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Advanced measurement of saccadic eye movements – study of invariable and significant physiological features

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Walecki P. , Lasoń W. , Roterman-Konieczna I.

Bio-Algorithms and Med-Systems

2008

tom Vol. 4, no. 8

81--92

Precise measurements of rapid eye movements (saccades) are becoming more widespread. Because is important to answer the question whether how is a measurement error. This paper presents the measurement of about 3000 saccades in one person. It was performed in 14 times the same set of tests. For each of the 14 studies calculated mean and standard deviations of each parameter of the dynamics of eyeball movement, i.e. duration, peak velocity, average velocity, slope, sharpness, Q, and amplitude. These parameters were calculated depending on the amplitude, the type of the task and direction of eyeballs movement (left or right). The results show that the saccadic parameters are a good indicator to assess psychophysical functions.