobe. lesion results in broca's aphasia.
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posterior language zone:
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wernicke's area (auditory association cortex). important for storage and retrieval of word meanings and for knowledge and use of grammatical and linguistic rules (wernicke's aphasia).
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connectionist view flow:
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wernicke's receives input from heschl's gyrus (perceives and discriminates auditory stimuli).
WA communicates with BA by arcuate fasciculus. linguistic messages formulated in WA reach BA. Angular gyrus important for reading and writing. |
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wernicke's area does what for words?
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finds meanings of words in the message
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spontaneous speech:
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W's area receives words from mental lexicon, constructs sentences in accordance to linguistic rules, then sends sentences to B's area via the AF. B's area translates it into action plan and sends it to PMC. PMC issues motor command to speech systems.
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Repetition:
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PAC,W,B,PMC,LMN (lower motor neuron)
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oral reading:
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VC (visual cortex),W,B,PMC,LMN
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spontaneous writing:
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W,PreMC,PMC,LMN & monitoring.
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gestural responses to spoken commands:
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W,PreMC,PMC,LMN
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basic assumptions of CA include:
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LH dominance for language.
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Cortical aphasia syndromes:
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Broca's,
Wernicke's, Conduction, Anomic, Transcortical sensory, Transcortical motor, Global |
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Subcortical aphasia syndromes:
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Anterior capsular/putaminal,
Posterior capsular/putaminal, Global capsular/putiminal, Thalamic |
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tests related to localization approach:
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BDAE, Western aphasia battery
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tests related to the neurolingusitics approach:
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VAST
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connectionistic classification:
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rigid system that can only be supported by clinical observation only during a given phase of the participant's recovery. Does NOT explain for differential recovery rates of different components of syndromes.
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The Aphasia Diagnostic Profile (ADP) is?
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allows systematic typing of aphasia syndromes: global, wernicke's, broca's conduction, transcortical motor, transcortical sensory, anomic, and mixed.
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ADP 5 profiles?
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Classification,
Aphasia, Error, Alternative communication, Behavioral. |