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Poster

Free vs constrained gaze in a multiple-object-tracking paradigm

MPG-Autoren
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Tanner,  TG
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons83847

Canto-Pereira,  LH
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons83839

Bülthoff,  HH
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

Externe Ressourcen

https://journals.sagepub.com/doi/pdf/10.1177/03010066070360S101
(Verlagsversion)

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Zitation

Tanner, T., Canto-Pereira, L., & Bülthoff, H. (2007). Free vs constrained gaze in a multiple-object-tracking paradigm. Poster presented at 30th European Conference on Visual Perception, Arezzo, Italy.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0013-CC5D-4
Zusammenfassung
The multiple-object-tracking (MOT) paradigm is useful for studying how observers allocate their attentional resources over several moving targets. Despite claiming no effect of eye movements on performance, previous studies provided no clear evidence for this assumption. We investigated how eye movements affect performance in an MOT task under different viewing conditions (free eye movements vs fixation control vs instruction to fixate but without monitoring). Subjects (N=4) performed an MOT task (120 trials per condition) while eye movements were recorded (250 Hz, erroramp;amp;lt;0.4°). Allowing free eye movements led to significantly higher performance (93) than with proper fixation control (75) and without monitoring (83, all pairwise t-tests: pamp;amp;lt;0.001). Thus, high performance in previous studies without fixation control could possibly be explained by fixation losses. On the basis of eye-movement data and subjective reports we suggest an alternative to t
radition
al multi
focal at
tention models. It predicts that observers group targets together and track a single amp;amp;lsquo;mentalamp;amp;lsquo; object.