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Détail de l'auteur
Auteur S. G. LUKE |
Documents disponibles écrits par cet auteur (2)
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Not So Fast: Autistic traits and Anxious Apprehension in Real-World Visual Search Scenarios / N. C. C. RUSSELL in Journal of Autism and Developmental Disorders, 49-5 (May 2019)
[article]
Titre : Not So Fast: Autistic traits and Anxious Apprehension in Real-World Visual Search Scenarios Type de document : Texte imprimé et/ou numérique Auteurs : N. C. C. RUSSELL, Auteur ; S. G. LUKE, Auteur ; R. A. LUNDWALL, Auteur ; M. SOUTH, Auteur Article en page(s) : p.1795-1806 Langues : Anglais (eng) Mots-clés : Anxiety Autism Contextual integration Eye tracking Visual search Index. décimale : PER Périodiques Résumé : Autistic individuals have shown superior performance in simple, albeit difficult, visual search tasks. We compared eye movements and behavioral markers across two visual search tasks based on real-world scenes in young adults. Context-aided search increased speed and accuracy for all groups. Autistic adults (n = 29) were on average consistently slower and less accurate than a non-anxious neurotypical comparison group (n = 48), but similar to neurotypical adults with elevated anxious apprehension (n = 26). Dimensional analyses suggest that autism traits, not anxious apprehension, are most associated with search efficiency of naturalistic stimuli suggesting that autistic individuals can effectively integrate contextual information to aid visual search, but that advantages in less visually complex tasks, reported in previous studies, may not transfer to situations involving real-world scenes. En ligne : http://dx.doi.org/10.1007/s10803-018-03874-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=393
in Journal of Autism and Developmental Disorders > 49-5 (May 2019) . - p.1795-1806[article] Not So Fast: Autistic traits and Anxious Apprehension in Real-World Visual Search Scenarios [Texte imprimé et/ou numérique] / N. C. C. RUSSELL, Auteur ; S. G. LUKE, Auteur ; R. A. LUNDWALL, Auteur ; M. SOUTH, Auteur . - p.1795-1806.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 49-5 (May 2019) . - p.1795-1806
Mots-clés : Anxiety Autism Contextual integration Eye tracking Visual search Index. décimale : PER Périodiques Résumé : Autistic individuals have shown superior performance in simple, albeit difficult, visual search tasks. We compared eye movements and behavioral markers across two visual search tasks based on real-world scenes in young adults. Context-aided search increased speed and accuracy for all groups. Autistic adults (n = 29) were on average consistently slower and less accurate than a non-anxious neurotypical comparison group (n = 48), but similar to neurotypical adults with elevated anxious apprehension (n = 26). Dimensional analyses suggest that autism traits, not anxious apprehension, are most associated with search efficiency of naturalistic stimuli suggesting that autistic individuals can effectively integrate contextual information to aid visual search, but that advantages in less visually complex tasks, reported in previous studies, may not transfer to situations involving real-world scenes. En ligne : http://dx.doi.org/10.1007/s10803-018-03874-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=393 Separate contributions of autistic traits and anxious apprehension, but not alexithymia, to emotion processing in faces / K. G. STEPHENSON in Autism, 23-7 (October 2019)
[article]
Titre : Separate contributions of autistic traits and anxious apprehension, but not alexithymia, to emotion processing in faces Type de document : Texte imprimé et/ou numérique Auteurs : K. G. STEPHENSON, Auteur ; S. G. LUKE, Auteur ; M. SOUTH, Auteur Article en page(s) : p.1830-1842 Langues : Anglais (eng) Mots-clés : alexithymia anxious apprehension autism emotion eye fixation eye tracking mixed-effects modeling worry Index. décimale : PER Périodiques Résumé : Reduced eye fixation has been commonly reported in autistic samples but may be at least partially explained by alexithymia (i.e., difficulty understanding and describing one's emotional state). Because anxiety is often elevated in autism, and emotion-processing differences have also been observed in anxious samples, anxiety traits may also influence emotion processing within autism. This study tested the contribution of dimensional traits of autism, anxious apprehension, and alexithymia in mediating eye fixation during face processing. Participants included 105 adults from three samples: autistic adults (AS; n = 30), adults with clinically elevated anxiety and no autism (HI-ANX; n = 29), and neurotypical adults without elevated anxiety (NT; n = 46). Experiment 1 used an emotion identification task with dynamic stimuli, while Experiment 2 used a static luminance change detection task with emotional- and neutral-expression static photos. The emotions of interest were joy, anger, and fear. Dimensional mixed-effects models showed that autism traits, but not alexithymia, predicted reduced eye fixation across both tasks. Anxious apprehension was negatively related to response time in Experiment 1 and positively related to eye fixation in Experiment 2. Attentional avoidance of negative stimuli occurred at lower levels of autism traits and higher levels of worry traits. The results highlight the contribution of autism traits to emotional processing and suggest additional effects of worry-related traits. En ligne : http://dx.doi.org/10.1177/1362361319830090 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=406
in Autism > 23-7 (October 2019) . - p.1830-1842[article] Separate contributions of autistic traits and anxious apprehension, but not alexithymia, to emotion processing in faces [Texte imprimé et/ou numérique] / K. G. STEPHENSON, Auteur ; S. G. LUKE, Auteur ; M. SOUTH, Auteur . - p.1830-1842.
Langues : Anglais (eng)
in Autism > 23-7 (October 2019) . - p.1830-1842
Mots-clés : alexithymia anxious apprehension autism emotion eye fixation eye tracking mixed-effects modeling worry Index. décimale : PER Périodiques Résumé : Reduced eye fixation has been commonly reported in autistic samples but may be at least partially explained by alexithymia (i.e., difficulty understanding and describing one's emotional state). Because anxiety is often elevated in autism, and emotion-processing differences have also been observed in anxious samples, anxiety traits may also influence emotion processing within autism. This study tested the contribution of dimensional traits of autism, anxious apprehension, and alexithymia in mediating eye fixation during face processing. Participants included 105 adults from three samples: autistic adults (AS; n = 30), adults with clinically elevated anxiety and no autism (HI-ANX; n = 29), and neurotypical adults without elevated anxiety (NT; n = 46). Experiment 1 used an emotion identification task with dynamic stimuli, while Experiment 2 used a static luminance change detection task with emotional- and neutral-expression static photos. The emotions of interest were joy, anger, and fear. Dimensional mixed-effects models showed that autism traits, but not alexithymia, predicted reduced eye fixation across both tasks. Anxious apprehension was negatively related to response time in Experiment 1 and positively related to eye fixation in Experiment 2. Attentional avoidance of negative stimuli occurred at lower levels of autism traits and higher levels of worry traits. The results highlight the contribution of autism traits to emotional processing and suggest additional effects of worry-related traits. En ligne : http://dx.doi.org/10.1177/1362361319830090 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=406