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Sampling frequency ...
Sampling frequency and eye-tracking measures : how speed affects durations, latencies, and more
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- Andersson, Richard (författare)
- Lund University,Lunds universitet,Humanistlaboratoriet,Fakultetsgemensamma verksamheter,Humanistiska och teologiska fakulteterna,Kognitionsvetenskap,Filosofiska institutionen,Institutioner,Lund University Humanities Lab,Units,Joint Faculties of Humanities and Theology,Cognitive Science,Department of Philosophy,Departments
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- Nyström, Marcus (författare)
- Lund University,Lunds universitet,Humanistlaboratoriet,Fakultetsgemensamma verksamheter,Humanistiska och teologiska fakulteterna,Lund University Humanities Lab,Units,Joint Faculties of Humanities and Theology
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- Holmqvist, Kenneth (författare)
- Lund University,Lunds universitet,Humanistlaboratoriet,Fakultetsgemensamma verksamheter,Humanistiska och teologiska fakulteterna,Lund University Humanities Lab,Units,Joint Faculties of Humanities and Theology
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(creator_code:org_t)
- 2010-09-13
- 2010
- Engelska.
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Ingår i: Journal of Eye Movement Research. - : University of Bern. - 1995-8692. ; 3:3:6, s. 1-12
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- SAMHÄLLSVETENSKAP -- Medie- och kommunikationsvetenskap -- Mänsklig interaktion med IKT (hsv//swe)
- SOCIAL SCIENCES -- Media and Communications -- Human Aspects of ICT (hsv//eng)
Nyckelord
- two-point measures
- sampling frequency
- simulation
- saccadic latency
- dependent variables
- reliability
- temporal error
- one-point measures
- eye-tracking measures
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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