Shared Flashcard Set

Details

Aphasia- CDIS 631 Set #2
Aphasia: defined and Assessment
55
Health Care
Graduate
10/20/2008

Additional Health Care Flashcards

 


 

Cards

Term
This definition of aphasia suggests:
- Aphasia is a single (uni-dimensional) disorder
-Different "types" don't exist
Definition
Non-Typological definition of Aphasia
Term
This definition suggests:
-Aphasia is Multi-dimensional with different types (eg syndromes)
Definition
Typological definition of APhasia
Term
This definition of aphasia suggests:
- aphasia is based on cognitive impairments
- explicitly reference impaired cog processes underlying language
- Works well with Alexias and Agraphias
Definition
Cognitive Definition of APhasia
Term
This definition of aphasia suggests:
- approach to aphasia not as an individual, but as belonging to society
- serves to broaden assessment and TX to include social roles
Definition
Social Definition of Aphasia
Term
Zone of Language (Perisylvian Zone)
Definition
What is the region of the left hemisphere responsible for language called?
Term
Zone of Language/Perisylvian Zone should NOT be considered "what"?
Definition
Should NOT be considered a "center" for language--- actually, a CRITICAL COMPONENT of several overlapping neural networks throughout the brain
Term
What subcortical "white matter pathways" connect Wernicke's and Broca's areas?
Definition
The arcuate fasciculus and superior longitudinal fasciculus connect BUT pass through the angular gyrus and supramarginal gyrus (where par and temp lobes come together)
Term
The Zone of Language (Perisylvian Zone) is located withing the distribution of which cerebral artery?
Definition
ZofL is located within MCA and surrounds the sylvian fissure on the lateral surface and incorporates frontal, parietal, AND temporal lobes
Term
This component of the ZofL is responsible for: motor programming for artic
Definition
Broca's area in the ZofL
Term
This component of the ZofL is responsible for: activation of muscles for artic
Definition
Motor Strip in the ZofL
Term
This component of the ZofL is responsible for: transmission of linguistic info to anterior areas from the posterior
Definition
Arcuate Fasciculus of the ZofL
Term
This component of the ZofL is responsible for: transmission of linguistic info to anterior areas from the posterior
Definition
Arcuate Fasciculus of the ZofL
Term
This component of the ZofL is responsible for: comprehension of oral/spoken language
Definition
Wernicke's Area in the ZofL
Term
This component of the ZofL is responsible for: integrating visual/auditory and tactile info and carry out symbolic integration for reading
Definition
Angular Gyrus of the ZofL
Term
This component of the ZofL is responsible for: the symbolic integration for writing
Definition
Supramarginal gyrus of the ZofL
Term
This component of the ZofL is responsible for: the transmission of info between hemispheres
Definition
Corpus Callosum of the ZofL
Term
This component of the ZofL is responsible for: thalamic naming & memory mechanisms, insular, capsular, and striatal language and speech mechanisms
Definition
Subcortical areas of ZofL
Term
What is aphasia?
Definition
Disturbance of any or all of the skills, associations, and habits of spoken or written language, produced by injury to certain brain areas that are specialized for those functions.
Term
What are common misconceptions of aphasia?
Definition
Dementia (slow onset), schizophrenia (word salad may be confused for fluent aphasia--- evolves and has other thought disorders), apraxia (planning), OR dysarthria (weakness of muscles)
Term
What are patterns of language impairment in aphasia?
Definition
Speech Fluency, paraphasias, auditory comprehension, and repetition
Term
Describe the fluency for non-fluent aphasias...
Definition
Damage to anterior half of left hemisphere-- speak slowly and with great effort pausing between words/syllables. Has measured machine-like quality owing to diminished or absent intonation and stress
Term
Describe the speech fluency chars of a fluent aphasic
Definition
Damage to posterior half of left hemispher and speak smoothly with little effort and manipulate rate/intonation/emphatic stress much like a non-aphasic... words just don't make sense
Term
Which types of aphasia are fluent?
Definition
Wernicke's, conduction, anomic, transcortical sensory aphasia
Term
What types of aphasia are non-fluent?
Definition
Broca's, Global, Transcortical Motor
Term
What is a paraphasia?
Definition
Production of unintended syllables, words, or phrases during speaking.
Main kinds: phonemic (literal), semantic/verbal, and neologistic.
Term
What is a phonemic (literal) paraphasia?
Definition
Phonologic error in which incorrect sounds replace correct ones when sounds w/in words are transposed--
Shooshbrushes, tevelision, poo, etc.
**More than 1/2 the word must be correct
Term
What is a semantic (verbal) paraphasia?
Definition
Errors where the target word is substituted by another word.
IE-- using "knife" instead of fork

*replacement must be a real word
*subtypes: related and unrelated
Term
What is a neologistic Paraphasia?
Definition
Errors in which less than half of the target word is produce correctly, in some cases THE ENTIRE WORD
Term
Area of Occlusion for brain damage with Broca's Aphasia
Definition
Occlusion of the anterior branch of the middle cerebral artery
Term
Area of occlusion for brain damage with Wernicke's aphasia
Definition
Occlusion of the posterior branch of the middle cerebral artery
Term
Area of occlusion for brain damage portraying Global Aphasia
Definition
Occlusion of the main trunk of the middle cerebral artery (therefore causing occlusion in BOTH anterior/posterior)
Term
Conduction and Transcortical Aphasias are due to what kind of damage?
Definition
Damage to association tract fibers cause these types of aphasia.
Term
Damage to the arcuate fasciculus causes what type of aphasia? W->B
Definition
Conduction aphasia is caused by damage to what part of the brain?
Term
Damage to the pathways connecting the perisylvian region with OTHER regions due to damage to the border zone results in what type of aphasia?
Definition
Transcortical aphasia is due to damage in this part of the brain.
Term
What is hemiapnosia?
Definition
loss of vision that affects half the visual field of one or both eyes.
Term
What is visual neglect?
Definition
This is an attentional problem to one side, not an actual LOSS of visual field.
Most commonly due to damage to parietal lobe.
Term
What is apraxia?
Definition
Neuro disorder (acq or dev) char by loss of ability to execute or carry out learned purposeful mvmts despite the desire and phys ability (ALL MOTOR PLANNING)
Term
What is agnosia?
Definition
Loss of knowledge; loss of ability to recognize objects, persons, sounds, shapes, or smells
Term
Right hemisphere comm disorders (extralinguistic) are broken into these four areas...
Definition
1. Effects on language, 2. social interaction skills, 3. Attn and Perception, and 4. Cog/Thinking skills
Term
What is anosognosia?
Definition
Denial of illness (could vary from simple understatement to frank denial)
Term
What is acalculia?
Definition
Inability to perform math computations
Primary - total loss of # concepts
Secondary - defect in calculations
Term
What are the four tiers of aphasia classification differential diagnosis?
Definition
Naming (anomia) -> Fluency -> Auditory Comprehension -> Repetition
Term
What is anomia?
Definition
difficulty finding the right word at the right time
Term
what are the major types of anomia?
Definition
word production anomia, word selection anomia, semantic anomia, and disconnection anomia
Term
word production anomia
Definition
frontal lobe/broca's are... motor problems
Term
word selection anomia
Definition
damage in post/inf portion of temporal lobe... "true" anomia= pt can describe, gesture, write, or draw but can't say AND can recognize once given
Term
Semantic Anomia
Definition
often assoc with TSA... don't recognize and don't experience tip-of-tongue phenom
Term
Disconnection Anomia
Definition
Category specific (can't name words in specific categories) AND Modality-Specific (can't name in pics but CAN actual thing)...
Term
what are the three main types of paraphasia?
Definition
phonemic, semantic, and neologistic
Term
What is agrammatic speech and what is another term for it?
Definition
Telegraphic speech--- using basic content words but no connecting articles or function words
Term
What is paragrammatic speech?
Definition
Most fluent speech with words but that don't actually make sense
Term
Why is repetition important?
Definition
It helps define between different cortical aphasia types...
Conduction APhasia - SIGNIFICANT IMPAIR
Anomic - Rep still intact
Transcortical Aphasia - Rep intact
Broca's/Wernicke's - Poor Rep
Term
which aphasias have Poor comprehension?
Definition
Wernicke's, TSA, and Global (for sure!)
Term
What is alexia?
Definition
loss of the ability to read/understand written language
Term
what is agraphia?
Definition
loss of the ability to write
Supporting users have an ad free experience!