fixation duration
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2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yasaman Gholami ◽  
Seyed Hassan Taghvaei ◽  
Saeid Norouzian-Maleki ◽  
Rouhollah Mansouri Sepehr

PurposeThe purpose of the study is to quantitatively evaluate the role of landscape values and factors in urban parks experimentally based on neuroscience.Design/methodology/approachIn the first step, ten major parks were selected out of 59 regional and trans-regional parks in Tehran for field study analysis. Next, considering the diversity and abundance of landscape elements in the selected parks, Mellat Park was chosen for the case study.FindingsThe fixation duration of the factors has an average correlation coefficient of 0.5865, −0.5035 and −0.5125 for the overall sketch map, quality and accuracy, respectively. The results indicated that the “quality of people's cognitive maps” has a direct relation to fixation duration on “human-made factors” and an inverse relation to fixation duration on “natural factors” and “human activities and behavioral factors” in the park.Practical implicationsThe results can pave the way for further research in the interdisciplinary fields of landscape architecture and neuroscience.Originality/valueLegibility is a superior quality of urban spaces that profoundly affect how people perceive and behave.


2022 ◽  
Vol 2022 ◽  
pp. 1-8
Author(s):  
Yuzhou Tang ◽  
Xiaodang Peng ◽  
Shiyong Xu ◽  
Mingju Bai ◽  
Lifang Lin ◽  
...  

In order to study the gaze behavior characteristics of drivers in mountainous road sections with limited sight distance, the real vehicle test is carried out by using Smart Eye Pro 5.7 noninvasive eye tracker. Combined with the sight distance change rate theory, 6 typical test representative mountainous sections are selected to study the gaze distribution law and gaze duration of drivers in different mountainous sections. The research shows that when the driver drives on the test section with the most unfavorable sight distance of 44 m, 50 m, and 56 m, the fixation characteristics of “from far to near” are significant, and the long fixation duration accounts for a large proportion of the driver. When the driver drives on the section with the most unfavorable sight distance of more than 70 m, i.e., the sight distance change rate of less than 1.33, the fixation characteristics of “from far to near” disappear. The driver’s fixation stability increases, the fixation freedom increases, and the proportion of medium and long fixation duration decreases. The data analysis provides a theoretical basis for drivers to pass safely in mountainous sections.


Author(s):  
Li Zhu ◽  
Gaochao Cui ◽  
Yan Li ◽  
Jianhai Zhang ◽  
Wanzeng Kong ◽  
...  

AbstractWith the popularity of smartphones and the pervasion of mobile apps, people spend more and more time to interact with a diversity of apps on their smartphones, especially for young population. This raises a question: how people allocate attention to interfaces of apps during using them. To address this question, we, in this study, designed an experiment with two sessions (i.e., Session1: browsing original interfaces; Session 2: browsing interfaces after removal of colors and background) integrating with an eyetracking system. Attention fixation durations were recorded by an eye-tracker while participants browsed app interfaces. The whole screen of smartphone was divided into four even regions to explore fixation durations. The results revealed that participants gave significantly longer total fixation duration on the bottom left region compared to other regions in the session (1) Longer total fixation duration on the bottom was preserved, but there is no significant difference between left side and right side in the session2. Similar to the finding of total fixation duration, first fixation duration is also predominantly paid on the bottom area of the interface. Moreover, the skill in the use of mobile phone was quantified by assessing familiarity and accuracy of phone operation and was investigated in the association with the fixation durations. We found that first fixation duration of the bottom left region is significantly negatively correlated with the smartphone operation level in the session 1, but there is no significant correlation between them in the session (2) According to the results of ratio exploration, the ratio of the first fixation duration to the total fixation duration is not significantly different between areas of interest for both sessions. The findings of this study provide insights into the attention allocation during browsing app interfaces and are of implications on the design of app interfaces and advertisements as layout can be optimized according to the attention allocation to maximally deliver information.


Author(s):  
Juni Nurma Sari ◽  
Lukito Edi Nugroho ◽  
Paulus Insap Santosa ◽  
Ridi Ferdiana

E-commerce can be used to increase companies or sellers’ profits. For consumers, e-commerce can help them shop faster. The weakness of e-commerce is that there is too much product information presented in the catalog which in turn makes consumers confused. The solution is by providing product recommendations. As the development of sensor technology, eye tracker can capture user attention when shopping. The user attention was used as data of consumer interest in the product in the form of fixation duration following the Bojko taxonomy. The fixation duration data was processed into product purchase prediction data to know consumers’ desire to buy the products by using Chandon method. Both data could be used as variables to make product recommendations based on eye tracking data. The implementation of the product recommendations based on eye tracking data was an eye tracking experiment at selvahouse.com which sells hijab and women modest wear. The result was a list of products that have similarities to other products. The product recommendation method used was item-to-item collaborative filtering. The novelty of this research is the use of eye tracking data, namely the fixation duration and product purchase prediction data as variables for product recommendations. Product recommendation that produced by eye tracking data can be solution of product recommendation’s problems, namely sparsity and cold start.


2021 ◽  
Author(s):  
Anna Izmalkova ◽  
Anastasia Rzheshevskaya

The study explores the effects of graphological and semantic foregrounding on speech and gaze behavior in textual information construal of subjects with higher and lower impulsivity. Eye movements of sixteen participants were recorded as they read drama texts with interdiscourse switching (semantic foregrounding), with features of typeface distinct from the surrounding text (graphological foregrounding). Discourse modification patterns were analyzed and processed in several steps: specification of participant/object/action/event/perspective modification, parametric annotation of participants’ discourse responses, contrastive analysis of modification parameter activity and parameter synchronized activity. Significant distinctions were found in eye movement parameters (gaze count and initial fixation duration) in subjects with higher and lower impulsivity when reading parts of text with graphical foregrounding. Impulsive subjects tended to visit the areas more often with longer initial fixations than reflective subjects, which is explained in terms of stimulus-driven attention, associated with bottom-up processes. However, these differences in gaze behavior did not result in pronounced distinctions in discourse responses, which were only slightly mediated by impulsivity/reflectivity.


2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Shaoqi Jiang ◽  
Weijiong Chen ◽  
Yutao Kang

To maintain situation awareness (SA) when exposed to emergencies during pilotage, a pilot needs to selectively allocate attentional resources to perceive critical status information about ships and environments. Although it is important to continuously monitor a pilot’s SA, its relationship with attention is still not fully understood in ship pilotage. This study performs bridge simulation experiments that include vessel departure, navigation in the fairway, encounters, poor visibility, and anchoring scenes with 13 pilots (mean = 11.3 and standard deviation = 1.4 of experience). Individuals were divided into two SA group levels based on the Situation Awareness Rating Technology (SART-2) score (mean = 20.13 and standard deviation = 5.83) after the experiments. The visual patterns using different SA groups were examined using heat maps and scan paths based on pilots’ fixations and saccade data. The preliminary visual analyses of the heat maps and scan paths indicate that the pilots’ attentional distribution is modulated by the SA level. That is, the most concerning areas of interest (AOIs) for pilots in the high and low SA groups are outside the window (AOI-2) and electronic charts (AOI-1), respectively. Subsequently, permutation simulations were utilized to identify statistical differences between the pilots’ eye-tracking metrics and SA. The results of the statistical analyses show that the fixation and saccade metrics are affected by the SA level in different AOIs across the five scenes, which confirms the findings of previous studies. In encounter scenes, the pilots’ SA level is correlated with the fixation and saccade metrics: fixation count ( p  = 0.034 < 0.05 in AOI-1 and p  = 0.032 < 0.05 in AOI-2), fixation duration ( p  = 0.043 < 0.05 in AOI-1 and p  = 0.014 < 0.05 in AOI-2), and saccade count ( p  = 0.086 < 0.1 in AOI-1 and p  = 0.054 < 0.1 in AOI-2). This was determined by the fixation count ( p  = 0.024 < 0.05 in AOI-1 and p  = 0.034 < 0.05 in AOI-2), fixation duration ( p  = 0.036 < 0.05 in AOI-1 and p  = 0.047 < 0.05 in AOI-2), and saccade duration ( p  = 0.05 ≤ 0.05 in AOI-1 and p  = 0.042 < 0.05 in AOI-2) in poor-visibility scenes. In the remaining scenes, the SA could not be measured using eye movements alone. This study lays a foundation for the cognitive mechanism recognition of pilots based on SA via eye-tracking technology, which provides a reference to establish cognitive competency standards in preliminary pilot screenings.


2021 ◽  
Vol 42 (6) ◽  
pp. 46-59
Author(s):  
Ya. K. Smirnova ◽  

The article investigates joint attention deficits in various forms of atypical development using eye movement recording. Preschoolers aged 5-7 years from different clinical groups participated in the study: typically developing (n = 20), with mental retardation (ICD-10 class F83) (n = 20), preschoolers with delayed speech development (ICD-10 class R47) (n = 20), with hearing impairment (sensorineural hearing loss, ICD-10 class H90) (n = 10) and with visual impairment (amblyopia and strabismus, IBC-10 class H53) (n = 20). Contrasting group analyses allowed us to identify both specific and universal manifestations of joint attention deficit symptoms in the different forms of atypical development. Gaze tracking was used to analyze fixation duration and frequency, fixation distribution, areas of interest, and to identify markers of joint attention deficits that interfere with the child's productive interaction with an adult. Potential mechanisms of atypical joint attention are described, including atypical direction of gaze, changes in the dynamics of the operative visual field, duration of visual concentration, and accuracy in fixing the object’s elements. It is shown that fixation time in joint attention episodes can be regarded as a prognostic marker of joint attention disorders: joint attention is associated not only with spatial characteristics of areas of interest, but also with fixation duration on the object (decrease/increase in fixation duration).


2021 ◽  
Vol 2 (2) ◽  
pp. 25-34
Author(s):  
Yogie Ajie Purnomo ◽  
Tri Suratno ◽  
Mauladi Mauladi

Not all websites have fulfilled basic principles such as accessible and easy to use (usable). There are several measuring methods that already exist. In this research, the measurement is done by combining 2 measuring methods namely usability testing and eye tracking because the measurement is done with props that are eye tracking, so that at the same time we can measure the indicator usability testing and eye tracking metrics. So researchers to know the level of relationship or correlation between usability testing indicators and eye tracking metrics. The type of research conducted is a type of associative research with quantitative and qualitative approaches. Where both of these methods will result in quantitative data such as time on task, difficulty ratings, fixation duration mean and time to first fixation. Qualitative Data is obtained from playing the recorded results and conducting interviews to examine the results of eye movements when testing is the same as the opinions or perceptions of each participant. Results of a correlation test Pearson product moment acquired correlation or relationship between time on task with fixation duration mean, time on task with time to first fixation, difficulty ratings with fixation duration mean, difficulty ratings with time to First fixation. There are two possibilities of usability measurement performance indicators with eye tracking proving a significant correlation means measurement of usability using eye tracking can be used as an alternative in doing more usability measurement Accurate with significance levels > 2.048 in subsequent studies.


2021 ◽  
pp. 39-60
Author(s):  
Sylwester Białowąs ◽  
Adrianna Szyszka

Eye movements provide information on subconscious reactions in response to stimuli and are a reflection of attention and focus. With regard to visual activity, four types of eye movements—fixations, saccades, smooth pursuits and blinks—can be distinguished. Fixations—the number and distribution, total fixation time or average fixation duration are among the most common measures. The capabilities of this research method also allow the determination of scanpaths that track gaze on the image as well as heat- and focus maps, which visually represent points of gaze focus. A key concept in eye-tracking that allows for more in-depth analysis is areas of interest (AOI)—measures can then be taken for selected parts of the visual stimulus. On the other hand, the area of gaze outside the scope of analysis is called white space. The software allows for comparisons of static and non-static stimuli and provides a choice of template, dataset, metrics or data format. In conducting eye-tracking research, proper calibration is crucial, which means that the participant’s gaze should be adjusted to the internal model of the eye-tracking software. In addition, attention should be paid to such aspects as time and spatial control. The exposure time for each participant should be identical. The testing space should be well-lit and at a comfortable temperature.


Author(s):  
Xiaoju Li ◽  
Lei Han ◽  
Shoulin Zhu ◽  
Mingxing Gao

To determine the proper range of information quantity of traffic signs in the straight line sections of grassland highways, we have established virtual scenes of such sections of highways with varying levels of information quantity, and we have carried out an experiment on simulated driving. During the research, the method of principal component analysis (PCA) is adopted, and indicators related to eye movements are selected, which prove to be sensitive to the information quantity of traffic signs. Moreover, the pattern of variations is analyzed to examine how the information quantity of traffic signs may impose an impact on drivers’ visual load, and the experimental results are assessed and verified in a subjective manner. The research findings indicate that the information quantity of traffic signs could impose a significant impact on the fixation duration, saccade duration, saccade amplitude and fixation entropy of drivers. Within the proper range of information quantity (20–30 bits/km), drivers have shown stronger ability to acquire and process information with higher searching efficiency and optimal strategy of allocating attention, which will facilitate safe driving. The subjective assessment of drivers’ workload has also proven the validity of the research findings.


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