Effect of sensory motor training on the upper limb function of patients with Parkinson's disease

INTERVENTION: Control group: does not receive this training. Intervention 1: Intervention group: receives 10 sessions of sensory‐motor training (5 sessions per week, 3 to 5 hours per session). Intervention 2: Control group: does not receive this training. Intervention group: receives 10 sessions of sensory‐motor training (5 sessions per week, 3 to 5 hours per session). Rehabilitation CONDITION: Extrapyramidal and movement disorders Parkinson's disease. ; Extrapyramidal and movement disorders PRIMARY OUTCOME: Extroceptive and proprioceptive sense of hand and upper extremity. Timepoint: before and after intervention. Method of measurement: Weinsten Enhanced Sensory test, Properioception and Kinesthesia test, Wrist Position test. Motor function of hand and upper extremity. Timepoint: before and after intervention. Method of measurement: Box and Block, and Purdue Pegboard tests. SECONDARY OUTCOME: Discrimative sense of hand and upper extremity. Timepoint: before and after intervention. Method of measurement: Two‐point discrimination test, Haptic Recognition Object test,Hand Active Sensation test, Stregnosis test. INCLUSION CRITERIA: INCLUSION CRITERIA:Having Parkinson's disease according to neurologist diagnosis; Having the disease progression level of 1 to 3 according to Hoehn and Yahr Scale; Having an acceptable level of cognitive function, i.e. score of more than 24 on the Mini Mental Status Examination (MMSE); To be eligible for sensory‐motor retraining (Having the light touch sensation at the level of acceptable mono‐filaments, i.e. 4.31 and above in the fingertips and no severe problems of proprioception and discrimination sensation); Not having orthopedic problems (neurologic damages, fracture, tendon injuries), rheumatologic diseases (rheumatoid arthritis, osteoarthritis), neurologic diseases (stroke, multiple sclerosis) and other diseases such as diabetes, hepatitis and burns; Having the ability to read and write. Exclusion Criteria: Lack of patient cooperation during the test; Not return for the testing after the intervention; Entering to the nonpharmacologic on‐off phase of the disea