Improper "measuring" of distances in voluntary movements. The limb arrests too soon or overshoots the mark when the subject attempts to make a specific movement. Dysmetria is a sign of damage to pathways connecting the cerebellum with the spinal cord and brainstem, or damage to parts of the cerebellum itself.
Impaired ability to perform rapid alternating movements.
Difficulty in performing movements due to problems with the interpretation and anticipation of the distance to be covered.
Voluntary control of limb movement, for example pointing to an object, is disturbed and inaccurate - 'past pointing'. Seen in subjects with spinocerebellar lesion.
An inability to fix the range of movement in muscular activity. Rapid and brisk movements are made with more force than necessary. Often seen in cerebellar disorders.
movements fall short of or go past the intended target
Inability to control range of movements. - A disturbance of coordination, caused by lesions in the cerebellum. A tendency to over- or under estimate the extent of motion needed to place an arm or leg in a certain position.
A disturbance of coordination, caused by lesions in the cerebellum. Dysmetria is usually characterized by a tendency to over- or underestimate the extent of motion needed to place an arm or leg in a certain position.
Inability to coordinate a movement of the extremities.
an inability to judge the distance, power, or speed of a movement
The inability to control the range of movement and the force of a muscular activity.
Gr. 'difficult measurement'. Refers to reduced motor control in cerebellar disease ( Ch. 22).
Dysmetria (Greek: "difficult to measure") is a symptom exhibited by patients after cerebellar injury or injury to proprioceptive nerves (nerves that carry information about the position of joints and extremities).