Computerized Dynamic posturography (CDP) includes isolation and quantification of:
As defined, CDP is the only method validated by controlled research studies to isolate the functional contributions of vestibular inputs, visual inputs, somatosensory inputs, central integrating mechanisms, and neuromuscular system outputs for postural and balance control.
During CDP testing, the patient stands on a movable, force-sensing support surface and within a movable visual surround. Movements of the support surface and/or visual surround, under precise control of a computer, are used to modify the sensory conditions and/or to impose unexpected perturbations. The computer processes the signals from the force-sensing surface to quantify the patient’s postural stability under modified sensory conditions, as well as the patient’s motor reactions to the unexpected perturbations.
CDP includes three protocols:
• The Sensory organization test (SOT) assesses the patient’s ability to balance using visual, vestibular, and proprioceptive information and to appropriately suppress disruptive visual and/or proprioceptive information under sensory conflict conditions.
Synonym: dynamic platform posturography.