Chinese Journal of Tissue Engineering Research ›› 2013, Vol. 17 ›› Issue (24): 4553-4560.doi: 10.3969/j.issn.2095-4344.2013.24.026

Previous Articles    

Research and application progress of visual fixation component separation

Wei Wei1, Shi Geng-hu2, Li Yu-tang2, Zhang Bing2, Gao Chuang3   

  1. 1 College of Science, Huazhong Agricultural University, Wuhan  430070, Hubei Province, China
    2 School of Psychology, Central China Normal University, Wuhan  430070, Hubei Province, China
    3 Key Laboratory of Adolescent Cyberpsychology and Behavior, Minstry of Education (Central China Normal University), Wuhan  430070, Hubei Province, China
  • Received:2013-03-30 Revised:2013-04-06 Online:2013-06-11 Published:2013-06-11
  • Contact: Gao Chuang, M.D., Associate professor, Key Laboratory of Adolescent Cyberpsychology and Behavior, Minstry of Education (Central China Normal University), Wuhan 430070, Hubei Province, China gaochuang@phy.ccnu.edu.cn
  • About author:Wei Wei☆, M.D., Associate professor, College of Science, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China Shi Geng-hu, Studying for master’s degree, School of Psychology, Central China Normal University, Wuhan 430070, Hubei Province, China 365711146@qq.com
  • Supported by:

    the National Key Technology Research & Development Program of China, No. 2011BAK08B03, 2012*

PDF

603

Abstract:

BACKGROUND: Studies have shown the eye movement during visual fixation not only includes the noise signal from the nervous system, but also contains the information of cognitive processing. Fixation components and their functions attracted attention increasingly.
OBJECTIVE: To review the research progress and its present situation of visual fixation component separation.
METHODS: We retrieved the articles in PebMed database and Google Scholar with the computer using the key words of “visual fixation, fixational eye movement, tremor, drifts, micro saccades”. And we also made a reference to some corresponding monograph. The articles with repeated, unconcerned or obsolete contents were eliminated, and 64 articles were included in the final analysis.
RESULTS AND CONCLUSION: Visual fixation is a phenomenon of human visual perception in which the individual is maintaining gaze in a stationary object. There are three types of eye movement during fixation: tremor, drifts and micro saccades, and they are vital for maintenance of visibility. Recently, discussions are focused on the contribution of these three eye movements on the visual perception, mainly including preventing fading and visual system correction. In addition, micro saccades can be sharply separated by computing the estimator of eye movement velocity thresholds. Further researches on the neurophysiological basis of fixational eye movements and the development of techniques, especially the recording of neural activity and the retinal stabilization methods, will deepen our understanding of the phenomenon of visual fixation.
 

Key words: tissue construction, tissue construction review, visual fixation, visual perception, fixational eye movement, remor, drifts, micro saccades, component separation, ministerial grants-supported paper

CLC Number: