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544 > vision / somatosensation > Flashcards

vision / somatosensation Flashcards

1
Q

visual acuity

A

how clearly we see

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2
Q

visual processing

A

refers to accurate input and integration

guides motor output

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3
Q

two systems of visual processing

A

spatial, ambient: magnocellular

object, focus: parvocellur

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4
Q

spatial ambient vision

A

magnocellular
where am I, where is it

proactive
fast, subconscious

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5
Q

object, focal vision

A

parvocellular

what is it
reactive
slower, detailed, object ID

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6
Q

role of vision in movement

A

provides exertnal cues for verticality / motion detection

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7
Q

visual info better for __ movements, and __ contorl

A

slow

feedforward

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8
Q

feedforward control

A

proactive anticipatory

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9
Q

feedback control

A

reactive componsentory

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10
Q

APA

A

ability to predict upcoming obstacles

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11
Q

CPA

A

react to unanticipated dirsuptions

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12
Q

behaviour signs impaired vision in mobily

A 
postural sway
falls
hesitancy to go out at night 
walks slowly
hits things
uses somatosensory / auditory cues to navigate obstacles
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13
Q

behaviour signs may present with UE use

A

inaccurate reaching

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14
Q

post traumatic vision syndrome

A

eyes drifting
double blurred vision
light sensitve
concentration difficulties

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15
Q

___ common in post traumatic vision syndrome

A

over focalization

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16
Q

over focalization

A

detail first
spatial awareness second

trouble releasing fixation
trouble switching from focal to spatial systems or using both together

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17
Q

Visual midline shift snydomre

A

after TBI or CVA
spatial visual process changes it orientation
both lateral and traverse midline affected

18
Q

are both lateral and transereev midline effected in visual midline shift syndrome

A

yes

19
Q

is VOMS a sideline assessment

A

no its screening tool for mTBI and concussion

20
Q

intervention for impaired vision

A

maximize visual inputs
, somatosensation to compensate, vestibular input if balance impaired

CNIB referral
visual therapy

21
Q

example if maximizing use of visual inputs

A

eye path for diplopia

gaze stability exercises

22
Q

example of use of somatosensation to compensate

A

walking aid

23
Q

somatosensation

A 
collective term for 
touch temp 
body position
pain vibration
pressure
24
Q

how is somatosensation recognized

A

mechanorecepotrs
thermoreception
proprioception
nociception

25
Q

what does pain n temp tract

A

lateral spino thalmist

26
Q

vibration and position sense from tract

A

dorsal

27
Q

individuals with somatosensation impaired could have

A 
hypersensitive
hypo sensitivity
numbness
neuropathic pain
complex regional pain
dec prop, touch
28
Q

somatosensation imparied at risk for

A

pressure sores and burns

29
Q

somatosensation provides info on

A

body position in reference to supported surface

relationship body segs to one another

30
Q

____ enabled by interaction of sensory and motor systems

A

stereogensis

31
Q

how does somatosensation in postural control

A

orientated / posture

32
Q

T/F somatosensation is necessary for skill acquisition

A

t

33
Q

t/f the role of afferent input changes based on type of learning

A

true (i.e fast or slow, visually guided or not)

34
Q

behaviours suggesting impaired somatosensation

A 
balance
spontaneous use of limb
sensory ataxia
can't sustain a contraction (grip_
can't learn new skills but can do old
35
Q

assessment for somatosensation

A

light touch
temp
pain (sharp dull)
joint position sense

36
Q

intervention for impaired somatosensation

A 
educate on limb protection / skin care
maximize cog / somatosensory input
maximize vestibular input
education on evneiorment
adaptive equipment
increase confidence
37
Q

example convictive somatosensory input

A

imagery

mirror

38
Q

how to maximize use of available somatosensation

A 
LE balance
minimize edema 
promote active movement
promote changes in sensory stimule
desensitize hyper sensitivity
39
Q

how to maximize visual input

A

look at hand before reaching
look ahead to future foot placement
declutter
night light

40
Q

how to maximize use of vestibular inputs

A

train balance with eyes closes

41
Q

what might you educate your client on with impaired somatosensation

A

dark rooms

hot stoves

544 (19 decks)

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