Lecture 13: Attention and Perception Flashcards

1
Q

what is the most common symptom of right hemisphere middle cerebral stroke

A

spatial neglect and inattention

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2
Q

why is there less of a negative impact on attention if the left side is affected

A

the right side of the brain attends to both sides

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3
Q

what is Unilateral Neglect

A

a deficit in attention

A failure to orient to, or report, stimuli presented on the side contralateral to the cerebral lesion

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4
Q

what is the relationship between unilateral neglect and ADL recovery

A

it’s a Major predictor of poor recovery for ADL

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5
Q

what are the 4 aspects of unilateral neglect

A

Sensory components

motor components

stimulus characteristics

functional asymmetry

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6
Q

what is the sensory component of unilateral neglect

A

might not feel that they are sitting on their left hand

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7
Q

what is the motor component of unilateral neglect

A

Individual does not use affected limb according to available motor control

attends to one side over the other (dressing, grooming, etc)

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8
Q

what is the stimulus characteristic of unilateral neglect

A

there are different presentations of neglect

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9
Q

what is egocentric neglect

A

most common

based upon observer’s midline

won’t pay attention to the whole left side of what they see

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10
Q

what is allocentric neglect

A

less common

they can’t pay attention to the left side of each thing individually

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11
Q

what is personal neglect

A

neglect of the left side of their body

hand reach test or razor test would be impacted

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12
Q

what is peripersonal neglect

A

neglect within arms reach

bells test, letter cancelation, line bisection would be affected

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13
Q

what is extrapersonal neglect

A

neglect beyond reach

ability to describe articles in the room would be impacted

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14
Q

what is the Functional asymmetry of unilateral neglect

A

they would favor their unaffected side

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15
Q

what is the intervention chosen for neglect dependent on

A

the client’s level of awareness

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16
Q

what are 2 kinds of remediation strategies for neglect

A

scanning training (perceptual anchors)

lighthouse strategies

17
Q

what are compensation strategies for neglect

A

place items on the right side

have people sit on their right side

18
Q

what is perception

A

integration of sensory infos into meaningful information

Primary sensation must be intact in order for a perceptual deficit to be identified.

19
Q

what are figure-ground perception deficits

A

Ability to distinguish foreground from background

glasses in drawer, arm in peach sleeve, etc

20
Q

what are Form Constancy perception deficits

A

Ability to attend to subtle variations in form of objects

distinguishing two objects that look similar

21
Q

what are position in space perception deficits

A

Ability to interpret positioning of objects in relation to each other or to oneself

( In-out, up-down, front-back)

22
Q

what are Spatial Relations Constancy deficits in perception

A

Perceiving position of 2 or more objects in relation to each other and oneself
(depth perception)

23
Q

what are the 2 main aspects of the functional approach intervention for General perceptual deficits

A

task specific training

environmental modifications (less clutter and constrasting colours)

24
Q

what is task specific training

A

De-emphasize visual demonstrations and spatial based language

25
what is visual agnosia
to recognize objects by vision alone May recognize with tactile or auditory skills ex: Prosopagnosia – inability to recognize face
26
what is Tactile Agnosia (Astereognosis)
inability to recognize objects tactually
27
what is Body Schema Agnosia (anosagnosia)
inability to recognize own body parts and relationship to the world
28
what are the 2 most common deficits for left hemisphere damage
Motor perception (apraxia) Language perception (aphasia)