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Auteur Catherine MANNING |
Documents disponibles écrits par cet auteur (5)
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Brief Report: Coherent Motion Processing in Autism: Is Dot Lifetime an Important Parameter? / Catherine MANNING in Journal of Autism and Developmental Disorders, 45-7 (July 2015)
[article]
Titre : Brief Report: Coherent Motion Processing in Autism: Is Dot Lifetime an Important Parameter? Type de document : Texte imprimé et/ou numérique Auteurs : Catherine MANNING, Auteur ; Tony CHARMAN, Auteur ; Elizabeth PELLICANO, Auteur Année de publication : 2015 Article en page(s) : p.2252-2258 Langues : Anglais (eng) Mots-clés : Vision Motion processing Stimulus parameters Temporal integration Correspondence noise Index. décimale : PER Périodiques Résumé : Contrasting reports of reduced and intact sensitivity to coherent motion in autistic individuals may be attributable to stimulus parameters. Here, we investigated whether dot lifetime contributes to elevated thresholds in children with autism. We presented a standard motion coherence task to 31 children with autism and 31 typical children, with both limited and unlimited lifetime conditions. Overall, children had higher thresholds in the limited lifetime condition than in the unlimited lifetime condition. However, children with autism were affected by this manipulation to the same extent as typical children and were equally sensitive to coherent motion. Our results suggest that dot lifetime is not a critical stimulus parameter and speak against pervasive difficulties in coherent motion perception in children with autism. En ligne : http://dx.doi.org/10.1007/s10803-015-2365-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261
in Journal of Autism and Developmental Disorders > 45-7 (July 2015) . - p.2252-2258[article] Brief Report: Coherent Motion Processing in Autism: Is Dot Lifetime an Important Parameter? [Texte imprimé et/ou numérique] / Catherine MANNING, Auteur ; Tony CHARMAN, Auteur ; Elizabeth PELLICANO, Auteur . - 2015 . - p.2252-2258.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 45-7 (July 2015) . - p.2252-2258
Mots-clés : Vision Motion processing Stimulus parameters Temporal integration Correspondence noise Index. décimale : PER Périodiques Résumé : Contrasting reports of reduced and intact sensitivity to coherent motion in autistic individuals may be attributable to stimulus parameters. Here, we investigated whether dot lifetime contributes to elevated thresholds in children with autism. We presented a standard motion coherence task to 31 children with autism and 31 typical children, with both limited and unlimited lifetime conditions. Overall, children had higher thresholds in the limited lifetime condition than in the unlimited lifetime condition. However, children with autism were affected by this manipulation to the same extent as typical children and were equally sensitive to coherent motion. Our results suggest that dot lifetime is not a critical stimulus parameter and speak against pervasive difficulties in coherent motion perception in children with autism. En ligne : http://dx.doi.org/10.1007/s10803-015-2365-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261 Processing Slow and Fast Motion in Children With Autism Spectrum Conditions / Catherine MANNING in Autism Research, 6-6 (December 2013)
[article]
Titre : Processing Slow and Fast Motion in Children With Autism Spectrum Conditions Type de document : Texte imprimé et/ou numérique Auteurs : Catherine MANNING, Auteur ; Tony CHARMAN, Auteur ; Elizabeth PELLICANO, Auteur Année de publication : 2013 Article en page(s) : p.531-541 Langues : Anglais (eng) Mots-clés : autism speed discrimination motion coherence visual motion processing Index. décimale : PER Périodiques Résumé : Consistent with the dorsal stream hypothesis, difficulties processing dynamic information have previously been reported in individuals with autism spectrum conditions (ASC). However, no research has systematically compared motion processing abilities for slow and fast speeds. Here, we measured speed discrimination thresholds and motion coherence thresholds in slow (1.5?deg/sec) and fast (6?deg/sec) speed conditions in children with an ASC aged 7 to 14 years, and age- and ability-matched typically developing children. Unexpectedly, children with ASC were as sensitive as typically developing children to differences in speed at both slow and fast reference speeds. Yet, elevated motion coherence thresholds were found in children with ASC, but in the slow stimulus speed condition only. Rather than having pervasive difficulties in motion processing, as predicted by the dorsal stream hypothesis, these results suggest that children with ASC have a selective difficulty in extracting coherent motion information specifically at slow speeds. Understanding the effects of stimulus parameters such as stimulus speed will be important for resolving discrepancies between previous studies examining motion coherence thresholds in ASC and also for refining theoretical models of altered autistic perception. En ligne : http://dx.doi.org/10.1002/aur.1309 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=221
in Autism Research > 6-6 (December 2013) . - p.531-541[article] Processing Slow and Fast Motion in Children With Autism Spectrum Conditions [Texte imprimé et/ou numérique] / Catherine MANNING, Auteur ; Tony CHARMAN, Auteur ; Elizabeth PELLICANO, Auteur . - 2013 . - p.531-541.
Langues : Anglais (eng)
in Autism Research > 6-6 (December 2013) . - p.531-541
Mots-clés : autism speed discrimination motion coherence visual motion processing Index. décimale : PER Périodiques Résumé : Consistent with the dorsal stream hypothesis, difficulties processing dynamic information have previously been reported in individuals with autism spectrum conditions (ASC). However, no research has systematically compared motion processing abilities for slow and fast speeds. Here, we measured speed discrimination thresholds and motion coherence thresholds in slow (1.5?deg/sec) and fast (6?deg/sec) speed conditions in children with an ASC aged 7 to 14 years, and age- and ability-matched typically developing children. Unexpectedly, children with ASC were as sensitive as typically developing children to differences in speed at both slow and fast reference speeds. Yet, elevated motion coherence thresholds were found in children with ASC, but in the slow stimulus speed condition only. Rather than having pervasive difficulties in motion processing, as predicted by the dorsal stream hypothesis, these results suggest that children with ASC have a selective difficulty in extracting coherent motion information specifically at slow speeds. Understanding the effects of stimulus parameters such as stimulus speed will be important for resolving discrepancies between previous studies examining motion coherence thresholds in ASC and also for refining theoretical models of altered autistic perception. En ligne : http://dx.doi.org/10.1002/aur.1309 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=221 Response to Davis and Plaisted-Grant: Psychophysical data do not support the low-noise account of autism / Catherine MANNING in Autism, 19-3 (April 2015)
[article]
Titre : Response to Davis and Plaisted-Grant: Psychophysical data do not support the low-noise account of autism Type de document : Texte imprimé et/ou numérique Auteurs : Catherine MANNING, Auteur ; Daniel H. BAKER, Auteur Article en page(s) : p.365-366 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361314557164 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=257
in Autism > 19-3 (April 2015) . - p.365-366[article] Response to Davis and Plaisted-Grant: Psychophysical data do not support the low-noise account of autism [Texte imprimé et/ou numérique] / Catherine MANNING, Auteur ; Daniel H. BAKER, Auteur . - p.365-366.
Langues : Anglais (eng)
in Autism > 19-3 (April 2015) . - p.365-366
Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361314557164 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=257 Sensory-inclusive spaces for autistic people: We need to build the evidence base / Catherine MANNING in Autism, 27-6 (August 2023)
[article]
Titre : Sensory-inclusive spaces for autistic people: We need to build the evidence base Type de document : Texte imprimé et/ou numérique Auteurs : Catherine MANNING, Auteur ; Gemma WILLIAMS, Auteur ; Keren MACLENNAN, Auteur Article en page(s) : p.1511-1515 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/13623613231183541 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=509
in Autism > 27-6 (August 2023) . - p.1511-1515[article] Sensory-inclusive spaces for autistic people: We need to build the evidence base [Texte imprimé et/ou numérique] / Catherine MANNING, Auteur ; Gemma WILLIAMS, Auteur ; Keren MACLENNAN, Auteur . - p.1511-1515.
Langues : Anglais (eng)
in Autism > 27-6 (August 2023) . - p.1511-1515
Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/13623613231183541 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=509 Visual integration of direction and orientation information in autistic children / Catherine MANNING in Autism & Developmental Language Impairments, 2 (January-December 2017)
[article]
Titre : Visual integration of direction and orientation information in autistic children Type de document : Texte imprimé et/ou numérique Auteurs : Catherine MANNING, Auteur ; Marc S. TIBBER, Auteur ; Steven C. DAKIN, Auteur Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Background and aimsThe vision of autistic people has been characterised as focused on detail, with a disinclination (or reduced ability) to integrate information into coherent ?wholes?. In contrast to this view, we recently demonstrated enhanced integration of visual motion signals in autistic children compared to typically developing children. Here, we aimed to investigate the robustness of our finding of increased motion integration in autism with a new sample of children and to determine whether increased integration in autistic children would extend to a static, orientation judgement.MethodsWe presented motion and orientation equivalent noise and coherence tasks to 46 autistic children aged 6 to 14 years and 45 typically developing children matched in age and non-verbal IQ. The equivalent noise tasks consisted of two interleaved conditions: a high-noise condition in which children judged the average direction or orientation of elements whose range of direction or orientations was manipulated, and a no-noise condition in which children judged the direction or orientation of elements sharing the same direction or orientation. Equivalent noise modelling provided estimates of internal noise (the precision with which children can estimate the orientation/direction of one element) and global sampling (how many elements children are effectively using to judge the overall orientation/direction). Children also completed coherence tasks in which the proportion of signal elements sharing the same direction or orientation amidst otherwise random noise elements was manipulated. We assessed group differences using a combination of frequentist and Bayesian statistical approaches.ResultsAnalysis of the data in this new sample alone did not provide sufficient evidence either in favour or against the hypothesis of increased integration in autism. However, when combining motion data from this and the original experiment, autistic children exhibited superior integration of direction information in the high-noise condition compared to typically developing children, with similar no-noise and coherence thresholds. Equivalent noise modelling of these data revealed increased sampling in autistic children for motion information but no conclusive evidence for atypical levels of internal noise. There was no evidence of differences between autistic and typically developing children in the orientation equivalent noise and coherence tasks.ConclusionsOverall, autistic children effectively integrated more direction information than typically developing children. However, the groups overlapped considerably and there was substantial individual variability, so that the effect may be difficult to detect in small groups. There was no indication of atypical integration of orientation in the current study, although larger samples will be required in order to provide conclusive evidence.ImplicationsThese results help characterise the nature of sensory processing in autism, which is of high import and relevance given the recent inclusion of sensory symptoms in diagnostic criteria. Increased integration of motion information could potentially lead to feelings of sensory overload in autistic children. If such increased integration is specific to motion information, domain-specific accounts of autistic perception will be required. En ligne : https://doi.org/10.1177/2396941517694626 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=387
in Autism & Developmental Language Impairments > 2 (January-December 2017)[article] Visual integration of direction and orientation information in autistic children [Texte imprimé et/ou numérique] / Catherine MANNING, Auteur ; Marc S. TIBBER, Auteur ; Steven C. DAKIN, Auteur.
Langues : Anglais (eng)
in Autism & Developmental Language Impairments > 2 (January-December 2017)
Index. décimale : PER Périodiques Résumé : Background and aimsThe vision of autistic people has been characterised as focused on detail, with a disinclination (or reduced ability) to integrate information into coherent ?wholes?. In contrast to this view, we recently demonstrated enhanced integration of visual motion signals in autistic children compared to typically developing children. Here, we aimed to investigate the robustness of our finding of increased motion integration in autism with a new sample of children and to determine whether increased integration in autistic children would extend to a static, orientation judgement.MethodsWe presented motion and orientation equivalent noise and coherence tasks to 46 autistic children aged 6 to 14 years and 45 typically developing children matched in age and non-verbal IQ. The equivalent noise tasks consisted of two interleaved conditions: a high-noise condition in which children judged the average direction or orientation of elements whose range of direction or orientations was manipulated, and a no-noise condition in which children judged the direction or orientation of elements sharing the same direction or orientation. Equivalent noise modelling provided estimates of internal noise (the precision with which children can estimate the orientation/direction of one element) and global sampling (how many elements children are effectively using to judge the overall orientation/direction). Children also completed coherence tasks in which the proportion of signal elements sharing the same direction or orientation amidst otherwise random noise elements was manipulated. We assessed group differences using a combination of frequentist and Bayesian statistical approaches.ResultsAnalysis of the data in this new sample alone did not provide sufficient evidence either in favour or against the hypothesis of increased integration in autism. However, when combining motion data from this and the original experiment, autistic children exhibited superior integration of direction information in the high-noise condition compared to typically developing children, with similar no-noise and coherence thresholds. Equivalent noise modelling of these data revealed increased sampling in autistic children for motion information but no conclusive evidence for atypical levels of internal noise. There was no evidence of differences between autistic and typically developing children in the orientation equivalent noise and coherence tasks.ConclusionsOverall, autistic children effectively integrated more direction information than typically developing children. However, the groups overlapped considerably and there was substantial individual variability, so that the effect may be difficult to detect in small groups. There was no indication of atypical integration of orientation in the current study, although larger samples will be required in order to provide conclusive evidence.ImplicationsThese results help characterise the nature of sensory processing in autism, which is of high import and relevance given the recent inclusion of sensory symptoms in diagnostic criteria. Increased integration of motion information could potentially lead to feelings of sensory overload in autistic children. If such increased integration is specific to motion information, domain-specific accounts of autistic perception will be required. En ligne : https://doi.org/10.1177/2396941517694626 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=387