Jörgen Eriksson
Kristoffer Holmqvist
Mikael Graffner
Email: publicera@lub.lu.se
+46 (0)46 222 0326
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Theses, dissertations and research publications (including journal articles, conference abstracts and books) from Lund University are collected in this database. Where possible, the option to download a full text document is available. It is also possible to search for Lund University student theses in the student theses database.
| Title | Sampling frequency and eye-tracking measures: how speed affects durations, latencies, and more |
| Author/s | Richard Andersson, Marcus Nyström, Kenneth Holmqvist |
| Department/s |
Cognitive Science
Humanities Lab |
| Full-text | Full text is not available in this archive |
| Alternative location (URL) | http://www.jemr.org/online/3/3... |
| Publication/Series | Journal of Eye Movement Research |
| Publishing year | 2010 |
| Volume | 3 |
| Issue | 3:6 |
| Pages | 1 - 12 |
| Document type | Journal article |
| Status | published |
| Quality controlled | yes |
| Language | English |
| Abstract English | We use simulations to investigate the effect of sampling frequency on common dependent variables in eye-tracking. We identify two large groups of measures that behave differently, but consistently. The effect of sampling frequency on these two groups of measures are explored and simulations are performed to estimate how much data are required to overcome the uncertainty of a limited sampling frequency. Both simulated and real data are used to estimate the temporal uncertainty of data produced by low sampling frequencies. The aim is to provide easy-to-use heuristics for researchers using eye-tracking. For example, we show how to compensate the uncertainty of a low sampling frequency with more data and post-experiment adjustments of measures. These findings have implications primarily for researchers using naturalistic setups where sampling frequencies typically are low. |
| Subject |
Mathematics and Statistics Technology and Engineering |
| Keywords | sampling frequency, two-point measures, simulation, saccadic latency, dependent variables, reliability, temporal error, one-point measures, eye-tracking measures |
| ISBN/ISSN/Other |
ISSN: 1995-8692 |
| Research group | Crypto and Security |
| Funder |
Vetenskapsrådet |
| Additional info | Project source code: http://wiki.humlab.lu.se/dokuwiki/doku.php?id=public:projects:2009sampfreq |
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