Dyspraxia, apraxia, speech dyspraxia... What's the difference?

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Definitions:
The textbook definition of apraxia and dyspraxia is: "a lack of the ability to plan and coordinate body movements to complete a motor task."
Apraxia typically refers to the loss of a motor function. This is often the result of a stroke or other kind of injury. Children who have experienced an injury, after typical development may become apraxic.
Dyspraxia or developmental dyspraxia refers to children that never developed the skill of motor planning. Verbal dyspraxia is the motoric inability to form words or sentences.

Steps of Motor Planning:
Motor planning or praxis requires many prerequiste skills such as body awareness, spatial organization, sequencing and basic motor skills to name a few.
  1. Ideation: The first step is having an idea of what you want to do through completion. 
  2. Execution: Carrying out the plan. Sequencing the steps and coordinating the movements to engage in the task.
  3. Feedback: This is the step that is often over-looked. Did the plan work? Did it go as smoothly as possible? What should be adjusted for next time.
This is Rupert. He wants to join his friend on a lilypad in the pond (ideation).
His 1st plan was to just jump... but he didn't make it (execution).
He used that feedback to form a 2nd plan: I will jump from on top of this log to the rock, then to a lilypad... 
It worked! I wonder if I can go back a different way? (Confidence to keep planning & trying)

What dyspraxia may look like:
  • Frequently mistaken as lazy or clumsy
  • May bump into things or trip often
  • May quickly break toys that require manipulation, like a car that transforms into a super hero
  • May watch others play rather than participating
  • May "talk" their way though an activity or use verbal skills to avoid tasks they perceive too challenging 
  • Avoids playing with construction toys and puzzles
  • May have trouble following verbal directions
  • May find sports and games at gym difficult and may avoid them
  • May impulsively jump into an activity, then appear "stuck", not sure what to do next.