| Autor: |
Charles A. Coey, Sebastian Wallot, Michael J. Richardson, Guy Van Orden |
| Jazyk: |
angličtina |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Journal of Eye Movement Research, Vol 5, Iss 4 (2012) |
| Druh dokumentu: |
article |
| ISSN: |
1995-8692 |
| DOI: |
10.16910/jemr.5.4.5 |
| Popis: |
Past research has discovered fractal structure in eye movement variability and interpreted this result as having theoretical ramifications. No research has, however, investigated how properties of the eye-tracking instrument might affect the structure of measurement varia-bility. The current experiment employed fractal and multifractal methods to investigate whether an eye-tracker produced intrinsic random variation and how features of the data recording procedure affected the structure measurement variability. The results of this experiment revealed that the structure of variation from a fake eye was indeed random and uncorrelated in contrast to the fractal structure from a fixated, real human eye. Moreover, the results demonstrated that data-averaging generally changes the structure of variation, introducing spurious structure into eye movement variability. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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