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The quiet eye without a target: the primacy of visual information processing
André Klostermann1, Ralf Kredel1, Ernst-Joachim Hossner1
1Institute of Sport Science, Department of Movement Science, University of Bern.
Journal of Experimental Psychology. Human Perception and Performance
|October 15, 2014
Summary
The quiet eye (QE) phenomenon enhances motor performance by supporting cognitive processes. This study reveals that QE
Area of Science:
- Cognitive Psychology
- Motor Control
- Human Performance
Background:
- The quiet eye (QE) phenomenon, characterized by prolonged final fixations before movement initiation, is known to enhance motor performance.
- Existing research suggests QE supports information processing, particularly response selection and movement parameterization, within an information-processing framework.
- The role of QE in earlier cognitive stages, such as stimulus identification, remains less understood.
Purpose of the Study:
- To investigate whether the quiet eye (QE) mechanism influences stimulus identification processes.
- To examine the relationship between QE duration, visual processing demands, and performance in a targeting task.
- To differentiate between cognitive and non-cognitive (e.g., posture-based) explanations for QE effects.
Main Methods:
- Two experiments were conducted using a targeting task with manipulated visual processing demands and QE durations.
- Experiment 1 assessed performance with preserved positional information.
- Experiment 2 compared performance under full versus no target visibility conditions to manipulate information processing time.
Main Results:
- A performance-enhancing effect of QE was observed exclusively under conditions of increased visual processing demands.
- QE duration did not impact performance when positional information was readily available (Experiment 1).
- QE efficiency became dependent on information processing time when visual information was limited and processing intervals were short (Experiment 2).
Conclusions:
- The findings support the hypothesis that the quiet eye (QE) phenomenon is primarily rooted in cognitive processes, specifically information processing.
- The results contradict alternative explanations, such as posture-based mechanisms, for QE effects.
- QE plays a crucial role in optimizing cognitive functions, including stimulus identification, which subsequently enhances motor performance.
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