[Changes in blink reflex (OM) after lesions of the nervous system in various locations]

Electrically evoked blink reflex (BR) as a one of the non-invasive methods is used to diagnose function of central nervous system, specially of brainstem. It seems that this method is not fully appreciated in neurological practice. On the basis of literature and own experience the authors present typical pictures of BR on EMG analysis related to the lesions of respective parts of reflex arc and suprasegmental structures involving pyramidal and extrapyramidal tracts.