Decomposition of saccadic pulse and step components by independent component analysis

Hsuan Hung Lin, Yung Fu Chen, Tainsong Chen, You Yun Lee

研究成果: Conference contribution

3 引文 斯高帕斯(Scopus)

摘要

Saccades are conjunctive and believed to be the fastest eye movements, which function to redirect the fovea of the retina to the object of interest. Main sequence relations have generally been used for describing the dynamics of the saccadic eye movements. Fourier analysis has also been used in quantitative investigation of saccades. A previous investigation used an inverse method from the Fourier transform of the padded and mirrored position profile and the impulse response of the system model to reconstruct the input signal (pulse and step) of a saccade. Recently, independent component analysis (ICA) has been used to decompose the transient and the sustained components of vergence eye movements, in which Scree test of the principal component analysis (PCA) was used to detect the number of independent components. In this study, we applied ICA for the decomposition of pulse and step components for saccades. The results show that the pulse component is far from rectangular; double-steps were also observed from the decomposed components. It was also found that the pulse component was activated before the step, which is matched with the pulse-step model proposed by Robinson. In conclusion, ICA suggests an alternate technique for the decomposition of saccadic components.

原文English
主出版物標題Proceedings of the International Conference on Mathematics and Engineering Techniques in Medicine and Biological Sciences, METMBS'04
編輯F. Valafar, H. Valafar
頁面124-128
頁數5
出版狀態Published - 2004 十二月 1
事件Proceedings of the International Conference on Mathematics and Engineering Techniques in medicine and Biological Sciences, METMBS'04 - Las Vegas, NV, United States
持續時間: 2004 六月 212004 六月 24

出版系列

名字Proceedings of the International Conference on Mathematics and Engineering Techniques in Medicine and Biological Sciences, METMBS'04

Other

OtherProceedings of the International Conference on Mathematics and Engineering Techniques in medicine and Biological Sciences, METMBS'04
國家/地區United States
城市Las Vegas, NV
期間04-06-2104-06-24

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

指紋

深入研究「Decomposition of saccadic pulse and step components by independent component analysis」主題。共同形成了獨特的指紋。

引用此