A syntactic method for analysis of nystagmus and smooth pursuit eye movements

Abstract

Eye movements are studied in neurophysiology, neurology, ophthalmology, and otology both clinically and in research. In this article, a syntactic method for recognition of horizontal nystagmus and smooth pursuit eye movements is presented. Eye movement signals, which are recorded, for example, electro-oculographically, are transformed into symbol strings of context free grammars. These symbol strings are fed to an LR ( k) parser, which detects eye movements as sentences of the formal languages produced by these LR ( k) grammars. Since LR ( k) grammars have been used, the time required by the whole recognition method is directly proportional to the number of symbols in an input string.