A syntactic method for analysis of saccadic eye movements

摘要

A syntactic method is presented which takes advantage of a context free grammar and an LR(k) parser in order to recognize saccadic eye movements from digitalized eye position signals. The method functions in linear time and may be applied in real time systems. Saccades, which are voluntary eye movements, are measured in several areas of medicine for diagnosis and research. After the analog-digital conversion the signal is transformed into a symbol string. A valid saccade beginning is first looked for and the complete saccade is then recognized by applying the parser. An example of the application of the method is demonstrated on photoelectrically recorded data.