Abstract
The recent introduction of inexpensive eyetrackers has opened up a wealth of opportunities for researchers to study attention in interactive tasks. No software package has previously been available to help researchers exploit those opportunities. We created “the pyeTribe,” a software package that offers, among others, the following features: first, a communication platform between many eyetrackers to allow for simultaneous recording of multiple participants; second, the simultaneous calibration of multiple eyetrackers without the experimenter’s supervision; third, data collection restricted to periods of interest, thus reducing the volume of data and easing analysis. We used a standard economic game (the public goods game) to examine the data quality and demonstrate the potential of our software package. Moreover, we conducted a modeling analysis, which illustrates how combining process and behavioral data can improve models of human decision-making behavior in social situations. Our software is open source.
Highlights
The recent introduction of inexpensive eyetrackers has opened up a wealth of opportunities for researchers to study attention in interactive tasks
Eyetrackers are, not new, but the critical reduction in price is allowing for new experimental setups to study, among other things, attention in interactive decision-making tasks
We presented a software package designed to help researchers exploit the advantages of multiple eyetrackers while conducting interactive decision-making experiments
Summary
The recent introduction of inexpensive eyetrackers has opened up a wealth of opportunities for researchers to study attention in interactive tasks. Researchers have moved from studying choices alone to a more process-focused perspective (Camerer & Johnson, 2004; Fehr & Schmidt, 1999; SchulteMecklenbeck, Kühberger, & Ranyard, 2011; Wang, Spezio, & Camerer, 2010) They have begun using various tools to track attention. Other companies, including SMI (www.smivision.com), are beginning to offer trackers in a much lower prize range (typically around $500, as of 2016) With this substantial reduction in prices, laboratories are able to acquire several units, enabling the simultaneous eyetracking of multiple participants. No available software package allows researchers to construct an experiment to simultaneously collect behavioral and eyetracking data from (many) interacting participants.
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