scholarly journals Visual Attention Saccadic Models Learn to Emulate Gaze Patterns From Childhood to Adulthood

2017 ◽  
Vol 26 (10) ◽  
pp. 4777-4789 ◽  
Author(s):  
Olivier Le Meur ◽  
Antoine Coutrot ◽  
Zhi Liu ◽  
Pia Rama ◽  
Adrien Le Roch ◽  
...  
2015 ◽  
Vol 9 (4) ◽  
Author(s):  
Songpo Li ◽  
Xiaoli Zhang ◽  
Fernando J. Kim ◽  
Rodrigo Donalisio da Silva ◽  
Diedra Gustafson ◽  
...  

Laparoscopic robots have been widely adopted in modern medical practice. However, explicitly interacting with these robots may increase the physical and cognitive load on the surgeon. An attention-aware robotic laparoscope system has been developed to free the surgeon from the technical limitations of visualization through the laparoscope. This system can implicitly recognize the surgeon's visual attention by interpreting the surgeon's natural eye movements using fuzzy logic and then automatically steer the laparoscope to focus on that viewing target. Experimental results show that this system can make the surgeon–robot interaction more effective, intuitive, and has the potential to make the execution of the surgery smoother and faster.


2020 ◽  
Author(s):  
Thomas Maran ◽  
Marco Furtner ◽  
Simon Liegl ◽  
Theo Ravet‐Brown ◽  
Lucas Haraped ◽  
...  

2018 ◽  
Author(s):  
Moritz Valentin Fischer

When we look at someone’s face, we automatically attend to the eye region. This phenomenon is, however, not entirely controllable. To investigate whether the controllability of this phenomenon differs between in- and outgroup eyes, an eye-tracking study with 52 Caucasian participants viewing Caucasian and Oriental stimulus faces was conducted. Participants were instructed to either look at the stimulus faces freely, or to avoid looking to either eyes or mouth. When looking freely, participants attended equally long to the eyes of both ethnicities. When instructed to avoid eyes or mouth, participants were able to suppress their gaze to both features entirely independent from the ethnicity of the displayed faces. Together, no different gaze patterns towards Oriental and Caucasian faces were found. The results imply that differential behaviour towards Oriental and Caucasian people can not be explained by differences in early stages of visual attention.


PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0250176
Author(s):  
Lauren A. Rutter ◽  
Daniel J. Norton ◽  
Timothy A. Brown

Decades of research have established a link between emotional disorders and attentional biases for emotional stimuli, but the relationship between symptom severity and visual attention is still not fully understood. Depression has been associated with increased attention towards dysphoric stimuli and decreased attention on positive stimuli (“negativity bias”), and some studies have also shown this trend in anxiety disorders. We examined eye fixation variables in 47 participants with emotional disorders completing an emotion recognition task. Results showed that depression severity was not associated with increased fixations on dysphoric stimuli, however, higher levels of generalized anxiety predicted increased fixations in the mouth region of sad and happy faces. Higher levels of social interaction anxiety predicted reduced fixations in the eye region of happy faces. While we did not replicate the negativity bias that has been shown in prior studies, our sample was highly comorbid, indicating the need to consider comorbidity, disorder severity, and the task itself when conducting research on visual attention in clinical samples. Additionally, more attention should be paid to the mouth region of emotional faces, as it may provide more specific information regarding the visual processing of emotions.


2012 ◽  
Vol 23 (12) ◽  
pp. 1524-1533 ◽  
Author(s):  
Daw-An Wu ◽  
Shinsuke Shimojo ◽  
Stephanie W. Wang ◽  
Colin F. Camerer

Hindsight bias is the tendency to retrospectively think of outcomes as being more foreseeable than they actually were. It is a robust judgment bias and is difficult to correct (or “debias”). In the experiments reported here, we used a visual paradigm in which performers decided whether blurred photos contained humans. Evaluators, who saw the photos unblurred and thus knew whether a human was present, estimated the proportion of participants who guessed whether a human was present. The evaluators exhibited visual hindsight bias in a way that matched earlier data from judgments of historical events surprisingly closely. Using eye tracking, we showed that a higher correlation between the gaze patterns of performers and evaluators (shared attention) is associated with lower hindsight bias. This association was validated by a causal method for debiasing: Showing the gaze patterns of the performers to the evaluators as they viewed the stimuli reduced the extent of hindsight bias.


2001 ◽  
Vol 15 (1) ◽  
pp. 22-34 ◽  
Author(s):  
D.H. de Koning ◽  
J.C. Woestenburg ◽  
M. Elton

Migraineurs with and without aura (MWAs and MWOAs) as well as controls were measured twice with an interval of 7 days. The first session of recordings and tests for migraineurs was held about 7 hours after a migraine attack. We hypothesized that electrophysiological changes in the posterior cerebral cortex related to visual spatial attention are influenced by the level of arousal in migraineurs with aura, and that this varies over the course of time. ERPs related to the active visual attention task manifested significant differences between controls and both types of migraine sufferers for the N200, suggesting a common pathophysiological mechanism for migraineurs. Furthermore, migraineurs without aura (MWOAs) showed a significant enhancement for the N200 at the second session, indicating the relevance of time of measurement within migraine studies. Finally, migraineurs with aura (MWAs) showed significantly enhanced P240 and P300 components at central and parietal cortical sites compared to MWOAs and controls, which seemed to be maintained over both sessions and could be indicative of increased noradrenergic activity in MWAs.


1997 ◽  
Vol 42 (6) ◽  
pp. 501-503
Author(s):  
Kyle R. Cave
Keyword(s):  

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