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We present experimental findings from a dual eye-tracking study that illustrate the effect of different ways of sharing se- lection in remote pair-programming scenario. Forty pairs of engineering students had to complete several program under- standing tasks. The cross-recurrence of gaze, i.e. how much programmers look at the same spot within a short time span, varies with speech and selection. Gaze recurrence is higher during spoken episodes compared to silent episodes. Gaze recurrence is highest during spoken selections, when the se- lection is broadcast to both collaborators either as a dual se- lection (the programmers can each select their own portion of text) or a shared selection (programmers share a single selection). Broadcast selections serve as indexing sites for the selector as they attract non-selector’s gaze shortly af- ter they become visible. Spoken selections are more precise than silent selections which suggest their deictic function.
Frédéric Courbin, Georges Meylan, Gianluca Castignani, Maurizio Martinelli, Matthias Wiesmann, Yi Wang, Richard Massey, Fabio Finelli, Marcello Farina
Nicola Braghieri, Filippo Fanciotti