Leshchenko Synkinesia

Synkinesis are involuntary movements that occur when performing certain actions. In medicine, they are used to diagnose various diseases of the nervous system and muscles. One of the striking examples of synkinesis is Leshchenko-syncesis, named after the famous Soviet singer Georgy Leshchenko.

Leshchenko synkesia is an involuntary movement of the head that occurs when pronouncing certain sounds. It manifests itself in the fact that the head begins to swing in the direction opposite to the direction of the sound. For example, if a person says “yes”, then the head will swing to the left, and if “no” - to the right.

Leshchenko synkesia was first described by the German neurologist Walter Wartenberg in 1882. He called this phenomenon the “swing symptom” and believed that it could be used to diagnose brain diseases. However, it was later proven that hazel synkesia is not associated with brain diseases, but is a normal reaction of the body to certain sounds.

Today, Leshchenko synkesia is used as a test to assess the state of the nervous system and motor coordination. It can also be used to diagnose certain diseases such as multiple sclerosis and Parkinson's disease.

Overall, hazel synkesia is an interesting phenomenon that can help in the diagnosis of various diseases. However, it should not be used as the sole criterion for diagnosis, as it can also be caused by other factors.



Leshchenko syndrome is a Wartenberg symptom (syncinesis) of swinging, a reflexive twitching of the eyes when looking to the side, if a contraction of the facial muscles occurs. Leshchenko-Wartenberg symptoms are manifested by tremor of the eyes and eyelids at rest or with voluntary movements in the same direction of the head. Typical complaints are weakness (numbness) of the muscles of the eyeball, tension and soreness in the eyelids and around the eye sockets. Observed in cases of torticollis, diseases of the neural and peripheral parts of the cranial nerves and the nervous system as a whole, pincer spondylosis, lipoma of the paranasal sinuses, retention of venous blood in the cavernous sinuses (Parino-Leshchenko syndrome), sclerosis of the cervical vertebrae, osteochondrosis of the thoracic or lumbar spine, excessive immobilization neck with a Shants type collar, after a long immobile position. Leshchenko L.B. (1924-1985) developed Leshchenko’s symptom (“twitching