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Aphasia > Right Hemisphere Dysfunction > Flashcards

Right Hemisphere Dysfunction Flashcards

1
Q

Hemispheric Asymmetry

A

Right & left hemispheres are anatomically & functionally asymmetrical
Differences greatest in certain areas surrounding the sylvian fissure

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2
Q

Sylvian Fissure Hemispheric Differences

A

Slightly longer in the left hemisphere than the right
Planum temporale is a part of the superior surface of superior temporal gyrus; area is longer on the left than the right for most people
Left temporal opercular region is larger & more infolded on left than right (Broca’s)

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3
Q

Hemisphere Connections

A

Well-connected via corpus callosum

Contains more than 300 million axons (commissural fibers)

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4
Q

Left Brain Characteristics:

A

Uses logic, detail oriented, facts rule, words & language, past & present, math & science, can comprehend, knowing/ acknowledges, order/pattern perception, knows object name, reality based, forms strategies, practical & safe

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5
Q

Right Brain Characteristics:

A

uses feeling, “big picture” oriented, imagination rules, symbols & images, present & future, philosophy & religion, can “get it” (meaning), believes/appreciates, spatial perception, knows object’s function, fantasy based, present possibilities, impetuous & risk takers

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6
Q

Left Hemisphere Language

A

Speaking aloud, auditory comprehension, naming, reading comprehension, reading aloud, writing

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7
Q

Left Hemisphere Constructions

A

Internal detail

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8
Q

Left Hemisphere Calculation

A

Arithmetic processing

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9
Q

Left Hemisphere Memory

A

Verbal

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10
Q

Left Hemisphere Miscellaneous

A

Praxis

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11
Q

Right Hemisphere Language

A

Auditory comprehension, reading comprehension, prosodic expression, prosodic comprehension

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12
Q

Right Hemisphere Constructions

A

External configurations

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13
Q

Right Hemisphere Calculations

A

Spatial arrangement

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14
Q

Right Hemisphere Memory

A

Visuospatial

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15
Q

Right Hemisphere Miscellaneous

A

Facial Recognition

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16
Q

Right Hemisphere Function

A

Seemingly responsible for: arousal, orientation, attention; visual perception; emotional experience & expressions

17
Q

In right handed individuals, the right hemisphere is responsible for ______ related to arousal, orientation, attention:

A

Arousal, orientation, vigilance, selective attention, sustained attention

18
Q

Arousal

A

General readiness to respond to external stimuli; alert; ready to react

19
Q

Orientation

A

Directing one’s attention to a specific stimulus, event, or location; know where you’re going

20
Q

Vigilance

A

Sustained attention used to detect changes in the stimulus

21
Q

Selective attention

A

Ignoring some stimuli while paying attention to certain specific stimuli

22
Q

Related to visual perception, the right hemisphere appears to process:

A

Holistic, gestalt-like stimuli
Geometric & spatial info
Facial recognition
Body image

23
Q

Holistic, gestalt-like stimuli

A

Looking at big picture; grasping meaning of total picture

24
Q

Geometric & spatial information

A

Understanding or recognizing spatially organized shapes or figures

25
Q

Facial recognition

A

Responsible for recognizing familiar faces; 4-10 month old infants will show interest in their mother’s faces (high amplitude sucking)

26
Q

Body Image

A

Helps maintain proper body image & what’s acceptable socially based on life experiences, etc.

27
Q

Right Hemisphere & Emotional Experiences & Expression

A

Dominant for emotions; perception of temporal order; perception of musical harmony; certain aspects of communication

28
Q

Emotions

A

The expression of being angry, happy, sad, etc. (all the different emotions); understanding how emotions impact you based on the stimuli you’re receiving from environment (amygdala—fight and flight responses, etc); where that info is stored—what it means to be happy, sad, etc.

29
Q

Perceptions of Temporal Order

A

Dominant for perceiving the temporal order or sequence of events; understanding the serial-ness of events

30
Q

Perception of Musical Harmony

A

Music and processing of acoustic signals; generic music; understanding harmonies, etc.

31
Q

Hemispheric Interplay & Communicative Functions

A

Possible w/ regards to discourse comprehension & production

32
Q

Communicative Functions

A

Rt. hemisphere may be less efficient in understanding verbs than nouns; may help make inferences implied in verbal exchanges
Communicative efficiency & specificity may be centered in rt. hemisphere; understanding alternative & ambiguous meanings; understanding or expressing emotional tone of verbal expression; understanding or expressing prosodic aspects of speech; understanding contextual info of verbal expression; managing pragmatic communication skills

33
Q

Pragmatic Communication Skills

A

Turn-taking
Topic Maintenance
Social Appropriateness of Communication
Eye Contact

34
Q

Neuropathologies Etiologies

A

CVAs, tumors, head trauma, & various neurological disease processes

35
Q

Neuropathologies

A

Individuals who sustain RHD secondary to posterior lesions don’t have motor disabilities
Those w/ frontal lobe damage will have motor disturbances

36
Q

Varied Sx’s Pt’s w/ RHD might exhibit may be grouped according to:

A

Perceptual & attention deficits
Affective deficits
Communication deficits

37
Q

Perceptual & attention deficits

A

Left neglect
Visuospatial impairments
Forms of disorientation

38
Q

Left Neglect

A

Reduced sensitivity to stimuli, reduced awareness of space or absence of previously learned responses from stimuli in certain visual fields
Can result from damage to any lobe
Can be left or right dominant
Right parietal lobe damage produces left neglect in most pts

39
Q

Left Neglect Characteristics

A

Right focus, difficulty shifting attention from right to left, failure to perceive left-sided tactile or perceptual stimuli, failure to copy left side of a picture or a geometric design, disownership of left body parts or belongings, denying illness (anosagnosia), left-neglect in reading/writing

Aphasia (8 decks)

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