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Brief Report: Pupillometry, Visual Perception, and ASD Features in a Task-Switching Paradigm / A. S. DICRISCIO in Journal of Autism and Developmental Disorders, 49-12 (December 2019)
[article]
Titre : Brief Report: Pupillometry, Visual Perception, and ASD Features in a Task-Switching Paradigm Type de document : Texte imprimé et/ou numérique Auteurs : A. S. DICRISCIO, Auteur ; Y. HU, Auteur ; V. TROIANI, Auteur Article en page(s) : p.5086-5099 Langues : Anglais (eng) Mots-clés : Attention Autism Eye tracking Pupillometry Visual perception Index. décimale : PER Périodiques Résumé : We assessed the association between dynamic changes in pupil response in the context of visual perception and quantitative measures of the autism phenotype in healthy adults. Using Navon stimuli in a task-switching paradigm, participants were instructed to identify global or local information based on a cue. Multiple pupil response trajectories across conditions were identified. We combined trajectory patterns for global and local conditions and used data-driven methods to identify three distinct pupil trajectory sub-groups. We report higher scores on quantitative measures of autism features in individuals who demonstrated an increased change in pupil diameter across both conditions. Results demonstrate the use of individualized pupil response trajectories in order to quantitatively characterize visual perception associated with the broader autism phenotype (BAP). En ligne : http://dx.doi.org/10.1007/s10803-019-04213-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=411
in Journal of Autism and Developmental Disorders > 49-12 (December 2019) . - p.5086-5099[article] Brief Report: Pupillometry, Visual Perception, and ASD Features in a Task-Switching Paradigm [Texte imprimé et/ou numérique] / A. S. DICRISCIO, Auteur ; Y. HU, Auteur ; V. TROIANI, Auteur . - p.5086-5099.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 49-12 (December 2019) . - p.5086-5099
Mots-clés : Attention Autism Eye tracking Pupillometry Visual perception Index. décimale : PER Périodiques Résumé : We assessed the association between dynamic changes in pupil response in the context of visual perception and quantitative measures of the autism phenotype in healthy adults. Using Navon stimuli in a task-switching paradigm, participants were instructed to identify global or local information based on a cue. Multiple pupil response trajectories across conditions were identified. We combined trajectory patterns for global and local conditions and used data-driven methods to identify three distinct pupil trajectory sub-groups. We report higher scores on quantitative measures of autism features in individuals who demonstrated an increased change in pupil diameter across both conditions. Results demonstrate the use of individualized pupil response trajectories in order to quantitatively characterize visual perception associated with the broader autism phenotype (BAP). En ligne : http://dx.doi.org/10.1007/s10803-019-04213-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=411 Reactivity to fearful expressions of familiar and unfamiliar people in children with autism: an eye-tracking pupillometry study / H. J. NUSKE in Journal of Neurodevelopmental Disorders, 6-1 (December 2014)
[article]
Titre : Reactivity to fearful expressions of familiar and unfamiliar people in children with autism: an eye-tracking pupillometry study Type de document : Texte imprimé et/ou numérique Auteurs : H. J. NUSKE, Auteur ; G. VIVANTI, Auteur ; Cheryl DISSANAYAKE, Auteur Article en page(s) : p.14 Langues : Anglais (eng) Mots-clés : Autism Emotion Eye-tracking Familiarity Physiological reactivity Pupillometry Response latency Index. décimale : PER Périodiques Résumé : BACKGROUND: Individuals with autism are often reported to have difficulty with emotion processing. However, clinical and experimental data show that they are sensitive to familiarity; for example, they show normative attachment to familiar people, and have normative brain activity in response to familiar faces. To date, no study has measured their reactivity to the emotions of familiar vs. unfamiliar people. Thus, our aim was to determine whether individuals with autism would show normative reactivity to emotion in familiar people. METHODS: Participants were 21 children with autism and 21 children with typical development, aged two to five years, matched on age and gender. The children observed videos of familiar people (their child-care teachers) and unfamiliar people expressing fear, whilst their visual attention and pupillary reactions were recorded (the latter as an index of emotional reactivity), using eye tracking technology. RESULTS: The children with autism showed normative pupillary reactions (peak magnitude) to fear expressed by familiar people, but a reduced response to fear expressed by unfamiliar people. However, across familiarity conditions, the children with autism had longer latency peak responses than the typically developing children. This pattern of findings was independent of cognitive factors or visual attention as visual attention by group was not related to familiarity condition. The children with autism had reduced visual attention to neutral faces; however, on fearful faces there were no group differences. Abnormalities in pupillary reactivity in the autism group were related to less prosocial behaviour and more severe play and communication deficits. CONCLUSIONS: Children with autism were less atypical in their responses to fearful expressions of people they know, arguing against a pervasive emotional impairment in autism, but rather one that may be mediated by familiarity. En ligne : http://dx.doi.org/10.1186/1866-1955-6-14 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=346
in Journal of Neurodevelopmental Disorders > 6-1 (December 2014) . - p.14[article] Reactivity to fearful expressions of familiar and unfamiliar people in children with autism: an eye-tracking pupillometry study [Texte imprimé et/ou numérique] / H. J. NUSKE, Auteur ; G. VIVANTI, Auteur ; Cheryl DISSANAYAKE, Auteur . - p.14.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 6-1 (December 2014) . - p.14
Mots-clés : Autism Emotion Eye-tracking Familiarity Physiological reactivity Pupillometry Response latency Index. décimale : PER Périodiques Résumé : BACKGROUND: Individuals with autism are often reported to have difficulty with emotion processing. However, clinical and experimental data show that they are sensitive to familiarity; for example, they show normative attachment to familiar people, and have normative brain activity in response to familiar faces. To date, no study has measured their reactivity to the emotions of familiar vs. unfamiliar people. Thus, our aim was to determine whether individuals with autism would show normative reactivity to emotion in familiar people. METHODS: Participants were 21 children with autism and 21 children with typical development, aged two to five years, matched on age and gender. The children observed videos of familiar people (their child-care teachers) and unfamiliar people expressing fear, whilst their visual attention and pupillary reactions were recorded (the latter as an index of emotional reactivity), using eye tracking technology. RESULTS: The children with autism showed normative pupillary reactions (peak magnitude) to fear expressed by familiar people, but a reduced response to fear expressed by unfamiliar people. However, across familiarity conditions, the children with autism had longer latency peak responses than the typically developing children. This pattern of findings was independent of cognitive factors or visual attention as visual attention by group was not related to familiarity condition. The children with autism had reduced visual attention to neutral faces; however, on fearful faces there were no group differences. Abnormalities in pupillary reactivity in the autism group were related to less prosocial behaviour and more severe play and communication deficits. CONCLUSIONS: Children with autism were less atypical in their responses to fearful expressions of people they know, arguing against a pervasive emotional impairment in autism, but rather one that may be mediated by familiarity. En ligne : http://dx.doi.org/10.1186/1866-1955-6-14 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=346 Brief Report: Evidence for Normative Resting-State Physiology in Autism / Heather J. NUSKE in Journal of Autism and Developmental Disorders, 44-8 (August 2014)
[article]
Titre : Brief Report: Evidence for Normative Resting-State Physiology in Autism Type de document : Texte imprimé et/ou numérique Auteurs : Heather J. NUSKE, Auteur ; Giacomo VIVANTI, Auteur ; Cheryl DISSANAYAKE, Auteur Article en page(s) : p.2057-2063 Langues : Anglais (eng) Mots-clés : Resting-state physiology Autism Pupillometry Baseline Eye-tracking Autonomic nervous system Index. décimale : PER Périodiques Résumé : Although the conception of autism as a disorder of abnormal resting-state physiology has a long history, the evidence remains mixed. Using state-of-the-art eye-tracking pupillometry, resting-state (tonic) pupil size was measured in children with and without autism. No group differences in tonic pupil size were found, and tonic pupil size was not related to age or cognitive ability in either group, and nor was it related to autistic symptoms. We suggest that previous findings of hyper-arousal in autism at baseline may be a product of different recording methods, in particular different movement-artifact removal techniques. These results question the notion that autism is associated with a fundamental dysregulation in resting-state physiology. Further research, employing such techniques is needed to confirm these findings. En ligne : http://dx.doi.org/10.1007/s10803-014-2068-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=236
in Journal of Autism and Developmental Disorders > 44-8 (August 2014) . - p.2057-2063[article] Brief Report: Evidence for Normative Resting-State Physiology in Autism [Texte imprimé et/ou numérique] / Heather J. NUSKE, Auteur ; Giacomo VIVANTI, Auteur ; Cheryl DISSANAYAKE, Auteur . - p.2057-2063.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 44-8 (August 2014) . - p.2057-2063
Mots-clés : Resting-state physiology Autism Pupillometry Baseline Eye-tracking Autonomic nervous system Index. décimale : PER Périodiques Résumé : Although the conception of autism as a disorder of abnormal resting-state physiology has a long history, the evidence remains mixed. Using state-of-the-art eye-tracking pupillometry, resting-state (tonic) pupil size was measured in children with and without autism. No group differences in tonic pupil size were found, and tonic pupil size was not related to age or cognitive ability in either group, and nor was it related to autistic symptoms. We suggest that previous findings of hyper-arousal in autism at baseline may be a product of different recording methods, in particular different movement-artifact removal techniques. These results question the notion that autism is associated with a fundamental dysregulation in resting-state physiology. Further research, employing such techniques is needed to confirm these findings. En ligne : http://dx.doi.org/10.1007/s10803-014-2068-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=236 Pupil size and pupillary light reflex in early infancy: heritability and link to genetic liability to schizophrenia / Ana Maria PORTUGAL in Journal of Child Psychology and Psychiatry, 63-9 (September 2022)
[article]
Titre : Pupil size and pupillary light reflex in early infancy: heritability and link to genetic liability to schizophrenia Type de document : Texte imprimé et/ou numérique Auteurs : Ana Maria PORTUGAL, Auteur ; Mark J. TAYLOR, Auteur ; Charlotte VIKTORSSON, Auteur ; Pär NYSTROM, Auteur ; Danyang LI, Auteur ; Kristiina TAMMIMIES, Auteur ; Angelica RONALD, Auteur ; Terje FALCK-YTTER, Auteur Article en page(s) : p.1068-1077 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder Depressive Disorder, Major Humans Infant Pupil/physiology Reflex, Pupillary/physiology Schizophrenia/genetics Pupillometry infancy polygenic risk scores pupillary light reflex schizophrenia twin design Index. décimale : PER Périodiques Résumé : BACKGROUND: Measures based on pupillometry, such as the pupillary light reflex (PLR) and baseline pupil size, reflect physiological responses linked to specific neural circuits that have been implicated as atypical in some psychiatric and neurodevelopmental conditions. METHODS: We investigated the contribution of genetic and environmental factors to the baseline pupil size and the PLR in 510 infant twins assessed at 5months of age (281 monozygotic and 229 dizygotic pairs), and its associations with common genetic variants associated with neurodevelopmental (autism spectrum disorder and attention deficit hyperactivity disorder) and mental health (bipolar disorder, major depressive disorder and schizophrenia) conditions using genome-wide polygenic scores (GPSs). RESULTS: Univariate twin modelling showed high heritability at 5months for both pupil size (h(2) =.64) and constriction in response to light (h(2) =.62), and bivariate twin modeling indicated substantial independence between the genetic factors influencing each (r(G) =.38). A statistically significant positive association between infant tonic pupil size and the GPS for schizophrenia was found (Î2=.15, p=.024), while there was no significant association with the GPS for autism or any other GPSs. CONCLUSIONS: This study shows that some pupil measures are highly heritable in early infancy, although substantially independent in their genetic etiologies, and associated with common genetic variants linked to schizophrenia. It illustrates how genetically informed studies of infants may help us understand early physiological responses associated with psychiatric disorders which emerge much later in life. En ligne : http://dx.doi.org/10.1111/jcpp.13564 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=486
in Journal of Child Psychology and Psychiatry > 63-9 (September 2022) . - p.1068-1077[article] Pupil size and pupillary light reflex in early infancy: heritability and link to genetic liability to schizophrenia [Texte imprimé et/ou numérique] / Ana Maria PORTUGAL, Auteur ; Mark J. TAYLOR, Auteur ; Charlotte VIKTORSSON, Auteur ; Pär NYSTROM, Auteur ; Danyang LI, Auteur ; Kristiina TAMMIMIES, Auteur ; Angelica RONALD, Auteur ; Terje FALCK-YTTER, Auteur . - p.1068-1077.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 63-9 (September 2022) . - p.1068-1077
Mots-clés : Autism Spectrum Disorder Depressive Disorder, Major Humans Infant Pupil/physiology Reflex, Pupillary/physiology Schizophrenia/genetics Pupillometry infancy polygenic risk scores pupillary light reflex schizophrenia twin design Index. décimale : PER Périodiques Résumé : BACKGROUND: Measures based on pupillometry, such as the pupillary light reflex (PLR) and baseline pupil size, reflect physiological responses linked to specific neural circuits that have been implicated as atypical in some psychiatric and neurodevelopmental conditions. METHODS: We investigated the contribution of genetic and environmental factors to the baseline pupil size and the PLR in 510 infant twins assessed at 5months of age (281 monozygotic and 229 dizygotic pairs), and its associations with common genetic variants associated with neurodevelopmental (autism spectrum disorder and attention deficit hyperactivity disorder) and mental health (bipolar disorder, major depressive disorder and schizophrenia) conditions using genome-wide polygenic scores (GPSs). RESULTS: Univariate twin modelling showed high heritability at 5months for both pupil size (h(2) =.64) and constriction in response to light (h(2) =.62), and bivariate twin modeling indicated substantial independence between the genetic factors influencing each (r(G) =.38). A statistically significant positive association between infant tonic pupil size and the GPS for schizophrenia was found (Î2=.15, p=.024), while there was no significant association with the GPS for autism or any other GPSs. CONCLUSIONS: This study shows that some pupil measures are highly heritable in early infancy, although substantially independent in their genetic etiologies, and associated with common genetic variants linked to schizophrenia. It illustrates how genetically informed studies of infants may help us understand early physiological responses associated with psychiatric disorders which emerge much later in life. En ligne : http://dx.doi.org/10.1111/jcpp.13564 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=486 Pupillary Responses Obey Emmert's Law and Co-vary with Autistic Traits / C. TORTELLI in Journal of Autism and Developmental Disorders, 51-8 (August 2021)
[article]
Titre : Pupillary Responses Obey Emmert's Law and Co-vary with Autistic Traits Type de document : Texte imprimé et/ou numérique Auteurs : C. TORTELLI, Auteur ; M. TURI, Auteur ; D. C. BURR, Auteur ; P. BINDA, Auteur Article en page(s) : p.2908-2919 Langues : Anglais (eng) Mots-clés : Adult Autism Spectrum Disorder/diagnosis/physiopathology Female Humans Illusions/physiology Male Photic Stimulation Pupil/physiology Reflex, Pupillary/physiology Young Adult Autistic traits Individual differences Perceptual illusion Pupillometry Index. décimale : PER Périodiques Résumé : We measured the pupil response to a light stimulus subject to a size illusion and found that stimuli perceived as larger evoke a stronger pupillary response. The size illusion depends on combining retinal signals with contextual 3D information; contextual processing is thought to vary across individuals, being weaker in individuals with stronger autistic traits. Consistent with this theory, autistic traits correlated negatively with the magnitude of pupil modulations in our sample of neurotypical adults; however, psychophysical measurements of the illusion did not correlate with autistic traits, or with the pupil modulations. This shows that pupillometry provides an accurate objective index of complex perceptual processes, particularly useful for quantifying interindividual differences, and potentially more informative than standard psychophysical measures. En ligne : http://dx.doi.org/10.1007/s10803-020-04718-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=453
in Journal of Autism and Developmental Disorders > 51-8 (August 2021) . - p.2908-2919[article] Pupillary Responses Obey Emmert's Law and Co-vary with Autistic Traits [Texte imprimé et/ou numérique] / C. TORTELLI, Auteur ; M. TURI, Auteur ; D. C. BURR, Auteur ; P. BINDA, Auteur . - p.2908-2919.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 51-8 (August 2021) . - p.2908-2919
Mots-clés : Adult Autism Spectrum Disorder/diagnosis/physiopathology Female Humans Illusions/physiology Male Photic Stimulation Pupil/physiology Reflex, Pupillary/physiology Young Adult Autistic traits Individual differences Perceptual illusion Pupillometry Index. décimale : PER Périodiques Résumé : We measured the pupil response to a light stimulus subject to a size illusion and found that stimuli perceived as larger evoke a stronger pupillary response. The size illusion depends on combining retinal signals with contextual 3D information; contextual processing is thought to vary across individuals, being weaker in individuals with stronger autistic traits. Consistent with this theory, autistic traits correlated negatively with the magnitude of pupil modulations in our sample of neurotypical adults; however, psychophysical measurements of the illusion did not correlate with autistic traits, or with the pupil modulations. This shows that pupillometry provides an accurate objective index of complex perceptual processes, particularly useful for quantifying interindividual differences, and potentially more informative than standard psychophysical measures. En ligne : http://dx.doi.org/10.1007/s10803-020-04718-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=453 Arousal-modulated memory encoding and retrieval in adults with autism spectrum disorder / Nico BAST in Autism Research, 15-9 (September 2022)
PermalinkBrief Report: Visual Perception, Task-Induced Pupil Response Trajectories and ASD Features in Children / A. S. DICRISCIO in Journal of Autism and Developmental Disorders, 49-7 (July 2019)
PermalinkEye-Tracking, Autonomic, and Electrophysiological Correlates of Emotional Face Processing in Adolescents with Autism Spectrum Disorder / Jennifer B. WAGNER in Journal of Autism and Developmental Disorders, 43-1 (January 2013)
PermalinkEye Tracking Effort Expenditure and Autonomic Arousal to Social and Circumscribed Interest Stimuli in Autism Spectrum Disorder / J. M. TRAYNOR in Journal of Autism and Developmental Disorders, 49-5 (May 2019)
PermalinkIncreased pupil dilation to angry faces predicts interpersonal stress generation in offspring of depressed mothers / Cope FEURER in Journal of Child Psychology and Psychiatry, 58-8 (August 2017)
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