TITLE:
Scaling Properties of Optokinetic Nystagmus Amplitude Sequence
AUTHORS:
Torbjørn Aasen
KEYWORDS:
Nystagmus, Optokinetic, Hurst Exponent, Information Processing
JOURNAL NAME:
Journal of Biomedical Science and Engineering,
Vol.13 No.11,
November
16,
2020
ABSTRACT: Optokinetic nystagmus (OKN) is rhythmic eye movements, back and forth, with a slow and fast phase when the eyes are presented for full-field visual stimulus. OKN was recorded in a healthy subject for four conditions, stripes moving 30°/s left and right and 60°/s left and right. In this paper, surrogate data analysis was applied to test the Hurst exponents for increasing time horizons for the integrated OKN amplitude sequences statistically against 100 shuffled sequences (i.e., the serial dependency of the original data sequences is broken by changing the order of the sequence). The result shows that the pattern of the OKN amplitude sequence scales statistically different (p