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Auteur Peter CHAPMAN |
Documents disponibles écrits par cet auteur (4)



Brief Report: How Adolescents with ASD Process Social Information in Complex Scenes. Combining Evidence from Eye Movements and Verbal Descriptions / Megan FREETH in Journal of Autism and Developmental Disorders, 41-3 (March 2011)
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Titre : Brief Report: How Adolescents with ASD Process Social Information in Complex Scenes. Combining Evidence from Eye Movements and Verbal Descriptions Type de document : Texte imprimé et/ou numérique Auteurs : Megan FREETH, Auteur ; Danielle ROPAR, Auteur ; Peter MITCHELL, Auteur ; Peter CHAPMAN, Auteur ; Sarah LOHER, Auteur Année de publication : 2011 Article en page(s) : p.364-371 Langues : Anglais (eng) Mots-clés : Transcript analysis Eye tracking Autism Social scenes Gaze following Emotion processing Index. décimale : PER Périodiques Résumé : We investigated attention, encoding and processing of social aspects of complex photographic scenes. Twenty-four high-functioning adolescents (aged 11–16) with ASD and 24 typically developing matched control participants viewed and then described a series of scenes, each containing a person. Analyses of eye movements and verbal descriptions provided converging evidence that both groups displayed general interest in the person in each scene but the salience of the person was reduced for the ASD participants. Nevertheless, the verbal descriptions revealed that participants with ASD frequently processed the observed person’s emotion or mental state without prompting. They also often mentioned eye-gaze direction, and there was evidence from eye movements and verbal descriptions that gaze was followed accurately. The combination of evidence from eye movements and verbal descriptions provides a rich insight into the way stimuli are processed overall. The merits of using these methods within the same paradigm are discussed. En ligne : http://dx.doi.org/10.1007/s10803-010-1053-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=118
in Journal of Autism and Developmental Disorders > 41-3 (March 2011) . - p.364-371[article] Brief Report: How Adolescents with ASD Process Social Information in Complex Scenes. Combining Evidence from Eye Movements and Verbal Descriptions [Texte imprimé et/ou numérique] / Megan FREETH, Auteur ; Danielle ROPAR, Auteur ; Peter MITCHELL, Auteur ; Peter CHAPMAN, Auteur ; Sarah LOHER, Auteur . - 2011 . - p.364-371.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 41-3 (March 2011) . - p.364-371
Mots-clés : Transcript analysis Eye tracking Autism Social scenes Gaze following Emotion processing Index. décimale : PER Périodiques Résumé : We investigated attention, encoding and processing of social aspects of complex photographic scenes. Twenty-four high-functioning adolescents (aged 11–16) with ASD and 24 typically developing matched control participants viewed and then described a series of scenes, each containing a person. Analyses of eye movements and verbal descriptions provided converging evidence that both groups displayed general interest in the person in each scene but the salience of the person was reduced for the ASD participants. Nevertheless, the verbal descriptions revealed that participants with ASD frequently processed the observed person’s emotion or mental state without prompting. They also often mentioned eye-gaze direction, and there was evidence from eye movements and verbal descriptions that gaze was followed accurately. The combination of evidence from eye movements and verbal descriptions provides a rich insight into the way stimuli are processed overall. The merits of using these methods within the same paradigm are discussed. En ligne : http://dx.doi.org/10.1007/s10803-010-1053-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=118 Can Adults With Autism Spectrum Disorders Infer What Happened to Someone From Their Emotional Response? / Sarah A. CASSIDY in Autism Research, 7-1 (February 2014)
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Titre : Can Adults With Autism Spectrum Disorders Infer What Happened to Someone From Their Emotional Response? Type de document : Texte imprimé et/ou numérique Auteurs : Sarah A. CASSIDY, Auteur ; Danielle ROPAR, Auteur ; Peter MITCHELL, Auteur ; Peter CHAPMAN, Auteur Article en page(s) : p.112-123 Langues : Anglais (eng) Mots-clés : autism retrodictive mindreading eye tracking spontaneous emotion recognition face processing Index. décimale : PER Périodiques Résumé : Can adults with autism spectrum disorders (ASD) infer what happened to someone from their emotional response? Millikan has argued that in everyday life, others' emotions are most commonly used to work out the antecedents of behavior, an ability termed retrodictive mindreading. As those with ASD show difficulties interpreting others' emotions, we predicted that these individuals would have difficulty with retrodictive mindreading. Sixteen adults with high-functioning autism or Asperger's syndrome and 19 typically developing adults viewed 21 video clips of people reacting to one of three gifts (chocolate, monopoly money, or a homemade novelty) and then inferred what gift the recipient received and the emotion expressed by that person. Participants' eye movements were recorded while they viewed the videos. Results showed that participants with ASD were only less accurate when inferring who received a chocolate or homemade gift. This difficulty was not due to lack of understanding what emotions were appropriate in response to each gift, as both groups gave consistent gift and emotion inferences significantly above chance (genuine positive for chocolate and feigned positive for homemade). Those with ASD did not look significantly less to the eyes of faces in the videos, and looking to the eyes did not correlate with accuracy on the task. These results suggest that those with ASD are less accurate when retrodicting events involving recognition of genuine and feigned positive emotions, and challenge claims that lack of attention to the eyes causes emotion recognition difficulties in ASD. En ligne : http://dx.doi.org/10.1002/aur.1351 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=227
in Autism Research > 7-1 (February 2014) . - p.112-123[article] Can Adults With Autism Spectrum Disorders Infer What Happened to Someone From Their Emotional Response? [Texte imprimé et/ou numérique] / Sarah A. CASSIDY, Auteur ; Danielle ROPAR, Auteur ; Peter MITCHELL, Auteur ; Peter CHAPMAN, Auteur . - p.112-123.
Langues : Anglais (eng)
in Autism Research > 7-1 (February 2014) . - p.112-123
Mots-clés : autism retrodictive mindreading eye tracking spontaneous emotion recognition face processing Index. décimale : PER Périodiques Résumé : Can adults with autism spectrum disorders (ASD) infer what happened to someone from their emotional response? Millikan has argued that in everyday life, others' emotions are most commonly used to work out the antecedents of behavior, an ability termed retrodictive mindreading. As those with ASD show difficulties interpreting others' emotions, we predicted that these individuals would have difficulty with retrodictive mindreading. Sixteen adults with high-functioning autism or Asperger's syndrome and 19 typically developing adults viewed 21 video clips of people reacting to one of three gifts (chocolate, monopoly money, or a homemade novelty) and then inferred what gift the recipient received and the emotion expressed by that person. Participants' eye movements were recorded while they viewed the videos. Results showed that participants with ASD were only less accurate when inferring who received a chocolate or homemade gift. This difficulty was not due to lack of understanding what emotions were appropriate in response to each gift, as both groups gave consistent gift and emotion inferences significantly above chance (genuine positive for chocolate and feigned positive for homemade). Those with ASD did not look significantly less to the eyes of faces in the videos, and looking to the eyes did not correlate with accuracy on the task. These results suggest that those with ASD are less accurate when retrodicting events involving recognition of genuine and feigned positive emotions, and challenge claims that lack of attention to the eyes causes emotion recognition difficulties in ASD. En ligne : http://dx.doi.org/10.1002/aur.1351 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=227 Do Gaze Cues in Complex Scenes Capture and Direct the Attention of High Functioning Adolescents with ASD? Evidence from Eye-tracking / Megan FREETH in Journal of Autism and Developmental Disorders, 40-5 (May 2010)
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[article]
Titre : Do Gaze Cues in Complex Scenes Capture and Direct the Attention of High Functioning Adolescents with ASD? Evidence from Eye-tracking Type de document : Texte imprimé et/ou numérique Auteurs : Megan FREETH, Auteur ; Danielle ROPAR, Auteur ; P. MITCHELL, Auteur ; Peter CHAPMAN, Auteur Année de publication : 2010 Article en page(s) : p.534-547 Langues : Anglais (eng) Mots-clés : Eye-tracking Autism Social-scenes Gaze-following Time-course-analysis Index. décimale : PER Périodiques Résumé : Visual fixation patterns whilst viewing complex photographic scenes containing one person were studied in 24 high-functioning adolescents with Autism Spectrum Disorders (ASD) and 24 matched typically developing adolescents. Over two different scene presentation durations both groups spent a large, strikingly similar proportion of their viewing time fixating the person’s face. However, time-course analyses revealed differences between groups in priorities of attention to the region of the face containing the eyes. It was also noted that although individuals with ASD were rapidly cued by the gaze direction of the person in the scene, this was not followed by an immediate increase in total fixation duration at the location of gaze, which was the case for typically developing individuals. En ligne : http://dx.doi.org/10.1007/s10803-009-0893-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=100
in Journal of Autism and Developmental Disorders > 40-5 (May 2010) . - p.534-547[article] Do Gaze Cues in Complex Scenes Capture and Direct the Attention of High Functioning Adolescents with ASD? Evidence from Eye-tracking [Texte imprimé et/ou numérique] / Megan FREETH, Auteur ; Danielle ROPAR, Auteur ; P. MITCHELL, Auteur ; Peter CHAPMAN, Auteur . - 2010 . - p.534-547.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 40-5 (May 2010) . - p.534-547
Mots-clés : Eye-tracking Autism Social-scenes Gaze-following Time-course-analysis Index. décimale : PER Périodiques Résumé : Visual fixation patterns whilst viewing complex photographic scenes containing one person were studied in 24 high-functioning adolescents with Autism Spectrum Disorders (ASD) and 24 matched typically developing adolescents. Over two different scene presentation durations both groups spent a large, strikingly similar proportion of their viewing time fixating the person’s face. However, time-course analyses revealed differences between groups in priorities of attention to the region of the face containing the eyes. It was also noted that although individuals with ASD were rapidly cued by the gaze direction of the person in the scene, this was not followed by an immediate increase in total fixation duration at the location of gaze, which was the case for typically developing individuals. En ligne : http://dx.doi.org/10.1007/s10803-009-0893-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=100 Processing of Spontaneous Emotional Responses in Adolescents and Adults with Autism Spectrum Disorders: Effect of Stimulus Type / Sarah A. CASSIDY in Autism Research, 8-5 (October 2015)
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[article]
Titre : Processing of Spontaneous Emotional Responses in Adolescents and Adults with Autism Spectrum Disorders: Effect of Stimulus Type Type de document : Texte imprimé et/ou numérique Auteurs : Sarah A. CASSIDY, Auteur ; Peter MITCHELL, Auteur ; Peter CHAPMAN, Auteur ; Danielle ROPAR, Auteur Article en page(s) : p.534-544 Langues : Anglais (eng) Mots-clés : autism spectrum disorders face perception eye tracking spontaneous emotion recognition retrodictive mindreading social cognition multi-modal processing visual auditory integration Index. décimale : PER Périodiques Résumé : Recent research has shown that adults with autism spectrum disorders (ASD) have difficulty interpreting others' emotional responses, in order to work out what actually happened to them. It is unclear what underlies this difficulty; important cues may be missed from fast paced dynamic stimuli, or spontaneous emotional responses may be too complex for those with ASD to successfully recognise. To explore these possibilities, 17 adolescents and adults with ASD and 17 neurotypical controls viewed 21 videos and pictures of peoples' emotional responses to gifts (chocolate, a handmade novelty or Monopoly money), then inferred what gift the person received and the emotion expressed by the person while eye movements were measured. Participants with ASD were significantly more accurate at distinguishing who received a chocolate or homemade gift from static (compared to dynamic) stimuli, but significantly less accurate when inferring who received Monopoly money from static (compared to dynamic) stimuli. Both groups made similar emotion attributions to each gift in both conditions (positive for chocolate, feigned positive for homemade and confused for Monopoly money). Participants with ASD only made marginally significantly fewer fixations to the eyes of the face, and face of the person than typical controls in both conditions. Results suggest adolescents and adults with ASD can distinguish subtle emotion cues for certain emotions (genuine from feigned positive) when given sufficient processing time, however, dynamic cues are informative for recognising emotion blends (e.g. smiling in confusion). This indicates difficulties processing complex emotion responses in ASD. Autism Res 2015, 8: 534–544. © 2015 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1468 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=270
in Autism Research > 8-5 (October 2015) . - p.534-544[article] Processing of Spontaneous Emotional Responses in Adolescents and Adults with Autism Spectrum Disorders: Effect of Stimulus Type [Texte imprimé et/ou numérique] / Sarah A. CASSIDY, Auteur ; Peter MITCHELL, Auteur ; Peter CHAPMAN, Auteur ; Danielle ROPAR, Auteur . - p.534-544.
Langues : Anglais (eng)
in Autism Research > 8-5 (October 2015) . - p.534-544
Mots-clés : autism spectrum disorders face perception eye tracking spontaneous emotion recognition retrodictive mindreading social cognition multi-modal processing visual auditory integration Index. décimale : PER Périodiques Résumé : Recent research has shown that adults with autism spectrum disorders (ASD) have difficulty interpreting others' emotional responses, in order to work out what actually happened to them. It is unclear what underlies this difficulty; important cues may be missed from fast paced dynamic stimuli, or spontaneous emotional responses may be too complex for those with ASD to successfully recognise. To explore these possibilities, 17 adolescents and adults with ASD and 17 neurotypical controls viewed 21 videos and pictures of peoples' emotional responses to gifts (chocolate, a handmade novelty or Monopoly money), then inferred what gift the person received and the emotion expressed by the person while eye movements were measured. Participants with ASD were significantly more accurate at distinguishing who received a chocolate or homemade gift from static (compared to dynamic) stimuli, but significantly less accurate when inferring who received Monopoly money from static (compared to dynamic) stimuli. Both groups made similar emotion attributions to each gift in both conditions (positive for chocolate, feigned positive for homemade and confused for Monopoly money). Participants with ASD only made marginally significantly fewer fixations to the eyes of the face, and face of the person than typical controls in both conditions. Results suggest adolescents and adults with ASD can distinguish subtle emotion cues for certain emotions (genuine from feigned positive) when given sufficient processing time, however, dynamic cues are informative for recognising emotion blends (e.g. smiling in confusion). This indicates difficulties processing complex emotion responses in ASD. Autism Res 2015, 8: 534–544. © 2015 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1468 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=270