Application of rational power functions in analyses of saccadic velocity profiles

Kuo Hsien Huang, Yung Fu Chen, Hsuan Hung Lin, Tainsong Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The relationship between the product of peak velocity and duration (V mD) and saccadic amplitude is tightly correlated. The velocity profile of a saccade was referred as a triangular profile; whereas the saccadic amplitude is proportional to VmD. From our observation and derivation, in addition to the triangular profile, the rational power function can also be applied to explain the linear relationship between the saccadic amplitude and VmD. In this study, rational power functions were used for the analyses of saccadic dynamics. The results show that the rational power functions were fitted very well to the velocity profiles for three different amplitudes, i.e. 10°, 20°, and 30°, with correlation coefficients are all greater than 0.99. Significant differences in shape parameters between experimental and simulated profiles were also observed. Additionally, we have found that the minimum variance model proposed based on the minimization of variance of post-saccadic eye position cannot simulate velocity profiles matched with the experimental results. In conclusion, rational power functions are efficient in describing the saccadic velocity profiles. The shape parameters are also efficient for describing the dynamics of saccadic velocity profiles.

Original languageEnglish
Title of host publicationProceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
Pages4549-4552
Number of pages4
Publication statusPublished - 2005 Dec 1
Event2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 - Shanghai, China
Duration: 2005 Sep 12005 Sep 4

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume7 VOLS
ISSN (Print)0589-1019

Other

Other2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
CountryChina
CityShanghai
Period05-09-0105-09-04

Fingerprint

Saccades
Observation
Eye movements

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

Cite this

Huang, K. H., Chen, Y. F., Lin, H. H., & Chen, T. (2005). Application of rational power functions in analyses of saccadic velocity profiles. In Proceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 (pp. 4549-4552). [1615481] (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings; Vol. 7 VOLS).
Huang, Kuo Hsien ; Chen, Yung Fu ; Lin, Hsuan Hung ; Chen, Tainsong. / Application of rational power functions in analyses of saccadic velocity profiles. Proceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005. 2005. pp. 4549-4552 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings).
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Huang, KH, Chen, YF, Lin, HH & Chen, T 2005, Application of rational power functions in analyses of saccadic velocity profiles. in Proceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005., 1615481, Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, vol. 7 VOLS, pp. 4549-4552, 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005, Shanghai, China, 05-09-01.

Application of rational power functions in analyses of saccadic velocity profiles. / Huang, Kuo Hsien; Chen, Yung Fu; Lin, Hsuan Hung; Chen, Tainsong.

Proceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005. 2005. p. 4549-4552 1615481 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings; Vol. 7 VOLS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Huang KH, Chen YF, Lin HH, Chen T. Application of rational power functions in analyses of saccadic velocity profiles. In Proceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005. 2005. p. 4549-4552. 1615481. (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings).