Neuro Flashcards

1
Q

What does ABI stand for?

A

Acquired brain injury

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2
Q

What does TBI stand for?

A

Traumatic brain injury

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3
Q

What is acquired brain injury?

A

Any condition/even resulting in a sudden, non-progressive or non-degenerative change in neurological processing.

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4
Q

What are included under the umbrella term “ABI”?

A

Traumatic brain injury
Stroke or cerebral vascular accident
Post-surgical neurologic Complications
Vestibular dysfunctions

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5
Q

What are some of the conditions often seen in TBI?

A
Decreased level of consciousness
Amnesia
Skull fracture
Neurological or neurophsychological abnormality
Intracranial lesion
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6
Q

Shearing forces in the brain may cause what?

A

Breakage of blood vessels (epidural or subdural hematomas)

Diffuse axonal injury

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7
Q

What are some symptoms of post trauma vision syndrome?

A
Convergence insufficiency
High phoria
Accommodative dysfunction
Poor attention/concentration
Oculomotor deficits/visual-spatial distortions
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8
Q

What occurs visually in the occipital lobe?

A

Contour
Contrast
Depth

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9
Q

What occurs visually in the frontal lobe?

A

Motor planning

Self directed eye movements

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10
Q

What occurs visually in the temporal lobe?

A

Recognition of people, places and things

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11
Q

What occurs visually in the parietal lobe?

A

Spatial organization of objects and visual attention

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12
Q

What percent of fibers are dedicated to the parvocellular pathway?

A

80%

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13
Q

What occurs in the parvocellular pathway?

A

Central processing/Focal vision

Recognition

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14
Q

Is the parvocellular pathway the ventral or dorsal stream?

A

Ventral

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15
Q

What is the pathway of the parvo cells?

A

LGN -> Occipital -> Temporal

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16
Q

Is the magno pathway the dorsal or ventral stream?

A

Dorsal

17
Q

What percent of fibers contribute to the magno pathway?

A

20%

18
Q

What does the magnocelluar pathway recognize?

A

Where is it? (visual-spatial/sensory modality of space)

19
Q

What movements of the eye are associated with the magno pathway?

A

Persuits
Saccades
Vergence

20
Q

What is the pathway for the magno cells?

A

LGN -> Occipital -> Parietal

21
Q

What does ambient vision lead to?

A

Binocularity
Accurate judgement of distance and movement
Defining our self image/view of the world

22
Q

Interfering with the central/focal processing causes what two things?

A

Refractive shifts

Accommodative dysfunction

23
Q

What is visual neglect?

A

Cognitive deficit that refers to the unawareness of objects, people, and visual stimuli presented in a visual space contralateral to the cerebral lesion

24
Q

Most patients with visual spatial neglect will also have what?

A

A visual field loss

25
Q

What tests can we run for people with visual neglect?

A

Line bisection

Clock drawing

26
Q

In the line bisection test, if a patient is bisecting lines closer to the right edge, which visual field to they neglect?

A

Left side

27
Q

What is visual midline shift syndrome?

A

The mismatch of information and distorting of space due to disruption of ambient system

28
Q

What are some symptoms of visual midline shift?

A

Alteration of posture

Difficulty with balance

29
Q

How can we adjust a visual midline shift?

A

Yoked prisms

30
Q

What outdoor tint colors are used for photophobia?

A

Brown or gray

31
Q

What indoor tint colors are used for photophobia?

A

Blue or gray (blue for fluorescent lighting)

32
Q

Can diplopia from acquired brain injury resolve itself?

A

Yes, over a period of months

33
Q

What can be done to rehab oculomotor deficits?

A

Line tracing, Ann Arbor tracking
Track printed words from book on tape
Color in specific letters on a page