Sensory Discrimination and Sensory Based motor Disorders Flashcards
What are the two types of Discrimination?
- Detection-the ability to discriminate a positive stimulus to a null stimulus
- Recognition-The ability to tell two positive stimuli apart
What might a child with discriminatory issues have problems with?
Manipulation of fasteners or other manipulatives
Tool use(pencils, crayons, eating utensils)
Eating-Moving food in mouth and clearing food
Movement of body through space/grading force of movement(bull in china shop)
What are the five categories of the SIPT?
Manual form perception kinesthesia finger identification graphesthesia localization of tactile stimuli
What are some TX for discriminatory problems?
Do prep work to prepare body and brain for activity (Prope. and Vest)
Grade intensity stimulus
Work with child to develop cognitive strategies or use other senses
Adapt features of the environment
What are two categories of sensory based motor disorders?
- Postural disorders
2. sensory based dyspraxia
What are characteristics of postural disorders?
Low muscle tone
Poor stability (even at rest)
Difficulty with extension against gravity
Impaired arousal
Poor oculomotor control
Immature righting and equilibrium reactions
Poor weight shifting and trunk rotation
T/F Postural Disorders are a vestibular disorder?
True
What are characteristics of Sensory Based Dyspraxia?
Impaired ability to conceive of, plan, sequence and execute novel actions
What are the 3 components of sensory based dyspraxia?
Ideation
Planning
Execution
(Need all three impaired to be considered dyspraxia)
Which sensory systems are impaired in dyspraxia?
Somatosensory
Vestibular
Visual
What are some functional problems for postural disorders?
Name 2
- Difficulty maintaining seated posture at desk or table
- Reduced distal control for tool use
- Difficulty extending neck and keeping head up to copy from board, attend to teacher, or socially engage with peers
- May impact eye movements due to decreased head stability
- Tire easily during play
- May be fearful or uncomfortable with movements that challenge their postural stability
What are some TX for postural disorders?
Provide opportunities for vertical or linear activities
Add proprioception to activate tonic postural extension
(SI Theory-Change the brain to change the body)
Provide motivation activities to strengthen postural muscles(Bio-mechanical Theory-change the body to increase input to brain)
What is the role of proprioception in praxis?
speed, rate, sequence, timing, force, joint position
What is the role of tactile in praxis?
spatial and temporal characteristics of touch, dexterity, manipulation
What is the role of Vestibular in praxis?
posture, balance, occulomotor control, bilateral coordination, projected action sequences
