Right Hemisphere Disorder

Overt communication problems can result from what?

underlying cognitive impairments

Awareness and RHD

Anosognosia

Highly common. Prevalence - 77% of individuals w/ unilateral CVA

Attention and RHD

Divided, Alternating, and Focused/Selective, Sustained attention

Neglect can be visual, auditory, a/o tactile

What is the lack of ATTENTION to information presented in the contralateral hemisphere. (Left in RHD)? 

Unilateral neglect

Affects 13-80% of patients

What are the two main types of unilateral visual neglect?

1. Egocentric /Viewer centered neglect 

2. Allocentric /object centered neglect 

If an individual …

1. Fail to respond to stimuli on left side of body 

2. Left space shifts with midline gaze, focus 

They may have what type of neglect?

Egocentric /Viewer centered neglect 

If an individual …

1. Ignore the left side of objects despite the

2. placement of the object in visual field

They may have what type of neglect?

Allocentric/Object centered neglect

RHD and Memory/Learning

COMMON

Challenges w/ recalling linguistic information

Non-linguistic information is hard (e.g. sensory/auditory/visual)

RHD and Perception

Agnosia (inability to recognize ppl/objects/sounds)

T/F: Language and Cognition do not overlap in neuropathways

Language and Cognition do overlap in neuropathways

1. Merge end of word on left with next word (Bill’s cat becomes “scat”) 

2. Read only half of compound words (room for bathroom)

3. Text (only reading right midline)

This is an example of….

Neglect Dyslexia 

Describe what neglect agraphia is….

1. They are unaware

2. Omission of details on the Left

3. Organizing difficulties 

Difficulty Prosody can cause a breakdown in what 3 areas?

1. Grammatical and pragmatics

2. Intonation patterns to convey emotion 

3. Difficulty comprehending emotions in messages

what is the prevalence of aprosodia?

20-80%

What are the 2 stages for comprehension framework ?

1. Construction

2. Integration

Construction Framework

multiple potential meanings ACTIVATED 

Integration Framework

Meanings/features integrated within the context

Irrelevant or less appropriate features SUPPRESSED 

Why can an attention impairment also affect comprehension?

bc then they have difficulty attending to contextual cues, meanings, inferences to comprehend

individuals w/ RHD may have difficulty with what aspects of comprehension?

Inferences, nonliteral language, understanding big picture 

INTEGRATION issue, NOT language issue

Describe Discourse

organization and output of info

Describe 3 s/s an individual with RHD may present with regarding speech.

Hyperverbal

Disorganized/Tangential

Egocentric 

Confabulations 

Hypo-verbal