Lecture 7b

Question 1

What is visual acuity?

Answer 1

Damage to retina, optic nerve and posterior cerebral

Question 2

What is diplopia?

Answer 2

When eyes do not look evenly at an object

Question 3

What is visual attention?

Answer 3

• Ability to use vision to discern information about objects, including their relationship to the person and other objects
• Also ability to shift attention from one object to the other

Question 4

What is hemi inattention?

Answer 4

• decreased ability to react to or process sensory stimuli

- CONTRALATERAL side

Question 5

What do visual perception disorders do?

Answer 5

Impair the ability to recognise and identify familiar objects and people

Question 6

What is object agnosia?

Answer 6

Inability to verbally identify objects using vision

Question 7

What is colour agnosia?

Answer 7

Inability to remember or distinguish between colours

Question 8

What is colour anomia?

Answer 8

Inability to name a colour

Question 9

What is metamorphopsia?

Answer 9

Visual distortion of objects such as their weight and size

Question 10

What is prosopagnosia?

Answer 10

Inability to recognise and identify familiar faces?

Question 11

What is simultanagnosia?

Answer 11

Inability to recognise and interpret a visual array as a while

Question 12

What is apraxia?

Answer 12

A disorder of purposeful movement that cannot be explained by sensorimotor dysfunction or comprehension difficulties
- Loss of praxis due to not knowing
>what to do
>how to do it

Question 13

What is ideational apraxia?

Answer 13

Breakdown in knowledge of what is to be done

• Uses familiar objects incorrectly
• Does not use objects when appropriately
• Sequencing is incorrect

Question 14

What is ideomotor apraxia?

Answer 14

Loss of memory patterns that are used in purposeful movement

• deficit in planning and sequencing of movements
• Awkward or clumsy movement
• Often cannot follow instruction but can do it on their own

Question 15

What is dressing apraxia?

Answer 15

• Difficulty to plan the actions to dress effectively

- Difficulty orientating clothes on the body

Question 16

What is constructional apraxia?

Answer 16

Inability to organise or assemble parts into a whole

Question 17

Impact of perceptual disorders on OP

Answer 17

• World seems unfamiliar and confusing
• ADL tasks are slow and difficult to perform
• Household appliances difficult to operate

Question 18

Assessment methods

Answer 18

Tasks selection and analysis
- Observational assessment of person performing activity or task 
- Assess with AMPS PRPP
Person-performance components 
- Screening

Question 19

What are adaptive/compensatory approaches and how can they be used for this condition?

Answer 19

• Focus on decreasing the impact of the impairment on everyday activity
• Repetitive practice of everyday activities
  >using external strategies (prompts and cues)
  >adaptations to environment or task

Question 20

What are remedial/restoration approaches and how can they be used in this condition?

Answer 20

• Aim to remedy the impaired component skill

- Development of internal strategies