scholarly journals Optimal eye-fixation positions for face perception: A combined ERP and eye-tracking study

2011 ◽  
Vol 11 (11) ◽  
pp. 658-658
Author(s):  
Y. Zerouali ◽  
B. Jemel
2021 ◽  
Vol 12 ◽  
Author(s):  
Ulrich Max Schaller ◽  
Monica Biscaldi ◽  
Anna Burkhardt ◽  
Christian Fleischhaker ◽  
Michael Herbert ◽  
...  

Face perception and emotion categorization are widely investigated under laboratory conditions that are devoid of real social interaction. Using mobile eye-tracking glasses in a standardized diagnostic setting while applying the Autism Diagnostic Observation Schedule (ADOS-2), we had the opportunity to record gaze behavior of children and adolescents with and without Autism Spectrum Conditions (ASCs) during social interaction. The objective was to investigate differences in eye-gaze behavior between three groups of children and adolescents either (1) with ASC or (2) with unconfirmed diagnosis of ASC or (3) with neurotypical development (NTD) during social interaction with an adult interviewer in a diagnostic standard situation using the ADOS-2. In a case control study, we used mobile eye-tracking glasses in an ecologically valid and highly standardized diagnostic interview to investigate suspected cases of ASC. After completion of the ASC diagnostic gold standard including the ADOS-2, the participants were assigned to two groups based on their diagnosis (ASC vs. non-ASC) and compared with a matched group of neurotypically developed controls. The primary outcome measure is the percentage of total dwell times assessed for different areas of interest (AOI) with regard to the face and body of a diagnostic interviewer and the surrounding space. Overall, 65 children and adolescents within an age range of 8.3–17.9 years were included in the study. The data revealed significant group differences, especially in the central-face area. Previous investigations under laboratory conditions gave preferential attention to the eye region during face perception to describe differences between ASC and NTD. In this study – using an ecologically valid setting within a standard diagnostic procedure – the results indicate that neurotypically developed controls seem to process faces and facial expressions in a holistic manner originating from the central-face region. Conversely, participants on the Autism Spectrum (tAS) seem to avoid the central-face region and show unsystematic gaze behavior, not using the preferred landing position in the central-face region as the Archimedean point of face perception. This study uses a new approach, and it will be important to replicate these preliminary findings in future research.


2012 ◽  
Vol 37 (2) ◽  
pp. 95-99 ◽  
Author(s):  
Elisa Di Giorgio ◽  
David Méary ◽  
Olivier Pascalis ◽  
Francesca Simion

The current study aimed at investigating own- vs. other-species preferences in 3-month-old infants. The infants’ eye movements were recorded during a visual preference paradigm to assess whether they show a preference for own-species faces when contrasted with other-species faces. Human and monkey faces, equated for all low-level perceptual characteristics, were used. Our results demonstrated that 3-month-old infants preferred the human face, suggesting that the face perception system becomes species-specific after 3 months of visual experience with a specific class of faces. The eye tracking results are also showing that fixations were more focused on the eye area of human faces, supporting the notion of their importance in holding visual attention.


2011 ◽  
Vol 48 (2) ◽  
pp. 210-216 ◽  
Author(s):  
Philipp Meyer-Marcotty ◽  
Antje B.M. Gerdes ◽  
Angelika Stellzig-Eisenhauer ◽  
Georg W. Alpers

2013 ◽  
Vol 35 (3) ◽  
pp. 483-517 ◽  
Author(s):  
Aline Godfroid ◽  
Frank Boers ◽  
Alex Housen

This eye-tracking study tests the hypothesis that more attention leads to more learning, following claims that attention to new language elements in the input results in their initial representation in long-term memory (i.e., intake; Robinson, 2003; Schmidt, 1990, 2001).Twenty-eight advanced learners of English read English texts that contained 12 targets for incidental word learning. The target was a known word (control condition), a matched pseudoword, or that pseudoword preceded or followed by the known word (with the latter being a cue to the pseudoword’s meaning). Participants’ eye-fixation durations on the targets during reading served as a measure of the amount of attention paid (see Rayner, 2009).Results indicate that participants spent more time processing the unknown pseudowords than their matched controls. The longer participants looked at a pseudoword during reading, the more likely they were to recognize that word in an unannounced vocabulary posttest. Finally, the known, appositive cues were fixated longer when they followed the pseudowords than when they preceded them; however, their presence did not lead to higher retention of the pseudowords.We discuss how eye-tracking may add to existing methodologies for studying attention and noticing (Schmidt, 1990) in SLA.


2021 ◽  
Vol 12 ◽  
Author(s):  
Johan Lundin Kleberg ◽  
Emilie Bäcklin Löwenberg ◽  
Jennifer Y. F. Lau ◽  
Eva Serlachius ◽  
Jens Högström

Background: Social anxiety disorder (SAD) has its typical onset in childhood and adolescence. Maladaptive processing of social information may contribute to the etiology and maintenance of SAD. During face perception, individuals execute a succession of visual fixations known as a scanpath which facilitates information processing. Atypically long scanpaths have been reported in adults with SAD, but no data exists from pediatric samples. SAD has also been linked to atypical arousal during face perception. Both metrics were examined in one of the largest eye-tracking studies of pediatric SAD to date.Methods: Participants were children and adolescents with SAD (n = 61) and healthy controls (n = 39) with a mean age of 14 years (range 10–17) who completed an emotion recognition task. The visual scanpath and pupil dilation (an indirect index of arousal) were examined using eye tracking.Results: Scanpaths of youth with SAD were shorter, less distributed, and consisted of a smaller number of fixations than those of healthy controls. These findings were supported by both frequentist and Bayesian statistics. Higher pupil dilation was also observed in the SAD group, but despite a statistically significant group difference, this result was not supported by the Bayesian analysis.Conclusions: The results were contrary to findings from adult studies, but similar to what has been reported in neurodevelopmental conditions associated with social interaction impairments. Restricted scanpaths may disrupt holistic representation of faces known to favor adaptive social understanding.


2021 ◽  
Vol 21 (9) ◽  
pp. 2965
Author(s):  
Amy vanWell ◽  
James Tanaka ◽  
Xiaoyi Liu ◽  
Jacob Martin

2017 ◽  
Vol 8 (6) ◽  
pp. 1082 ◽  
Author(s):  
Boy Nurtjahyo Moch. ◽  
Komarudin Komarudin ◽  
Maulana Senjaya Susilo

Author(s):  
Gerald Matthews ◽  
Ryan Wohleber ◽  
Jinchao Lin ◽  
Lauren Reinerman-Jones ◽  
Valarie Yerdon ◽  
...  

Insider Threat (IT) is a growing cybersecurity issue. Countermeasures based on cognitive engineering may utilize diagnostic eye fixation responses indicative of insider intent, elicited by Active Indicator Probes (AIPs). The current study embedded AIPs into an immersive simulation of espionage activities. Participants allocated to an insider role were required to monitor building images for cues to a terrorist person-of-interest, and communicate information to an external handler. Control participants performed matched normal work. Findings confirmed a previous finding that ITs show fixation responses suggestive of strategic concealment of interest. They also showed heightened attention to communications from their local controller. These results may contribute to identification of possible ITs for further screening.


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