Say it quietly, but we still do not know how Quiet Eye training works – comment on Vickers (original) (raw)
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Quiet-eye training, perceived control and performing under pressure
While previous studies have explored how quiet-eye (QE) training optimizes objective (visual attention) control in aiming tasks, this study examined whether QE training influences perceived (psychological) control and how changes in control beliefs correspond to changes in anxiety, visual attention and performance under pressure. Two groups of ten experienced soccer penalty takers followed either a QE training program or a practice program where penalty kicks were practiced with no instruction. Measurements of anxiety, gaze, performance and perceived control were recorded over baseline, retention and a competitive, ’shoot-out’ transfer condition. Not only did the QE training optimize aiming behavior and performance, but these changes in visual attention were mirrored in changes in control beliefs. QE participants significantly reduced their perceptions of outcome uncertainty (contingency) and increased their perceptions of shooting ability (competence) and ability to score and cope with the pressure (control), compared to practice participants. Furthermore, there was an overall and significant relationship between high perceptions of control beliefs and aiming behavior. Specifically, those participants with high control beliefs were more likely to aim optimally and further from the goalkeeper, whereas participants with low control beliefs experienced suboptimal and more centralized aiming behavior. These findings are the first to highlight the relationship between control beliefs, anxiety and attentional control in sport and offer further explanations regarding the benefits of QE training for performance under pressure.
Identifying the causal mechanisms of the quiet eye
Scientists who have examined the gaze strategies employed by athletes have determined that longer quiet eye (QE) durations (QED) are characteristic of skilled compared to less-skilled performers. However, the cognitive mechanisms of the QE and, specifically, how the QED affects performance are not yet fully understood. We review research that has examined the functional mechanism underlying QE and discuss the neural networks that may be involved. We also highlight the limitations surrounding QE measurement and its definition and propose future research directions to address these shortcomings. Investigations into the behavioural and neural mechanisms of QE will aid the understanding of the perceptual and cognitive processes underlying expert performance and the factors that change as expertise develops.
Gaze-contingent training enhances perceptual skill acquisition
The purpose of this study was to determine whether decision-making skill in perceptual-cognitive tasks could be enhanced using a training technique that impaired selective areas of the visual field. Recreational basketball players performed perceptual training over 3 days while viewing with a gaze-contingent manipulation that displayed either (a) a moving window (clear central and blurred peripheral vision), (b) a moving mask (blurred central and clear peripheral vision), or (c) full (unrestricted) vision. During the training, participants watched video clips of basketball play and at the conclusion of each clip made a decision about to which teammate the player in possession of the ball should pass. A further control group watched unrelated videos with full vision. The effects of training were assessed using separate tests of decision-making skill conducted in a pretest, posttest, and 2-week retention test. The accuracy of decision making was greater in the posttest than in the pretest for all three intervention groups when compared with the control group. Remarkably, training with blurred peripheral vision resulted in a further improvement in performance from posttest to retention test that was not apparent for the other groups. The type of training had no measurable impact on the visual search strategies of the participants, and so the training improvements appear to be grounded in changes in information pickup. The findings show that learning with impaired peripheral vision offers a promising form of training to support improvements in perceptual skill.
Additional Evidence for Pupil Size as a Measure of Within-Task Learning
Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 2019
This study sought to improve and extend previously conducted research that demonstrated the ability to capture within-task learning by measuring changes in an individual’s peak pupil size across a task. That research had two limitations that needed to be addressed: the use of pixels (an unstandardized pupil size measurement unit) as the primary metric and the lack of inclusion of a pre-stimulus baseline period. Ninety-two Navy and Marine Corps student pilots performed a spatial orientation aptitude test while their pupillary data were recorded. Notably, a new technique was used to convert pupil data from pixels to millimeters and a pre-stimulus baseline period was added between trials to capture tonic activation. Results revealed that peak pupil sizes significantly reduced across trials (r = -.80). The relationship was still very strong after accounting for a reduction in pupillary tonic activation across trials (r = -.59). These findings provide strong support for prior research th...
Simulation-based training utilising visual displays are common in many defence and civil domains. The performance of individuals in these tasks depends on their ability to employ effective visual strategies. Quantifying the performance of the trainees is vitally important when assessing training effectiveness and developing future training requirements. The approach, attitudes and processes of an individual’s learning varies from one to another. In this light, some visual strategies may be better suited to the dynamics of a task environment than others, the result of which could be observed in the superior performance outcomes of some individuals. In this study, eye gaze data is used to investigate the relationship between performance outcomes and visual strategies. In an attempt to emulate real operational settings, a challenging task environment using multiple targets that had minimal salient features was selected for the study. Eye gaze of participants performing a simulation-bas...