Summarizing the Motion of Self-Propelled Cells: Applications to Sperm Motility
| Autor: | Sally D. Perreault, Robert E. Chapin, David B. Dunson, C. R. Weinberg |
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| Rok vydání: | 1999 |
| Předmět: |
Male
Statistics and Probability endocrine system Biometry In Vitro Techniques Models Biological General Biochemistry Genetics and Molecular Biology Motion (physics) Cell Movement Statistics Sperm movement Animals reproductive and urinary physiology Sperm motility Mathematics General Immunology and Microbiology Computers urogenital system Applied Mathematics General Medicine Displacement velocity Spermatozoa Sperm Rats Fractals Sperm Motility General Agricultural and Biological Sciences Biological system |
| Zdroj: | Biometrics. 55:537-543 |
| ISSN: | 0006-341X |
| Popis: | Summary. Proper characterization of the motion of spermatozoa is an important prerequisite for interpreting differences in sperm motility that might arise from exposure to toxicants. Patterns of sperm movement can be extremely complex. On the basis of an exponential model that relates the discretely approximated curvilinear velocity to the tracking rate, we develop a statistic that indexes the predictability of the path for individual sperm. We summarize the path of each sperm using this and two other statistics: (1) the path displacement velocity and (2) linearity of movement. We apply the method to a set of rat sperm tracks representative of both normal and abnormal motion characteristics. |
| Databáze: | OpenAIRE |
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