Eye movement measures of performance on visual search tasks: Equating the baselines of task performance

2004 ◽  
Author(s):  
Bradley Chase ◽  
Erik Viirre ◽  
Julie Kwak ◽  
Shawn Wing ◽  
Karl Van Orden
2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Enkelejda Kasneci ◽  
Alex A. Black ◽  
Joanne M. Wood

To date, few studies have investigated the eye movement patterns of individuals with glaucoma while they undertake everyday tasks in real-world settings. While some of these studies have reported possible compensatory gaze patterns in those with glaucoma who demonstrated good task performance despite their visual field loss, little is known about the complex interaction between field loss and visual scanning strategies and the impact on task performance and, consequently, on quality of life. We review existing approaches that have quantified the effect of glaucomatous visual field defects on the ability to undertake everyday activities through the use of eye movement analysis. Furthermore, we discuss current developments in eye-tracking technology and the potential for combining eye-tracking with virtual reality and advanced analytical approaches. Recent technological developments suggest that systems based on eye-tracking have the potential to assist individuals with glaucomatous loss to maintain or even improve their performance on everyday tasks and hence enhance their long-term quality of life. We discuss novel approaches for studying the visual search behavior of individuals with glaucoma that have the potential to assist individuals with glaucoma, through the use of personalized programs that take into consideration the individual characteristics of their remaining visual field and visual search behavior.


2003 ◽  
Vol 89 (6) ◽  
pp. 3340-3343 ◽  
Author(s):  
Neil G. Muggleton ◽  
Chi-Hung Juan ◽  
Alan Cowey ◽  
Vincent Walsh

Recent physiological recording studies in monkeys have suggested that the frontal eye fields (FEFs) are involved in visual scene analysis even when eye movement commands are not required. We examined this proposed function of the human frontal eye fields during performance of visual search tasks in which difficulty was matched and eye movements were neither necessary nor required. Magnetic stimulation over FEF modulated performance on a conjunction search task and a simple feature search task in which the target was unpredictable from trial to trial, primarily by increasing false alarm responses. Simple feature search with a predictable target was not affected. The results establish that human FEFs are critical to visual selection, regardless of the need to generate a saccade command.


2017 ◽  
Author(s):  
Hoppe David ◽  
Constantin A. Rothkopf

AbstractThe capability of directing gaze to relevant parts in the environment is crucial for our survival. Computational models based on ideal-observer theory have provided quantitative accounts of human gaze selection in a range of visual search tasks. According to these models, gaze is directed to the position in a visual scene, at which uncertainty about task relevant properties will be reduced maximally with the next look. However, in tasks going beyond a single action, delayed rewards can play a crucial role thereby necessitating planning. Here we investigate whether humans are capable of planning more than the next single eye movement. We found evidence that our subjects’ behavior was better explained by an ideal planner compared to the ideal observer. In particular, the location of the first fixation differed depending on the stimulus and the time available for the search. Overall, our results are the first evidence that our visual system is capable of planning.


2012 ◽  
Author(s):  
Stephen R. Mitroff ◽  
Adam T. Biggs ◽  
Matthew S. Cain ◽  
Elise F. Darling ◽  
Kait Clark ◽  
...  

1998 ◽  
Vol 6 (3) ◽  
pp. 227-232 ◽  
Author(s):  
Philippe Stivalet ◽  
Yvan Moreno ◽  
Joëlle Richard ◽  
Pierre-Alain Barraud ◽  
Christian Raphel
Keyword(s):  

Perception ◽  
1992 ◽  
Vol 21 (4) ◽  
pp. 465-480 ◽  
Author(s):  
Jeremy M Wolfe ◽  
Alice Yee ◽  
Stacia R Friedman-Hill

2010 ◽  
Vol 10 (7) ◽  
pp. 1317-1317
Author(s):  
B. Richard ◽  
D. Ellemberg ◽  
A. Johnson

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