(1) Bilateral symmetrical Parkinson’s sign
Asymmetrical symptoms on both sides at onset
(2) Early gait disturbance
Gait is rarely affected at the onset of the disease
(3) Early onset of falls in the course of the disease
Late onset of falls
(4) Early onset of postural reflex disorder
Early postural reflexes are normal
(5) Broad-based gait
Walking in a broken gait
(6) Trunk in extended position
Forward flexion of the body during walking
(7) Walking with arm swing
Early disappearance of arm swing
(8) Surprised expression
Dull expression
(9)Transient eyes 3-5 times/min
Transient eyes 10 to 14 times/min
(10)Resting tremor is uncommon
Resting tremor is common
(11) Tonicity of trunk muscles is more pronounced than that of extremities
Tonicity of the extremity muscles is more obvious than that of the trunk
(12)No deformation of the hand
The hand is in a particular shape
(13) Poor or ineffective levodopa treatment
Levodopa treatment is effective
(14)Movement disorders caused by levodopa are rare
Levodopa-induced dyskinesia is more common
(15) There is usually no “efficacy loss” or “on-off” phenomenon
”Decline in efficacy” and “on-off” phenomena are common