Motor Control - Postural Control: Sensation, Perception, and Cognition

What do you need accurate sensation for?

needed to receive input about our environment and our orientation to the environment

how to you assess sensation?

light touch, sharp dull, temperature, vibration, proprioception

how do we present when our senses don't match?

dizzy, off balance, fall

what information do you receive from vision system?

reference to "verticality"

What information do you receive from somatosensory system?

the surface

What information do you receive from vestibular system?

internal reference to gravity

what is sensory integration?

the CNS ability to modify importance of any one sense for postural control

What is sensory reweighing critical for?

maintaining steady state balance in changing sensory environment and task conditions

describe the sensory weighting model?

the CNS modifies the weight of a sensory input depending on its relative accuracy for orientation, CNS needs to resolve sensory conflicts the realtime weight given to a sense varies a function of task, environment and age

What theory/model does sensory integration follow?

sensory weighting model

1 multiple choice option

what is the normal sensory weighting of each system?

30% vison, 10% vestibular, 60% somatosensory

2 multiple choice options

how does sensory weighting change when you are walking on unstable surface?

50% vison, 20% vestibular, 30% somatosensory

3 multiple choice options

what type of balance does CTSIB challenge?

steady state balance

3 multiple choice options

if a patient cannot orient on foam what is impaired?

somatosensory

if a patient cannot orient with eyes closed, what system do they rely on?

vision

What system contributes more in reactive balance?

somatosensory

1 multiple choice option

what is the most important system in proactive balance?

vison

3 multiple choice options

what interventions can you do for sensory integration?

activities that improve organization of muscle activity and activities that promote resilience on alternative senses

what types of tasks require more attention?

novel

How can you assess how cognition affects postural control?

have the patient perform the same task twice; once without and once with a cognitive dual task

when is dual tasking important to add to POC?

always. everyone should be able to perform dual task.