Abnormal somatosensory temporal discrimination in Parkinson’s disease: Pathophysiological correlates and role in motor control deficits

Ever since it was first described in 'An essay on the shaking palsy'(Parkinson, 1817), Parkinson's disease (PD) has been considered to be a motor disorder characterized by bradykinesia, rigidity, tremor at rest and postural instability (Berardelli et al., 2013; Postuma et al., 2015; Rodriguez-Oroz et al., 2009).However, approximately half of patients with PD complain of various sensory symptoms, including heaviness, numbness, coldness, a burning feeling, tingling, aching and severe pain (Koller, 1984).

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