A movement disorder characterized by a lack of coordination of muscle movements resulting in the impaired performance of voluntary activities.

Awkwardness in motor behavior associated with loss of afferent information from the moving part or with loss of control mechanism of the cerebellum.

Being unable to control movement; symptoms include shaking and an unsteady walk.

Impairment of the ability to perform smoothly coordinated voluntary movements. This condition may affect the limbs, trunk, eyes, pharynx, larynx, and other structures. Ataxia may result from impaired sensory or motor function. Sensory ataxia may result from posterior column injury or PERIPHERAL NERVE DISEASES. Motor ataxia may be associated with CEREBELLAR DISEASES; CEREBRAL CORTEX diseases; THALAMIC DISEASES; BASAL GANGLIA DISEASES; injury to the RED NUCLEUS; and other conditions.

Lack of coordination of muscle movements resulting in the impairment or inability to perform voluntary activities. Causes include peripheral nerve disorders, posterior column injuries, cerebral and cerebellar disorders, basal ganglia disorders, and thalamic disorders.

Lack of coordination, physical or mental. (1) In neurology, refers to loss of muscular coordination. (2) In psychiatry, the term ataxia refers to lack of coordination between feelings and thoughts; seen in schizophrenia and in severe OCD.

Loss of muscle coordination.

(dyssynergia) A type of ataxia characterized by the impairment of the ability to smoothly perform the elements of a voluntary movement in the appropriate order and speed. With dyssynergia, a voluntary movement appears broken down into its component parts.

A disorder characterized by lack of coordination of muscle movements resulting in the impairment or inability to perform voluntary activities.

Ataxia describes a lack of muscle control or coordination of voluntary movements, such as walking or picking up objects. A sign of an underlying condition, ataxia can affect various movements and create difficulties with speech, eye movement and swallowing.

Ataxia, inability to coordinate voluntary muscular movements. In common usage, the term describes an unsteady gait. Most hereditary ataxias of neurological origin are caused by degeneration of the spinal cord and cerebellum; other parts of the nervous system are also frequently involved. The most...