Context Affects Quiet Eye Duration and Motor Performance Independent of Cognitive Effort

© 2021 Human Kinetics. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1123/jsep.2020-0026Extensive literature has shown the effect of ‘Quiet Eye’ (QE) on motor performance. However, little attention has been paid to the context in which tasks are executed(independent of anxiety) and the mechanisms that underpin the phenomenon. Here, we aimed to investigate the effects of context (independent of anxiety) on QE and performance while examining if the mechanisms underpinning QE are rooted in cognitive effort. In this study, 21novice participants completed golf putts while pupil dilation, QE duration, and putting accuracy were measured. Results showed putting to win was more accurate compared to the control (no context) condition and QE duration was longer when putting to win or tie a hole compared to control. There was no effect of context on pupil dilation. Results suggest that,while the task was challenging, performance scenarios can enhance representativeness of practice without adding additional load to cognitive resources, even for novice performers.Peer reviewe

Sensory Manipulation as a Countermeasure to Robot Teleoperation Delays: System and Evidence

In the field of robotics, robot teleoperation for remote or hazardous environments has become increasingly vital. A major challenge is the lag between command and action, negatively affecting operator awareness, performance, and mental strain. Even with advanced technology, mitigating these delays, especially in long-distance operations, remains challenging. Current solutions largely focus on machine-based adjustments. Yet, there's a gap in using human perceptions to improve the teleoperation experience. This paper presents a unique method of sensory manipulation to help humans adapt to such delays. Drawing from motor learning principles, it suggests that modifying sensory stimuli can lessen the perception of these delays. Instead of introducing new skills, the approach uses existing motor coordination knowledge. The aim is to minimize the need for extensive training or complex automation. A study with 41 participants explored the effects of altered haptic cues in delayed teleoperations. These cues were sourced from advanced physics engines and robot sensors. Results highlighted benefits like reduced task time and improved perceptions of visual delays. Real-time haptic feedback significantly contributed to reduced mental strain and increased confidence. This research emphasizes human adaptation as a key element in robot teleoperation, advocating for improved teleoperation efficiency via swift human adaptation, rather than solely optimizing robots for delay adjustment.Comment: Submitted to Scientific Report

Psychophysiological Responses to Data Visualization and Visualization Effects on Auditors’ Judgments and Audit Quality

We conduct experiments with practicing Big 4 auditors and business students in order to investigate the psychophysiological responses to Big Data visualizations and the effects of different visualization techniques on auditor judgment and ultimately audit quality. More specifically, the first experiment with students examines whether visualizations can be designed to increase the level of a users’ arousal. Such increases in arousal have the capacity to yield significant benefits to the audit profession by drawing auditors’ attention to important patterns in data and promoting the evaluation of these patterns during evidence evaluation. Results of the first experiment using cognitive pupillometry and eye gaze measurement indicate that different visualization techniques produce significant differences in the level of arousal without interfering with information evaluation efficiency. The second experiment then investigates whether visualizations that were shown to promote higher and lower levels of arousal have differential effects on auditor judgments and audit quality. In addition, the second experiment investigates whether the reliability of the data sources underlying visualizations affect auditors’ judgments. Results from the second experiment indicate that visualizations that increase arousal enhance auditors’ ability to recognize disconfirming evidence and incorporate this evidence into their decisions. That is, auditors who view visualizations of disconfirming evidence that are designed to promote arousal recommend greater reductions to management estimates of reported revenue and increase their budgeted audit hours more than auditors who view visualizations that promote less arousal. In addition, auditors who view visualizations that increase arousal are more likely to attend to the reliability of data used to create the visualizations. Overall, the experiments reveal that understanding the root causes of different visualization techniques on arousal and auditor judgment present multiple opportunities to enhance audit quality

The impact of alerting designs on air traffic controller's eye movement patterns and situation awareness

This research investigated controller’ situation awareness by comparing COOPANS’s acoustic alerts with newly designed semantic alerts. The results demonstrate that ATCOs’ visual scan patterns had significant differences between acoustic and semantic designs. ATCOs established different eye movement patterns on fixations number, fixation duration and saccade velocity. Effective decision support systems require human-centred design with effective stimuli to direct ATCO’s attention to critical events. It is necessary to provide ATCOs with specific alerting information to reflect the nature of of the critical situation in order to minimize the side-effects of startle and inattentional deafness. Consequently, the design of a semantic alert can significantly reduce ATCOs’ response time, therefore providing valuable extra time in a time-limited situation to formulate and execute resolution strategies in critical air safety events. The findings of this research indicate that the context-specified design of semantic alerts could improve ATCO’s situational awareness and significantly reduce response time in the event of Short Term Conflict Alert activation which alerts to two aircraft having less than the required lateral or vertical separation

Tracking Eye Movements in Sight Translation – the comprehension process in interpreting

[[abstract]]While the three components of interpreting have been identified as comprehension, reformulation, and production, the process of how these components occur has remained relatively unexplored. The present study employed the eye-tracking method to investigate the process of sight translation, a mode of interpreting in which the input is written rather than oral. The research focused especially on the comprehension component in sight translation, addressed the validity of the horizontal and the vertical perspectives of interpreting, and ascertained whether reading ahead exists in sight translation. Eye movements of 18 interpreting students were recorded during silent reading of a Chinese speech, reading aloud a Chinese speech, and Chinese to English sight translation. Since silent reading consists of the comprehension component while reading aloud consists of the comprehension and production components, the two tasks served as a basis of comparison for investigating comprehension in sight translation. The findings suggested that sight translation and silent reading were no different in the initial stage of reading, as reflected by similar first fixation duration, single fixation duration, gaze duration, fixation probability, and refixation probability. Sight translation only began to demonstrate differences from silent reading after first-pass reading, as shown by higher rereading time and rereading rate. Also, reading ahead occurred in 72.8% of cases in this experiment, indicating the overlap between reading and oral production in Chinese to English sight translation. The results supported the vertical perspective in interpreting as well as the claim of reading ahead. Implications for interpreter training are to attach more importance to paraphrasing skills and to focus more on the similarities between sight translation and simultaneous interpreting.