Ch. 12: Right Hemisphere Syndrome (RHS) Flashcards
Define Right Hemisphere Syndrome (RHS)
o symptoms associated with right hemisphere damage (RHD), or right brain injury (RBI). It may be associated with any neurological etiology, such as stroke, traumatic brain injury (TBI), tumors, or infectious processes, and the resultant damage may be located in any part of the right hemisphere.
Identify how RHS affects communication
o primarily in the area of cognitive-communicative or cognitive-linguistic impairments
Expressive and receptive challenges of RHS
Lack of perspective regarding another person’s feelings or point of view (theory of mind)
Codeswitching deficits
Inattentiveness
Poor turn taking, frequent interruptions during conversation
Poor eye contact
Problems making use of contextual cues
Receptive challenges of RHS
Problems interpreting themes, morals, main ideas
Problems with making inferences
Tendency toward literal interpretation of figurative language (difficulty with idioms, indirect requests, sarcasm)
Difficulty shifting topics
Difficulty interpreting facial expressions
Difficulty interpreting humor
Receptive aprosodia
Expressive challenges in RHS
Poor topic maintenance, relevance, discourse cohesion, organization of content, use of macrostructure, main ideas, and themes
Inefficient expression, inappropriate level of detail
Frequent tangential comments
Flat affect or inappropriate emotional expression
Dysprosody
Limited initiation of conversations
Reduced use of facial expressions to convey emotion and meaning
Disinhibition of inappropriate language and humor
Confabulation
Hypoaffectivity
Hyperaffectivity
Expressive aprosodia
Attention problems in RHS
Anosognosia
Hemispatial (left) neglect
Problems with vigilance, orientation, sustained attention, focused attention, selective attention, attention allocation, and alternating attention/attention switching
Memory challenges (see also specific aspects of memory listed in Box 11–1)
Verbal
Nonverbal
Executive function deficit Problems with RHS
Reasoning Judgment Decision making Goal setting, planning, strategizing Self-monitoring, awareness of strengths and weaknesses Problem solving Organizing Sequencing
Reading problems with RHS
Visuospatial difficulties in interpreting letters and words
Problems interpreting content, as noted for auditory comprehension
Writing problems with RHS
Visuospatial difficulties with writing or copying letters, words, ideographs, and symbols
Problems with expression, as noted for discourse
Visual-perceptual impairments with RHS
Visual memory problems Prosopagnosia Visuo-constructive deficits Visuospatial disorientation Topographical disorientation
Auditory-perceptual impairments with RHS
Amusia
Auditory agnosia
Sound localization deficits
Identify receptive language challenges
o Difficulty shifting topics
Identify expressive language challenges
o Poor topic maintenance
Identify cognitive challenges
o Problem solving
o Organizing
o Sequencing
What is right hemisphere syndrome (RHS)?
o A constellation of symptoms associates with right hemisphere damage, or right brain injury.
What is Hypoaffectivity:
o may be demonstrated as flat expression of emotion conveyed by reduces prosody and a lack of conversational or social initiative.
What is Hyperaffectivity:
o may be evidenced as a degree of exuberance and incessant talking
What is the Social cognition deficit hypothesis?
o the notion that right hemisphere networks are important for critical aspects of relating to others, such aa empathy, and understanding and responding to others’ perspectives.
What is the Theory of mind?
o the ability to interpret, infer, and predict the thoughts, beliefs, feelings, and intentions of others and to differentiate the thoughts and perceptions of others from one’s own.
What is the Cognitive resources hypothesis?
o The communication deficits seen in people with RHS are highly dependent on the degree of attention and working memory demands of a given communicative task. Deficits in linguistic performance are seen as being attributable to limited cognitive resources mediated by the right hemisphere, not to linguistic impairments per se.
What is Figurative language:
o expressions that require abstraction to infer meaning that cannot be gained through literal interpretation.
What is Inferencing:
o the act of making a logical conclusion about intended meaning based on what has been communicated.
What is the suppression deficit hypothesis
o suggests that people with RHS are typically able to generate multiple interpretations of words, sentences, and stories but have a harder time selecting a most plausible interpretation when given suggested interpretations to choose from.
What is Discourse coherence:
o the tying together of content in a logical way to express ideas effectively and efficiently.
What is Codeswitching:
o taking into account the person with whom one is speaking in considering appropriate adaptations of what is being expressed and how it is being expressed.
What is Prosody:
o the intonation, stress, and rhythm of speech.
What are Tonal languages:
o languages in which changes in tones change the literal meaning of a word.
What is Dysprosodia/dysprosody:
o prosody deficits
What is Prosopagnosia:
o difficulty recognizing familiar faces
What is preservation:
o Tendency to repeat words or parts of words previously spoken that are not the target word
o Ex: saying ‘head’ for ‘face’
What is Paraphasia:
o Words that are substituted for target words. Can be semantic or literal.
What is Neologism:
o Refers to nonwords; literally, “new words”. This happens in Wernicke’s aphasia.
o Ex: saying “bring me a trunket”, instead of “bring me a drink”.
What are Semantic Paraphasia?
o (Also called verbal or global paraphasia’s). It is the substitution of a real word for the targeted word. The words can be closely related or non-related. (I.e., mouth instead of teeth or door instead of microwave).
What is phonemic paraphasia?
o Substitution of one or more sounds in the target word (also called literal paraphasia’s)
o Ex: saying ‘bady’ for ‘baby’
o Ex: saying ‘tegetable’ instead of ‘vegetable’
Semantic Perseveration
A word semantically related to the intended response – words related to the names they replace
(e.g., repeating the word eye when a clinician points to their nose when told to name body parts)
Lexical
Perseveration
A type of recurrent perseveration involving persistence in using the same word used in a previous response instead of an appropriate word.
Ex: The individual names the following items, colors, and letters correctly: feather, glove, yellow, brown, P, T, but then says “brown” when shown the letter H. The actual response is a word that was spoken previously and is not semantically related to the intended response.
Phonemic Perseveration
The response that the individual says, has phonemic features in common with a previous word spoken and it is not semantically related to the previous response. Ex. Instead of saying “ear” when a clinician points to an ear, the patient says “hear”.
Logorrhea
Spoken language that is overly abundant in light of a given communicative context, also called press of speech.
Press of Speech
When an individual is continuing to speak even though everything they are saying is not being understood by others. The speaker does not participate in turn taking during conversations and they are also unaware and do not understand that what they are saying makes no sense to others listening.
Anosognosia
When a person is unaware of his/her illness or deficit; denial of problems.
Telegraphic
When a person with Broca’s aphasia only produces short and simple phrases like someone would back in the day when sending a telegraph. They only use words that are necessary to get their thought across.
Dysnomia/
Anomia
Refers to difficulty with word finding. With anomia, the person often uses other words to get around their errors which allows them to still communicate their intended meaning.
Ex- Having a phone right in front of you but not being able to name it but understanding its function.
Circumlocutions
When a person uses other words, other than the intended words to communicate what they want (e.g., “hand me the cutters” vs “hand me the scissors”) (Lindsey)-it is also using many words to describe something instead of using the actual word
Catastrophic
Reaction
When a person has extreme frustration when struggling to communicate, uncharacteristic and they can’t control it
Stereotypy
When a person repeats the same couple of words or non-words across situations, regardless of what they meant to say. Repeated use of a word or a nonword when communicated with no meaning.
Conduit
d’approche
person attempting to repeat a verbal target over and over. Ex: say the word “ball” Response: “bah, baa, back, bale”
Repetition
Task assigned to a person to copy what was said or written OR an act where the person during communication copies what was said or spoken before.
Emotional
lability
An individual’s tendency to cry, swear, or demonstrate other emotions that are uncharacteristic of the individual’s typical response prior the stroke or brain injury.