When instructed to touch his nose and then touch your index finger positioned about 18 inches away,Mr.M misjudges the distance and overshoots.This response is referred to as

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Dysmetria,impaired judgment of distance,range,speed,and force of movement,is abnormal.Dyssynergy involves the lack of coordinated action of the muscle groups.Dysdiadochokinesia is the inability to perform rapid alternating movements.Apraxia is an impairment in the ability to convert an intended and understood act into motor activity; for example,the inability to convert the intended speech into the motor act of speech.

When Instructed to Touch His Nose and Then Touch Your