Posturography is the technique used to quantify postural control in upright stance in either static or dynamic conditions. Among them, Computerized dynamic posturography , also called test of balance , is a non-invasive specialized clinical assessment technique used to quantify the central nervous system adaptive mechanisms involved in the control of posture and balance, both in normal and abnormal conditions . Due to the complex interactions among sensory, motor, and central processes involved in posture and balance, CDP requires different protocols in order to differentiate among the many defects and impairments which may affect the patient's posture control system. Thus, CDP challenges it by using several combinations of visual and support surface stimuli and parameters.