Ballistic and corrective movements on an aiming task
Ballistic and corrective movements on an aiming task
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瞄准任务中的弹道运动和校正运动
作者：
K. Flowers
六名帕金森氏病患者，六名原发性或意向性震颤患者，和九名对照组进行了测试，使用操纵杆控制和示波器显示的一步跟踪任务。震颤受试者在进行初始弹道运动之后进行（有缺陷的）纠正方面与对照组相似，并且比对照组花费更长的时间以小幅度跳跃到达目标，但不是更大的跳跃。帕金森患者的情况正好相反，他们只能通过缓慢的矫正动作来获得目标。这表明，正常人可用的两种运动在这些疾病中选择性受损;帕金森病中的弹道运动和其他疾病中的小幅度矫正运动。
Six patients with Parkinson's disease, six patients with essential or intention tremor, and nine controls were tested on a step-tracking task using a joystick control and oscilloscope display. Tremor subjects resembled controls in making an initial ballistic movement followed by (defective) corrections, and took longer than the controls to reach the target with small amplitude jumps, but not with larger ones. The reverse was true for parkinsonian subjects, who acquired the target with slow corrective movements only. This suggests that two kinds of movement available to normal people are selectively impaired in these disorders; ballistic movements in Parkinson's disease and small amplitude corrective movements in the other disorders.