Sampling frequency and eye-tracking measures : how speed affects durations, latencies, and more
Andersson, Richard LU ; Nyström, Marcus LU
and Holmqvist, Kenneth
LU
(2010)
In Journal of Eye Movement Research
3(3:6).
p.1-12
- Abstract
- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1670061
- author
- Andersson, Richard
LU
; Nyström, Marcus
LU
and Holmqvist, Kenneth
LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- two-point measures, sampling frequency, simulation, saccadic latency, dependent variables, reliability, temporal error, one-point measures, eye-tracking measures
- in
- Journal of Eye Movement Research
- volume
- 3
- issue
- 3:6
- pages
- 1 - 12
- publisher
- European Group for Eye Movement Research
- external identifiers
-
- wos:000208816900006
- ISSN
- 1995-8692
- DOI
- 10.16910/jemr.3.3.6
- language
- English
- LU publication?
- yes
- additional info
- Project source code: http://wiki.humlab.lu.se/dokuwiki/doku.php?id=public:projects:2009sampfreq
- id
- 510d90dc-33ba-44aa-8146-c7ae66309866 (old id 1670061)
- alternative location
- https://bop.unibe.ch/index.php/JEMR/article/download/2300/3496
- date added to LUP
- 2016-04-04 09:15:39
- date last changed
- 2022-10-14 13:09:42
@article{510d90dc-33ba-44aa-8146-c7ae66309866,
abstract = {{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.}},
author = {{Andersson, Richard and Nyström, Marcus and Holmqvist, Kenneth}},
issn = {{1995-8692}},
keywords = {{two-point measures; sampling frequency; simulation; saccadic latency; dependent variables; reliability; temporal error; one-point measures; eye-tracking measures}},
language = {{eng}},
number = {{3:6}},
pages = {{1--12}},
publisher = {{European Group for Eye Movement Research}},
series = {{Journal of Eye Movement Research}},
title = {{Sampling frequency and eye-tracking measures : how speed affects durations, latencies, and more}},
url = {{http://dx.doi.org/10.16910/jemr.3.3.6}},
doi = {{10.16910/jemr.3.3.6}},
volume = {{3}},
year = {{2010}},
}