Visual Search Strategies in Experienced and Inexperienced Gymnastic Coaches

2002 ◽  
Vol 95 (3) ◽  
pp. 901-902 ◽  
Author(s):  
F. J. Moreno ◽  
Raúl Reina ◽  
Vicente Luis ◽  
Rafael Sabido
Keyword(s):  
Visual Search ◽  
Eye Tracking ◽  
Tracking System ◽  
Search Strategies ◽  
Video Sequences ◽  
Novice Group ◽  
Search Patterns ◽  
Visual Fixations ◽  
Different Levels

The visual search strategies employed by gymnastic coaches with different levels of expertise were investigated. Expert ( n = 3) and novice coaches ( n = 3) watched 9 video sequences of 3 gymnastic techniques and were required to highlight errors in performance. Visual search patterns were monitored by an ASL-5000SE eye-tracking system during observation. Expert participants showed longer and fewer visual fixations than the novice group.

scholarly journals Identifying visual search patterns in eye gaze data; gaining insights into physician visual workflow

2016 ◽  
Vol 23 (6) ◽  
pp. 1180-1184 ◽  
Author(s):  
Allan Fong ◽  
Daniel J Hoffman ◽  
A Zachary Hettinger ◽  
Rollin J Fairbanks ◽  
Ann M Bisantz
Keyword(s):  
Visual Search ◽  
Eye Tracking ◽  
Health Information ◽  
Information Technologies ◽  
Tracking System ◽  
Specific Area ◽  
Search Pattern ◽  
First Order ◽  
Search Patterns ◽  
Search For Information

Abstract Importance and Objectives As health information technologies become more prevalent in physician workflow, it is increasingly important to understand how physicians are using and interacting with these systems. This includes understanding how physicians search for information presented through health information technology systems. Eye tracking technologies provide a useful technique to understand how physicians visually search for information. However, analyzing eye tracking data can be challenging and is often done by measuring summative metrics, such as total time looking at a specific area and first-order transitions. Methods In this paper, we propose an algorithmic approach to identify different visual search patterns. We demonstrate this approach by identifying common visual search patterns from physicians using a simulated prototype emergency department patient tracking system. Results and Conclusions We evaluate and compare the visual search pattern results to first-order transition results. We discuss the benefits and limitations of this approach and insights from this initial evaluation.

Analyzing Visual Search Techniques using Eye Tracking for a Computerized Provider Order Entry (CPOE) Task

2017 ◽  
Vol 61 (1) ◽  
pp. 691-695
Author(s):  
Kylie M. Gomes ◽  
Sara L. Riggs
Keyword(s):  
Visual Search ◽  
Eye Tracking ◽  
Search Strategy ◽  
Healthcare Professionals ◽  
Alternative Methods ◽  
Order Entry ◽  
Patient Identification ◽  
Computerized Provider Order Entry ◽  
Search Patterns ◽  
Tracking Technology

A challenge with current Computerized Provider Order Entry (CPOE) systems includes patient identification errors, i.e. when an incorrect patient’s record is referenced. These types of errors can lead to patient safety issues such as administrating medication to the incorrect patient. Eye tracking technology can provide insights into the visual search patterns of healthcare professionals and shed light on how patient identification errors occur. This study investigates whether there are differences in visual search metrics, response time, and accuracy when searching for a patient by two identifiers – name or date of birth – from a list of patients with similar names. The findings revealed there was no effect of search strategy on speed or accuracy; however, there was an effect on fixation duration and number of fixations within specific areas of interest. Across both search strategies, there were more fixations on names. This demonstrates the importance of a patient’s name regardless of search strategy and is an important consideration to take into account if multiple patients share the same name. This study shows that eye tracking technology can be used to investigate the visual search patterns employed during patient identification and provide insights as to how patient identification errors occur. It also demonstrates a need to develop alternative methods to prevent patient identification errors apart from relying on healthcare professionals to verify patient identity.

scholarly journals Visual search characteristics of precise map reading by orienteers

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7592 ◽  
Author(s):  
Yang Liu
Keyword(s):  
Visual Search ◽  
Behavioral Responses ◽  
Route Planning ◽  
Skill Levels ◽  
Planning Time ◽  
Map Reading ◽  
Novice Group ◽  
Movement Data ◽  
Search Patterns

This article compares the differences in eye movements between orienteers of different skill levels on map information searches and explores the visual search patterns of orienteers during precise map reading so as to explore the cognitive characteristics of orienteers’ visual search. We recruited 44 orienteers at different skill levels (experts, advanced beginners, and novices), and recorded their behavioral responses and eye movement data when reading maps of different complexities. We found that the complexity of map (complex vs. simple) affects the quality of orienteers’ route planning during precise map reading. Specifically, when observing complex maps, orienteers of higher competency tend to have a better quality of route planning (i.e., a shorter route planning time, a longer gaze time, and a more concentrate distribution of gazes). Expert orienteers demonstrated obvious cognitive advantages in the ability to find key information. We also found that in the stage of route planning, expert orienteers and advanced beginners first pay attention to the checkpoint description table. The expert group extracted information faster, and their attention was more concentrated, whereas the novice group paid less attention to the checkpoint description table, and their gaze was scattered. We found that experts regarded the information in the checkpoint description table as the key to the problem and they give priority to this area in route decision making. These results advance our understanding of professional knowledge and problem solving in orienteering.

scholarly journals Impact of Working Experience on Image Perception and Image Evaluation Approaches in Stroke Imaging: Results of an Eye-Tracking Study

2019 ◽  
Vol 191 (09) ◽  
pp. 836-844
Author(s):  
Sara Kammerer ◽  
Christoph Schülke ◽  
Martin Dominik Leclaire ◽  
Wolfram Schwindt ◽  
Aglae Velasco Gonzalez ◽  
...  
Keyword(s):  
Eye Tracking ◽  
Tracking System ◽  
Cerebrovascular Diseases ◽  
Ct Images ◽  
Lesion Detection ◽  
Professional Experience ◽  
Systematic Observation ◽  
Image Perception ◽  
Imaging Results ◽  
Different Levels

Purpose Higher rates of missed pathologies, caused by a lack of professional experience or systematic search, suggest that a methodical approach to radiological analysis can be learned. Thus, the aim of this study is to investigate the efficiency of different principles of screening stroke CTs for cerebrovascular diseases between radiologists and neuroradiologists with different levels of experience in relation to professional experience. Methods A set of anonymous CT images of 20 patients, with a suspected stroke, was individually presented to 12 radiologists with different levels of professional experience. Meanwhile, their fixation position was recorded by an eye-tracking system. For statistical analysis, the interobserver variability and accuracy of lesion detection were evaluated, taking the individual level of professional experience into account. Results The sensitivity of the observer depends on the professional experience, also determined by a systematic observation sequence and knowledge of the course of the disease. The duration of eye fixation with inexperienced assessors was significantly longer for conspicuous findings, while experienced assessors were more likely to fix clinically relevant regions. The retention time of ocular fixation in important pathological findings did not differ significantly between those groups. Conclusion Our results indicate that experienced radiologists are reducing the number of missed findings through a systematic approach and targeted inspection of important regions. Through raising the awareness of analyzing CT images in systematic patterns, physicians at all levels of experience seem to be able to improve their performance. Key points:  Citation Format

scholarly journals Comportamento visual e qualidade da tomada de decisão no voleibol

2016 ◽  
Vol 18 (6) ◽  
pp. 638 ◽  
Author(s):  
Henrique De Oliveira Castro ◽  
Gibson Moreira Praça ◽  
Gustavo De Conti Teixeira Costa ◽  
Gustavo Ferreira Pedrosa ◽  
Pablo Juan Greco
Keyword(s):  
Eye Tracking ◽  
Parametric Analysis ◽  
Tracking System ◽  
T Test ◽  
Visual Behavior ◽  
Chi Square ◽  
Volleyball Players ◽  
Chi Square Test ◽  
Visual Fixations

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n6p638 This study aims to verify the visual behavior using the analysis of both quantity and duration of visual fixation and the quality of the DM in volleyball players and athletes from other sports in extreming attacking (EA), cental attack (CA), setting (SE) and blocking (BL) situations. The visual behavior was analyzed during the evaluation of volleyball scenes with an eye-tracking system. The first decision the volunteer voiced was determined as his solution for the scene presented and it was used for analyzing the DM quality. For the quantity of visual fixations, the independent t-test was used to compare groups in the following situtations, EA, SE and BL. For analyzing the quality of DM, the chi-square test of proportions was used. Moreover, for the analysis of the duration and number of visual fixations, the independent t test was addopet (or Mann-Whitney test when some of the assumptions were not met for parametric analysis). Significantly higher values were observed on duration of visual fixations in athletes from other sports comparing to volleyball players at CA (p = 0.042). The DM were significantly different in EA (p = 0.024) and CA (p = 0.001) between groups, showing higher frequency of correct answers for the volleyball players. We conclude that volleyball players perform faster fixations in situations of CA and take more correct decisions in attacking situation (EA and CA) compared to athletes from other sports.

scholarly journals Influence of scene structure and content on visual search strategies

2017 ◽  
Vol 14 (132) ◽  
pp. 20170406 ◽  
Author(s):  
Tatiana A. Amor ◽  
Mirko Luković ◽  
Hans J. Herrmann ◽  
José S. Andrade
Keyword(s):  
Visual Search ◽  
Eye Tracking ◽  
High Sensitivity ◽  
Search Strategies ◽  
Model Parameters ◽  
Artificial Eye ◽  
Search Tasks ◽  
Scene Structure ◽  
Visual Landscape

When searching for a target within an image, our brain can adopt different strategies, but which one does it choose? This question can be answered by tracking the motion of the eye while it executes the task. Following many individuals performing various search tasks, we distinguish between two competing strategies. Motivated by these findings, we introduce a model that captures the interplay of the search strategies and allows us to create artificial eye-tracking trajectories, which could be compared with the experimental ones. Identifying the model parameters allows us to quantify the strategy employed in terms of ensemble averages, characterizing each experimental cohort. In this way, we can discern with high sensitivity the relation between the visual landscape and the average strategy, disclosing how small variations in the image induce changes in the strategy.

scholarly journals Eye Tracking Measures Reveal How Changes in the Design of Displays for Augmentative and Alternative Communication Influence Visual Search in Individuals With Down Syndrome or Autism Spectrum Disorder

2019 ◽  
Vol 28 (4) ◽  
pp. 1649-1658 ◽  
Author(s):  
Krista M. Wilkinson ◽  
Marissa Madel
Keyword(s):  
Autism Spectrum Disorder ◽  
Down Syndrome ◽  
Visual Search ◽  
Eye Tracking ◽  
Augmentative And Alternative Communication ◽  
Eye Gaze ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Alternative Communication ◽  
Search Patterns

Purpose This research note reports on how small changes to the organization of a simulated display for augmentative and alternative communication influence the visual search patterns of individuals with Down syndrome or autism, as measured through eye tracking technologies. Prior research had demonstrated that clustering symbols by their internal color facilitates search and reduces attention to distracters, in children with typical development. This research systematically replicated the procedures with individuals with Down syndrome or autism spectrum disorder. Method Participants engaged in a visual search task on a monitor with embedded automated eye tracking technology. Patterns of gaze during search were measured via this technology. Results Participants were significantly faster to fixate on the target and to select it with the mouse when the like-colored symbols were clustered together. In addition, participants were significantly less likely to fixate on distracters in the clustered condition. No group differences were found. Conclusions Small changes to the organization of the simulated augmentative and alternative communication display resulted in substantial differences in eye gaze and speed to find a target. Of greatest clinical import is the finding that clustering symbols reduced attention to distracters, given that individuals with disabilities may be prone to distraction.

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