Planotopokinesia

Planotopokinesia (planotopokinesia; from Latin planum - “surface, plane” + Greek topos - “place” + kinesis - “movement”; synonym - Marie’s symptom) is a violation of spatial coordination of movements, manifested in the patient’s inability to make movements along a plane, perpendicular to the direction of view.

With planotopokinesia, the patient cannot perform precise movements of the hand in the horizontal plane if he looks up or down. For example, if you ask the patient to look up and at the same time touch the tip of his nose with his fingertips, he will not be able to do this. The same thing happens if the patient is asked to look down and touch his forehead with his finger.

Planotopokinesia is most often observed with lesions of the cerebellum and its connections with the vestibular nuclei of the brain stem. This symptom allows you to diagnose cerebellar disorders.

Planotopokinesia (Latin planum - plane, Latin topos - place, Greek kinesis - movement) is a neurological symptom that is characterized by simultaneous movement of the eyes and head in the same direction. It can manifest itself both in brain pathology and in cerebrovascular accidents.

Planotopokinesia occurs as a result of impaired coordination of movements between the visual and vestibular parts of the brain. In this case, the patient feels that his head and eyes are moving in the same direction, although in fact he is not moving. This may be due to impaired cerebral blood flow, brain injury, or other neurological diseases.

The symptom of planotopokinesia can be detected during neuropsychological testing, as well as when observing the patient while performing various tasks. If this symptom is detected, it is necessary to conduct additional examination to determine the cause of its occurrence.