scholarly journals Eye tracking in the wild: Piloting a real-life assessment paradigm for older adults

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Damaris Aschwanden ◽  
Nicolas Langer ◽  
Mathias Allemand
Keyword(s):  
Older Adults ◽  
Eye Movements ◽  
Eye Tracking ◽  
Personality Traits ◽  
Feasibility Study ◽  
Real Life ◽  
Life Assessment ◽  
Grocery Shopping ◽  
Eye Tracker ◽  
Older Individuals

Previous research showed associations between personality traits and eye movements of young adults in the laboratory. However, less is known about these associations in real life and in older age. Primarily, there seems to be no paradigm to assess eye movements of older adults in real life. The present feasibility study thus aimed to test grocery shopping as a real-life assessment paradigm with older adults. Additionally, possible links between personality traits and eye movements were explored. The sample consisted of 38 older individuals (M = 72.85 years). Participants did their grocery shopping in a supermarket while wearing an eye tracker. Three key feasibility issues were examined, that is (1) wearability of the eye tracker during grocery shopping, (2) recording, and (3) evaluation of eye movements in a real-life context. Our real-life assessment paradigm showed to be feasible to implement and acceptable to older adults. This feasibility study provides specific practical recommendations which may be useful for fu-ture studies that plan to innovatively expand the traditional methods repertoire of personality science and aging research by using eye tracking in real life.

Intelligence and Personality

2020 ◽  
Vol 41 (3) ◽  
pp. 124-132
Author(s):  
Marc-André Bédard ◽  
Yann Le Corff
Keyword(s):  
Personality Traits ◽  
Big Five ◽  
Real Life ◽  
Big Five Personality Traits ◽  
Original Study ◽  
Life Assessment ◽  
Big Five Personality ◽  
Verbal Intelligence ◽  
Nonverbal Intelligence ◽  
French Canadian

Abstract. This replication and extension of DeYoung, Quilty, Peterson, and Gray’s (2014) study aimed to assess the unique variance of each of the 10 aspects of the Big Five personality traits ( DeYoung, Quilty, & Peterson, 2007 ) associated with intelligence and its dimensions. Personality aspects and intelligence were assessed in a sample of French-Canadian adults from real-life assessment settings ( n = 213). Results showed that the Intellect aspect was independently associated with g, verbal, and nonverbal intelligence while its counterpart Openness was independently related to verbal intelligence only, thus replicating the results of the original study. Independent associations were also found between Withdrawal, Industriousness and Assertiveness aspects and verbal intelligence, as well as between Withdrawal and Politeness aspects and nonverbal intelligence. Possible explanations for these associations are discussed.

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.

Effects of aging and noncanonical form presentation on idiom processing: Evidence from eye tracking

2020 ◽  
pp. 1-27
Author(s):  
Katja I. Haeuser ◽  
Shari Baum ◽  
Debra Titone
Keyword(s):  
Older Adults ◽  
Eye Movements ◽  
Eye Tracking ◽  
Healthy Aging ◽  
Idiom Comprehension ◽  
First Pass ◽  
Effects Of Aging ◽  
Open Question ◽  
Idiom Processing ◽  
Noncanonical Form

Abstract Comprehending idioms (e.g., bite the bullet) requires that people appreciate their figurative meanings while suppressing literal interpretations of the phrase. While much is known about idioms, an open question is how healthy aging and noncanonical form presentation affect idiom comprehension when the task is to read sentences silently for comprehension. Here, younger and older adults read sentences containing idioms or literal phrases, while we monitored their eye movements. Idioms were presented in a canonical or a noncanonical form (e.g., bite the iron bullet). To assess whether people integrate figurative or literal interpretations of idioms, a disambiguating region that was figuratively or literally biased followed the idiom in each sentence. During early stages of reading, older adults showed facilitation for canonical idioms, suggesting a greater sensitivity to stored idiomatic forms. During later stages of reading, older adults showed slower reading times when canonical idioms were biased toward their literal interpretation, suggesting they were more likely to interpret idioms figuratively on the first pass. In contrast, noncanonical form presentation slowed comprehension of figurative meanings comparably in younger and older participants. We conclude that idioms may be more strongly entrenched in older adults, and that noncanonical form presentation slows comprehension of figurative meanings.

scholarly journals Effect of Cognitive Control on Attentional Processing of Emotional Information Among Older Adults: Evidence From an Eye-Tracking Study

2021 ◽  
Vol 13 ◽  
Author(s):  
Haining Liu ◽  
Haihong Liu ◽  
Feng Li ◽  
Buxin Han ◽  
Cuili Wang
Keyword(s):  
Older Adults ◽  
Cognitive Control ◽  
Eye Tracking ◽  
Healthy Aging ◽  
Older Individuals ◽  
Younger Adults ◽  
Spatial Cueing ◽  
Age Related ◽  
Cueing Task ◽  
Engagement And Disengagement

Background: Although numerous studies have suggested that the gradually increasing selective preference for positive information over negative information in older adults depends on cognitive control processes, few have reported the characteristics of different attention stages in the emotional processing of older individuals. The present study used a real-time eye-tracking technique to disentangle the attentional engagement and disengagement processes involved in age-related positivity effect (PE).Methods: Eye movement data from a spatial-cueing task were obtained for 32 older and 32 younger healthy participants. The spatial-cueing task with varied cognitive loads appeared to be an effective way to explore the role of cognitive control during the attention engagement and disengagement stages of emotion processing.Results: Compared with younger adults, older participants showed more positive gaze preferences when cognitive resources were sufficient for face processing at the attention engagement stage. However, the age-related PE was not observed at the attention disengagement stage because older adults had more difficulty disengaging from fearful faces than did the younger adults due to the consumption of attention by the explicit target judgment.Conclusion: The present study highlights how cognitive control moderates positive gaze preferences at different attention processing stages. These findings may have far-reaching implications for understanding, preventing, and intervening in unsuccessful aging and, thus, in promoting active and healthy aging.

scholarly journals The Potential of Naturalistic Eye Movement Tasks in the Diagnosis of Alzheimer’s Disease: A Review

2021 ◽  
Vol 11 (11) ◽  
pp. 1503
Author(s):  
Megan Rose Readman ◽  
Megan Polden ◽  
Melissa Chloe Gibbs ◽  
Lettie Wareing ◽  
Trevor J. Crawford
Keyword(s):  
Alzheimer’S Disease ◽  
Older Adults ◽  
Alzheimer's Disease ◽  
Cognitive Impairment ◽  
Eye Tracking ◽  
Real Life ◽  
Error Rates ◽  
Healthy Older Adults ◽  
Tracking Tasks ◽  
Current Review

Extensive research has demonstrated that eye-tracking tasks can effectively indicate cognitive impairment. For example, lab-based eye-tracking tasks, such as the antisaccade task, have robustly distinguished between people with Alzheimer’s disease (AD) and healthy older adults. Due to the neurodegeneration associated with AD, people with AD often display extended saccade latencies and increased error rates on eye-tracking tasks. Although the effectiveness of using eye tracking to identify cognitive impairment appears promising, research considering the utility of eye tracking during naturalistic tasks, such as reading, in identifying cognitive impairment is limited. The current review identified 39 articles assessing eye-tracking distinctions between people with AD, mild cognitive impairment (MCI), and healthy controls when completing naturalistic task (reading, real-life simulations, static image search) or a goal-directed task involving naturalistic stimuli. The results revealed that naturalistic tasks show promising biomarkers and distinctions between healthy older adults and AD participants, and therefore show potential to be used for diagnostic and monitoring purposes. However, only twelve articles included MCI participants and assessed the sensitivity of measures to detect cognitive impairment in preclinical stages. In addition, the review revealed inconsistencies within the literature, particularly when assessing reading tasks. We urge researchers to expand on the current literature in this area and strive to assess the robustness and sensitivity of eye-tracking measures in both AD and MCI populations on naturalistic tasks.

scholarly journals Is the eye-movement field confused about fixations and saccades? A survey among 124 researchers

2018 ◽  
Vol 5 (8) ◽  
pp. 180502 ◽  
Author(s):  
Roy S. Hessels ◽  
Diederick C. Niehorster ◽  
Marcus Nyström ◽  
Richard Andersson ◽  
Ignace T. C. Hooge
Keyword(s):  
Eye Movements ◽  
Eye Tracking ◽  
Coordinate System ◽  
Eye Movement ◽  
Eye Tracker ◽  
New Methods ◽  
Research Fields ◽  
Wide Range ◽  
Movement Field ◽  
Mobile Eye Tracking

Eye movements have been extensively studied in a wide range of research fields. While new methods such as mobile eye tracking and eye tracking in virtual/augmented realities are emerging quickly, the eye-movement terminology has scarcely been revised. We assert that this may cause confusion about two of the main concepts: fixations and saccades. In this study, we assessed the definitions of fixations and saccades held in the eye-movement field, by surveying 124 eye-movement researchers. These eye-movement researchers held a variety of definitions of fixations and saccades, of which the breadth seems even wider than what is reported in the literature. Moreover, these definitions did not seem to be related to researcher background or experience. We urge researchers to make their definitions more explicit by specifying all the relevant components of the eye movement under investigation: (i) the oculomotor component: e.g. whether the eye moves slow or fast; (ii) the functional component: what purposes does the eye movement (or lack thereof) serve; (iii) the coordinate system used: relative to what does the eye move; (iv) the computational definition: how is the event represented in the eye-tracker signal. This should enable eye-movement researchers from different fields to have a discussion without misunderstandings.

scholarly journals Line breaks in subtitling: An eye tracking study on viewer preferences

2018 ◽  
Vol 11 (3) ◽  
Author(s):  
Olivia Gerber-Morón ◽  
Agnieszka Szarkowska
Keyword(s):  
Individual Differences ◽  
Eye Movements ◽  
Eye Tracking ◽  
Hard Of Hearing ◽  
Real Life ◽  
Syntactic Processing ◽  
Deaf People ◽  
Hearing Status ◽  
The Uk ◽  
Linguistic Units

There is a discrepancy between professional subtitling guidelines and how they are implemented in real life. One example of such discrepancy are line breaks: the way the text is divided between the two lines in a subtitle. Although we know from the guidelines how subtitles should look like and from watching subtitled materials how they really look like, little is known about what line breaks viewers would prefer. We examined individual differences in syntactic processing and viewers’ preferences regarding line breaks in various linguistic units, including noun, verb and adjective phrases. We studied people’s eye movements while they were reading pictures with subtitles. We also investigated whether these preferences are affected by hearing status and previous experience with subtitling. Viewers were shown 30 pairs of screenshots with syntactically segmented and non-syntactically segmented subtitles and they were asked to choose which subtitle in each pair was better. We tested 21 English, 26 Spanish and 21 Polish hearing people, and 19 hard of hearing and deaf people from the UK. Our results show that viewers prefer syntactically segmented line breaks. Eye tracking results indicate that linguistic units are processed differently depending on the linguistic category and the viewers’ profile.

scholarly journals The role of emoticons in sarcasm comprehension in younger and older adults: Evidence from an eye-tracking experiment

2020 ◽  
Vol 73 (11) ◽  
pp. 1729-1744
Author(s):  
Hannah Elizabeth Howman ◽  
Ruth Filik
Keyword(s):  
Older Adults ◽  
Eye Movements ◽  
Eye Tracking ◽  
Related Factors ◽  
Younger Adults ◽  
Time Processing ◽  
Time Reading ◽  
Positive Nature

We present an eye-tracking experiment examining moment-to-moment processes underlying the comprehension of emoticons. Younger (18–30) and older (65+) participants had their eye movements recorded while reading scenarios containing comments that were ambiguous between literal or sarcastic interpretations (e.g., But you’re so quick though). Comments were accompanied by wink emoticons or full stops. Results showed that participants read earlier parts of the wink scenarios faster than those with full stops, but then spent more time reading the text surrounding the emoticon. Thus, readers moved more quickly to the end of the text when there was a device that may aid interpretation but then spent more time processing the conflict between the superficially positive nature of the comment and the tone implied by the emoticon. Interestingly, the wink increased the likelihood of a sarcastic interpretation in younger adults only, suggesting that perceiver-related factors play an important role in emoticon interpretation.

scholarly journals The influence of vergence facility on binocular eye movements during reading

2019 ◽  
Vol 12 (4) ◽  
Author(s):  
Remo Poffa ◽  
Roland Joos
Keyword(s):  
Eye Movements ◽  
Eye Tracking ◽  
Reading Difficulties ◽  
Eye Tracker ◽  
Fixation Disparity ◽  
Linear Mixed Effects ◽  
Eye Movements During Reading ◽  
Distance Conditions ◽  
Reading Distance ◽  
Binocular Coordination

Optometrists regularly use binocular measurements in patients with asthenopic complaints when performing close-up work. The focus of this work was therefore on the correlation of optometric parameters and objective fixation disparity (FD) measured by an eye tracker. In our investigation, 20 participants (6 male, 14 female) were subjected to a classical optometric procedure. Subsequently, these subjects read various sentences on a screen and eye movements were registered by using a RED500 eye tracker. The experiment was performed under two reading distance conditions. In order to be comparable with previous work, the present study was conducted under dark illumination conditions (J. A. Kirkby, Blythe, Drieghe, Benson, & Liversedge, 2013). FD values were deduced from objective eye tracking data during reading. Data analysis was done using linear mixed-effects models. FD was found to depend on vergence facility (t=3.3, p=0.004). Subjects with a low vergence facility showed more eso fixation disparity than subjects with a normal vergence facility. If studies of binocular coordination using eye tracking methods are performed under dark illumination conditions, vergence facility is an important parameter and should be accounted for. Neglecting this parameter may mask other important parameters. Vergence facility in context of reading difficulties may be important.

Evaluating Eye Tracking Technology for Understanding how Medical Students Interpret a 12-Lead Electrocardiogram: A Quantitative Approach (Preprint)

2020 ◽  
Author(s):  
Mohammed Tahri Sqalli ◽  
Dena Al-Thani ◽  
Mohamed Badreldin Elshazly ◽  
‪Mohammed Al-Hijji
Keyword(s):  
Eye Movements ◽  
Medical Students ◽  
Eye Tracking ◽  
Fixation Time ◽  
Eye Tracker ◽  
Different Types ◽  
Interpretation Process ◽  
The Mean ◽  
Tracking Technology ◽  
Insight Into

BACKGROUND It is common among healthcare practitioners that accurate interpretation of a 12-lead electrocardiogram demands high levels of skill and expertise. There is a variation amongst healthcare practitioners in their ability to read ECGs accurately and quickly. Moreover, guidelines or best-practices for a standard interpretation process are inexistant. This causes a chasm between skilled interpreters and medical students who are just beginning to develop this skill. OBJECTIVE This study aims to use the eye tracking methodology to research whether eye fixation can be used to gain a deeper understanding into how medical students acquire the ECG interpretation skill. METHODS Each one of the sixteen recruited medical students was asked to interpret ten different types of 12-lead ECGs, while their eye movements were recorded using a Tobii X60 eye tracker. The device uses corneal reflection technology to non-intrusively record the interpreter’s eye movements. The frequency of sampling is 60Hz. Fixations’ heatmaps of where medical students looked at were generated from the collected dataset. A statistical analysis was conducted on the fixations’ count and duration using the Mann Whitney U test, and the Kruskal Wallis test. RESULTS A total number of 16 medical students interpreting 10 ECGs each were recorded. Each interpretation lasted for a duration of 30 seconds. The mean accuracy of the interpretations was 55.63% with a standard deviation of 4.63 %. After analyzing the average fixation duration, we find that on average students study the three lower leads (rhythm strips) the most with a top-down approach (lead II has highest fixation time (mean = 2727 ms, SD = 456) followed by leads V1 (mean = 1476 fixations, SD = 320), V5 (mean = 1301 fixations, SD = 236). We also find a strong correlation between some of the eye tracking features like the time spent fixating and the fixation count (r = 0.87). Finally, by analyzing the time to the first fixation, we understand that medical students develop a personal system of interpretation that adapts and reacts to the nature and the complexity of the diagnosis. We also find that medical students consider some leads as their guiding point towards finding a hint leading to the correct interpretation. CONCLUSIONS The use of eye tracking methodology provided a more precise insight into how medical students learn how to interpret a 12-lead ECG. CLINICALTRIAL NA

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