Eye Tracking: Pupillometry
Pupilometry can potentially reveal important insights concerning cognitive processes and emotional responses during task performance. However, in order to generate meaningful pupillometry data from video-based eye trackers, there are a number of important methodological issues that need to be understood. These include the pupil foreshortening effect, the importance of baseline pupil size measurements, and controlling for a range of non-cognitive influences on pupil size, such as luminance changes. In this advanced workshop, participants will learn how to carry out effective pupillometry research using SR Research EyeLink eye trackers.
The course will focus on providing hands on, practical advice, and will cover the recording, analysing and reporting of pupillometry data, using worked examples and example data sets. Two EyeLink 1000 Plus systems will be available. It is important that participants bring a laptop that has the latest versions of Experiment Builder / Data Viewer installed. Temporary Experiment Builder / Data Viewer software license keys will be provided for people who are not able to bring their own.
Why Study?
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Understand the potential (and limitations) of pupillometry as a research tool.
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Discover the range of methodological issues that need to be taken into consideration in pupillometry research.
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Learn how to convert EyeLink pupil data to mm.
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Learn how to use Experiment Builder to create a basic pupillometry task.
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Gain hands on experience in using Data Viewer to analyse and interpret pupillometry data, using trial, sample and time series (binning) reports.
Schedule
09:00 - 09:30: Registration / Welcome
09:30 - 10:30: Introduction to pupillometry research: An outline of the theoretical and physiological bases for pupillometry research. This session will include detailed discussion of important methodological issues such as the pupil foreshortening effect, and other non-cognitive influences on pupil size.
10:30 - 11:00: Tea / Coffee Break
11:00 - 12:30: Set up and Calibration for pupilometry research. This practical session will cover setting up and calibrating participants using the EyeLink 1000 Plus, The session will include advice on how to maximise and measure data quality, and how to convert pupil area data to mm.
12:30 - 13:30: Lunch
13:30 - 15:00: Implementing a basic pupillometry task in Experiment Builder: The session will use worked examples, and include instructions on creating isoluminant baseline stimuli.
15:00 – 15:30: Tea / Coffee Break
15:30 - 17:00: Analysing pupillometry data with Data Viewer. Instruction in using Trial Reports, Sample Reports and Time Series (Binning) Reports to analyse data from pupillometry research.