Online Removal of Eye Movement and Blink EEG Artifacts Using a High-Speed Eye Tracker

2012 ◽  
Vol 59 (8) ◽  
pp. 2103-2110 ◽  
Author(s):  
B. Noureddin ◽  
P. D. Lawrence ◽  
G. E. Birch
Keyword(s):  
Eye Movement ◽  
High Speed ◽  
Eye Tracker ◽  
Eeg Artifacts

scholarly journals The Influence of Articulatory Suppression on Reading Among Chinese Children with Developmental Dyslexia: An Eye-Movement and Case-Control Study

2020 ◽  
Author(s):  
Xiuhong Li ◽  
Weidong Li ◽  
Buyun Liu ◽  
Jinxin Zhang ◽  
Jingwen Ma ◽  
...  
Keyword(s):  
Eye Movement ◽  
Developmental Dyslexia ◽  
Reading Ability ◽  
High Speed ◽  
Articulatory Suppression ◽  
Reading Speed ◽  
Chinese Children ◽  
Phonological Loop ◽  
Eye Tracker ◽  
Core Deficit

Abstract Background: In Western countries, phonological processing deficit was regard as a core deficit in developmental dyslexia (DD). As Chinese is a logographic language, it’s still controversial whether and how the articulatory suppression influences reading ability and processing of Chinese children with DD. The study aimed to examine how the phonological loop influences reading ability and processing in Chinese children with DD.Methods: This study included 30 children with DD and 37 children without DD. Two types of articles (i.e., scenery prose and narrative story) and two conditions (under the conditions of articulatory-suppression and silent reading) were applied. An eye-link II High-Speed Eye Tracker was used to track a series of eye-movement parameters. The data was analyzed by the linear Mixed-Effects model. Results: Compared with children without DD, Children with DD had lower reading achievement (RA), frequency of saccades (FS) and frequency of fixations (FF), longer reading time (RT) and average fixation duration (AFD), slower reading speed (RS), shorter average saccade amplitude (ASA) and fixation distance (FD), more number of fixations (NF) and number of saccades (NS). There were significant interactions between participant group and articulatory suppression on RT and FD. We also observed interaction effects between article types and articulatory suppression on RA, AFD, ASA, and FS.Conclusion: Children DD exhibit abnormal phonological loop and eye movements while reading. The role of the articulatory suppression on reading varies with the presentation of DD and the article type.

scholarly journals The Influence of Articulatory Suppression on Reading Among Chinese Children With Developmental Dyslexia: An Eye-Movement Study

2021 ◽  
Vol 9 ◽  
Author(s):  
Xiuhong Li ◽  
Weidong Li ◽  
Buyun Liu ◽  
Jinxin Zhang ◽  
Jingwen Ma ◽  
...  
Keyword(s):  
Eye Movement ◽  
Developmental Dyslexia ◽  
Reading Ability ◽  
High Speed ◽  
Articulatory Suppression ◽  
Reading Speed ◽  
Chinese Children ◽  
Phonological Loop ◽  
Eye Tracker ◽  
Movement Parameters

Objective: The study aimed to examine how the phonological loop influences reading ability and processing in Chinese children with developmental dyslexia (DD).Methods: This study included 30 children with DD and 37 children without DD. Two types of articles (i.e., scenery prose and narrative story) and two conditions (under the conditions of articulatory-suppression and silent reading) were applied. An eye-link II High-Speed Eye Tracker was used to track a series of eye-movement parameters. The data were analyzed by the linear Mixed-Effects model.Results: Compared with children without DD, Children with DD had lower reading achievement (RA), frequency of saccades (FS) and frequency of fixations (FF), longer reading time (RT) and average fixation duration (AFD), slower reading speed (RS), shorter average saccade amplitude (ASA) and fixation distance (FD), more number of fixations (NF), and number of saccades (NS). There were significant interactions between participant group and articulatory suppression on RT and FD. We also observed interaction effects between article types and articulatory suppression on RA, AFD, ASA, and FS.Conclusion: Children DD exhibit abnormal phonological loop and eye movements while reading. The role of articulatory suppression on reading varies with the presentation of DD and the article type.

scholarly journals Ocular Motor Behavior Monitor in Intermittent Exotropia by Eye Tracker

2021 ◽  
Author(s):  
Xiaoxiao Cai ◽  
Zidong Chen ◽  
Yanping Liu ◽  
Zitian Liu ◽  
Daming Deng ◽  
...  
Keyword(s):  
Eye Movement ◽  
High Speed ◽  
Motor Behavior ◽  
Maximum Deviation ◽  
Ocular Motor ◽  
Eye Tracker ◽  
Intermittent Exotropia ◽  
Average Deviation ◽  
Significant Difference ◽  
Deviation Degree

Abstract Purpose: Eye movement in intermittent exotropia (IXT) patients is characterized by viability and uncertainty, however, conventional strabismus inspection methods cannot reflect these important qualities. Here, we sought to study the ocular motor behavior of IXT under different viewing conditions by eye tracker.Methods: Sixty-one IXT patients (33 males and 28 females) and 15 age-matched control participants were recruited for this study. An eye tracker equipped with a high-speed camera and MATLAB software was employed to monitor and record eye movement as well as eye position in included subjects with 3D shutter glasses at a normal reading distance (57 cm).Results: By using an eye tracker, our data showed that 90% of the included IXT patients lost their control and showed exotropia in 1.5±2.1s. The average deviation degree measured by the eye tracker was 32.9±11.5△, ranging from 6 to 50△, and reached its maximum deviation degree at 36.9±12.4△, with a mean time of 2±1.5s. Although a significant difference exists in the strabismus quantification between the prism test and the eye tracker, the test results obtained from these two methods were positively correlated. Moreover, by using the eye tracker, the fixation instability of IXT patients could be easily recorded and analyzed. In addition, the included IXT patients were divided into three types according to their ocular motor behavior as monitored by an eye tracker.Conclusion: Eye trackers could not only provide continuous, precise and effective strabismus assessments but also analyze ocular motor behavior over a period of time in IXT patients.

scholarly journals A Fast and Effective System for Analysis of Optokinetic Waveforms with a Low-Cost Eye Tracking Device

Healthcare ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 10
Author(s):  
Chong-Bin Tsai ◽  
Wei-Yu Hung ◽  
Wei-Yen Hsu
Keyword(s):  
Eye Movements ◽  
Eye Tracking ◽  
Eye Movement ◽  
Low Cost ◽  
Saccadic Eye Movements ◽  
Slow Phase ◽  
Eye Tracker ◽  
Effective System ◽  
Tracking Device ◽  
Traditional Approaches

Optokinetic nystagmus (OKN) is an involuntary eye movement induced by motion of a large proportion of the visual field. It consists of a “slow phase (SP)” with eye movements in the same direction as the movement of the pattern and a “fast phase (FP)” with saccadic eye movements in the opposite direction. Study of OKN can reveal valuable information in ophthalmology, neurology and psychology. However, the current commercially available high-resolution and research-grade eye tracker is usually expensive. Methods & Results: We developed a novel fast and effective system combined with a low-cost eye tracking device to accurately quantitatively measure OKN eye movement. Conclusions: The experimental results indicate that the proposed method achieves fast and promising results in comparisons with several traditional approaches.

Eye Movements as a Means to Evaluate Operation Interface of Flat Knitting Machine

2014 ◽  
Vol 607 ◽  
pp. 664-668
Author(s):  
Zhi Hui Liu ◽  
Sheng Ze Wang ◽  
Qiong Shen ◽  
Jia Jun Feng
Keyword(s):  
Eye Movements ◽  
Eye Movement ◽  
Objective Evaluation ◽  
Layout Design ◽  
Eye Tracker ◽  
Heat Maps ◽  
Machine Operation

This study investigates the characteristics of eye movements by operating flat knitting machine. For the objective evaluation purpose of the flat knitting machine operation interface, we arrange participants finish operation tasks on the interface, then use eye tracker to analyze and evaluate the layout design. Through testing of the different layout designs, we get fixation sequences, the count of fixation, heat maps, and fixation length. The results showed that the layout design could significantly affect the eye-movement, especially the fixation sequences and the heat maps, the count of fixation and fixation length are always impacted by operation tasks. Overall, data obtained from eye movements can not only be used to evaluate the operation interface, but also significantly enhance the layout design of the flat knitting machine.

scholarly journals Test and evaluation of advertising effect based on EEG and eye tracker

2019 ◽  
Vol 10 (1) ◽  
pp. 14-18
Author(s):  
Lingfeng Wang
Keyword(s):  
Eye Movement ◽  
Marketing Communication ◽  
Eye Tracker ◽  
Advertising Effect ◽  
Test And Evaluation ◽  
Advertising Strategies ◽  
Theoretical Significance ◽  
Implementation Effect

Abstract As a means of marketing communication, advertisements have been applied in the course of enterprise operation. However, in practice, there are many problems with the implementation effect of specific advertisements, so the test and evaluation of the effectiveness of advertising have important practical and theoretical significance. Therefore, this paper uses the EEG and eye movement technology to study the EEG change and eye movement of subjects when viewing advertisements and to conduct processing and analysis of the collected EEG and eye movement indexes. It is expected to provide advertisers with valuable advertising strategies based on the analysis results of EEG change and eye movement experiment.

Modern Furniture Color Image Based on Eye Tracking

2012 ◽  
Vol 157-158 ◽  
pp. 410-414 ◽  
Author(s):  
Ji Feng Xu ◽  
Han Ning Zhang
Keyword(s):  
Eye Tracking ◽  
Eye Movement ◽  
Color Image ◽  
Vision System ◽  
Human Vision ◽  
Relative Importance ◽  
Human Vision System ◽  
Eye Tracker ◽  
Color Features ◽  
The Relationship

The relationship between modern furniture color image and eye tracking has been of interest to academics and practitioners for many years. We propose and develop a new view and method exploring these connections, utilizing data from a survey of 31 testees’ eye tracking observed value. Using Tobii X120 eye tracker to analyze eye movement to furniture samples in different hue and tones colors, we highlight the relative importance of the effect of furniture color on human vision system and show that the connections between furniture color features with color image.

Spatial Attention Shifts in Addition and Subtraction Arithmetic: Evidence of Eye Movement

Perception ◽  
2019 ◽  
Vol 48 (9) ◽  
pp. 835-849 ◽  
Author(s):  
Rongjuan Zhu ◽  
Xuqun You ◽  
Shuoqiu Gan ◽  
Jinwei Wang
Keyword(s):  
Eye Movement ◽  
Spatial Attention ◽  
Spatial Association ◽  
Eye Tracker ◽  
Addition And Subtraction ◽  
Attention Shifts

Recently, it has been proposed that solving addition and subtraction problems can evoke horizontal shifts of spatial attention. However, prior to this study, it remained unclear whether orienting shifts of spatial attention relied on actual arithmetic processes (i.e., the activated magnitude) or the semantic spatial association of the operator. In this study, spatial–arithmetic associations were explored through three experiments using an eye tracker, which attempted to investigate the mechanism of those associations. Experiment 1 replicated spatial–arithmetic associations in addition and subtraction problems. Experiments 2 and 3 selected zero as the operand to investigate whether these arithmetic problems could induce shifts of spatial attention. Experiment 2 indicated that addition and subtraction problems (zero as the second operand, i.e., 2 + 0) do not induce shifts of spatial attention. Experiment 3 showed that addition and subtraction arithmetic (zero as the first operand, i.e., 0 + 2) do facilitate rightward and leftward eye movement, respectively. This indicates that the operator alone does not induce horizontal eye movement. However, our findings support the idea that solving addition and subtraction problems is associated with horizontal shifts of spatial attention.

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