2008
DOI: 10.16910/jemr.2.2.4
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Visual Fixation Durations and Saccade Amplitudes: Shifting Relationship in a Variety of Conditions

Abstract: Is there any relationship between visual fixation durations and saccade amplitudes in free exploration of pictures and scenes? In four experiments with naturalistic stimuli, we compared eye movements during early and late phases of scene perception. Influences of repeated presentation of similar stimuli (Experiment 1), object density (Experiment 2), emotional stimuli (Experiment 3) and mood induction (Experiment 4) were examined. The results demonstrate a systematic increase in the durations of fixations and a… Show more

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Cited by 99 publications
(74 citation statements)
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“…This result is confirmed by the mean face area (around 38 • 58, matching the first mode) and the mean distance between conversation partners (around 108, matching the second mode) present in our stimuli. Moreover, fixation durations were longer (around 420 ms) than usually reported in the literature (250-350 ms), which supports the idea of long explorations of a few regions of interest, like faces (Pannasch, Helmert, Herbold, Roth, & Henrik, 2008;Smith & Mital, 2013).…”
Section: Faces: Strong Gaze Attractorssupporting
confidence: 83%
“…This result is confirmed by the mean face area (around 38 • 58, matching the first mode) and the mean distance between conversation partners (around 108, matching the second mode) present in our stimuli. Moreover, fixation durations were longer (around 420 ms) than usually reported in the literature (250-350 ms), which supports the idea of long explorations of a few regions of interest, like faces (Pannasch, Helmert, Herbold, Roth, & Henrik, 2008;Smith & Mital, 2013).…”
Section: Faces: Strong Gaze Attractorssupporting
confidence: 83%
“…These findings were unexpected, because participants had no way of knowing which target size would be displayed next, due to the randomized presentation of scenes. Over the course of scene viewing, there is a tendency for fixation durations to increase and saccade amplitudes to decrease (Pannasch, Helmert, Roth, Herbold, & Walter, 2008;Unema, Pannasch, Joos, & Velichkovsky, 2005). In our experiments, search time equates to viewing time, such that the longer search times for small targets could potentially explain the longer fixation durations (but not the larger saccade amplitudes).…”
Section: Discussionmentioning
confidence: 71%
“…From viewing patterns (Yarbus, 1967) to average fixation durations (Mackworth and Morandi, 1967), how eye movement parameters behave are well-known. The knowledge of these basic parameters led to more complex research aiming to infer cognitive processes occurring during eye movements (Velichkovsky et al, 2002;Unema et al, 2005;Pannasch et al, 2008). However, with the stimuli diversity that aroused during the last decades, it became crucial to extend and adapt this knowledge to new stimuli types.…”
Section: Conclusion and Discussionmentioning
confidence: 99%
“…Previous research already highlighted the dynamic of eye movements (Unema et al, 2005;Pannasch et al, 2008;Pannasch and Velichkovsky, 2009). They found that the amplitude of saccades decreased while the duration of fixations increased over time.…”
Section: Introductionmentioning
confidence: 97%