Eye-tracking data Variable definitions, with some clarifications, based on SensoMotoric Instruments. (2014). BeGaze manual: Version 3.4. (p. 248-295) Trial Trial number Stimulus Stimulus name Export.Start.Trial.Time..ms. Trial start time, normally zero. Starting time set to 3000 ms for all trials as a fixation cross was displayed during the first 3000 ms. Export.End.Trial.Time..ms. Trial end time Participant Participant ID Color Color of area of interest (AOI) as defined in the BeGaze software Eye.L.R. Which eye fixated AOI.Name Name of area of interest as defined in the BeGaze software AOI.Group Name of area of interest grouping as defined in the BeGaze software. NA as no grouping of AOIs was done. AOI.Scope Scope of AOI - local or global AOI.Order AOI order number. The order in which the region of interest appeared in the stimulus sentence. AOI.Size..px. Size of the AOI in pixel - the part overlaying the stimulus is taking into consideration, parts outside of the stimulus area are ignored. AOI.Coverage... AOI size in comparison to Stimulus size Time.to.First.Appearance..ms. Time to first appearance Appearance.Count Sum of all appearances of one AOI within one trial of one participant Visible.Time..ms. Time stimulus was displayed in ms Visible.Time... Time stimulus was displayed Entry.Time..ms. Time in ms until AOI was entered Sequence Order of gaze hits into the AOIs based on Entry Time (lowest Entry Time = First in Sequence. Net.Dwell.Time.ms. Sum of durations for all gaze data that hit the AOI in ms Dwell.Time..ms. Starts at the moment the AOI is fixated and ends at the moment the last fixation on the AOI ends for each visit of the AOI = sum of durations from all fixations and saccades that hit the AOI. Normalized.Dwell..ms.Coverage. Glance.Duration..ms. Saccade duration in ms for entering the object + sum of all fixation durations and saccade durations before the eyes begin to leave the AOI = dwell + duration of saccade entering AOI. Diversion.Duration..ms. Sum of saccade durations in ms for entering and leaving the object + sum of all fixation durations and saccade durations before the eyes begin to leave the AOI = glance duration + duration of saccade leaving AOI. First.Fixation.Duration..ms. Duration of the first fixation to hit the AOI (ms). Glances.Count Number of glances to a target (saccades coming from outside) within a certain period (increment the counter each time a fixation hits the AOI, if not hit before). Revisits Glances count - 1. Fixation.Count Number of fixations inside the AOI. Net.Dwell.Time.... Sum of saccades and fixations inside the AOI (ms) / (end time - start time in ms) Dwell.Time.... Sum of saccades and fixations inside the AOI / (end time - start time) (%) Fixation.Time..ms. Sum of the fixation durations inside the AOI (ms) Fixation.Time.... Fixation time (ms) / (end time - start time) Average.Fixation.Duration..ms. Fixation time average (ms)