Lévy-like diffusion in eye movements during spoken-language comprehension
| Number | 1564 |
|---|---|
| Year | 2009 |
| Drawer | 27 |
| Entry Date | 01/21/2010 |
| Authors | Stephen, D.G., Mirman, D., Magnuson, J.S., & Dixon, J.A. |
| Contact | |
| Publication | Physical Review, E 79, pp. 056114-1056114-6. |
| url | http://www.haskins.yale.edu/Reprints/HL1564.pdf |
| Abstract | This study explores the diffusive properties of human eye movements during a language comprehension task. In this task, adults are given auditory instructions to locate named objects on a computer screen. Although it has been convention to model visual search as standard Brownian diffusion, we find evidence that eye movements are hyperdiffusive. Specifically, we use comparisons of maximum-likehood fit as well standard deviation analysis and diffusion entropy analysis to show that visual search during language comprehension exhibits Lévy-like rather than Gaussian diffusion. |
| Notes |
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