Visual Scanning Strategies of Reflective, Impulsive, Fast-Accurate, and Slow-Inaccurate Children on the Matching Familiar Figures Test

1972 ◽  
Vol 43 (4) ◽  
pp. 1412 ◽  
Author(s):  
Ruth L. Ault ◽  
David E. Crawford ◽  
W. E. Jeffrey
1980 ◽  
Vol 24 (1) ◽  
pp. 317-319
Author(s):  
Anita V. Kak ◽  
James L. Knight

Text page-layout may influence both reading speed and comprehension. Available data obtained from low-speed readers suggests a superiority for two-column format over full-page format. As reading speed increases, visual scanning strategies change. The appropriateness of layouts designed for low-speed strategies are evaluated in the context of high-speed reading.


PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247061
Author(s):  
Christophe Lounis ◽  
Vsevolod Peysakhovich ◽  
Mickaël Causse

During a flight, pilots must rigorously monitor their flight instruments since it is one of the critical activities that contribute to update their situation awareness. The monitoring is cognitively demanding, but is necessary for timely intervention in the event of a parameter deviation. Many studies have shown that a large part of commercial aviation accidents involved poor cockpit monitoring from the crew. Research in eye-tracking has developed numerous metrics to examine visual strategies in fields such as art viewing, sports, chess, reading, aviation, and space. In this article, we propose to use both basic and advanced eye metrics to study visual information acquisition, gaze dispersion, and gaze patterning among novices and pilots. The experiment involved a group of sixteen certified professional pilots and a group of sixteen novice during a manual landing task scenario performed in a flight simulator. The two groups landed three times with different levels of difficulty (manipulated via a double task paradigm). Compared to novices, professional pilots had a higher perceptual efficiency (more numerous and shorter dwells), a better distribution of attention, an ambient mode of visual attention, and more complex and elaborate visual scanning patterns. We classified pilot’s profiles (novices—experts) by machine learning based on Cosine KNN (K-Nearest Neighbors) using transition matrices. Several eye metrics were also sensitive to the landing difficulty. Our results can benefit the aviation domain by helping to assess the monitoring performance of the crews, improve initial and recurrent training and ultimately reduce incidents, and accidents due to human error.


2016 ◽  
Vol 2016 ◽  
pp. 1-17 ◽  
Author(s):  
Sarah N. McClung ◽  
Ziho Kang

Characterization of air traffic controllers’ (ATCs’) visual scanning strategies is a challenging issue due to the dynamic movement of multiple aircraft and increasing complexity of scanpaths (order of eye fixations and saccades) over time. Additionally, terminologies and methods are lacking to accurately characterize the eye tracking data into simplified visual scanning strategies linguistically expressed by ATCs. As an intermediate step to automate the characterization classification process, we (1) defined and developed new concepts to systematically filter complex visual scanpaths into simpler and more manageable forms and (2) developed procedures to map visual scanpaths with linguistic inputs to reduce the human judgement bias during interrater agreement. The developed concepts and procedures were applied to investigating the visual scanpaths of expert ATCs using scenarios with different aircraft congestion levels. Furthermore, oculomotor trends were analyzed to identify the influence of aircraft congestion on scan time and number of comparisons among aircraft. The findings show that (1) the scanpaths filtered at the highest intensity led to more consistent mapping with the ATCs’ linguistic inputs, (2) the pattern classification occurrences differed between scenarios, and (3) increasing aircraft congestion caused increased scan times and aircraft pairwise comparisons. The results provide a foundation for better characterizing complex scanpaths in a dynamic task and automating the analysis process.


2018 ◽  
Vol 18 (10) ◽  
pp. 390
Author(s):  
Allison Carr ◽  
Andrea Cataldo ◽  
Hillary Hadley ◽  
Erik Arnold ◽  
James Tanaka ◽  
...  

Author(s):  
E. D. Megaw ◽  
James Richardson

In the past, investigations into the effects of target uncertainty on search times have been confined to tasks where the stimulus material is carefully structured. The results have been interpreted in terms of models of pattern recognition. In this paper target uncertainty was studied in tasks where subjects could exert greater freedom in determining their scanning strategies. With eye movement recording, it was established that skewed distributions of search times are obtained even when subjects adopt comparatively systematic strategies. There was no evidence that processing time, as reflected in eye fixation times, was generally lengthened with increase in target uncertainty. The observed effects of target uncertainty were discussed in relation to how subjects attempt to overcome the problem of searching simultaneously for targets of different conspicuity.


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