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Spatial Frequency Priming of Scene Perception in Adolescents With and Without ASD / Steven VANMARCKE in Journal of Autism and Developmental Disorders, 47-7 (July 2017)
[article]
Titre : Spatial Frequency Priming of Scene Perception in Adolescents With and Without ASD Type de document : Texte imprimé et/ou numérique Auteurs : Steven VANMARCKE, Auteur ; Ilse NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur Article en page(s) : p.2023-2038 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders Scene perception Coarse-to-fine processing Spatial frequency Local–global information Index. décimale : PER Périodiques Résumé : While most typically developing (TD) participants have a coarse-to-fine processing style, people with autism spectrum disorder (ASD) seem to be less globally and more locally biased when processing visual information. The stimulus-specific spatial frequency content might be directly relevant to determine this temporal hierarchy of visual information processing in people with and without ASD. We implemented a semantic priming task in which (in)congruent coarse and/or fine spatial information preceded target categorization. Our results indicated that adolescents with ASD made more categorization errors than TD adolescents and needed more time to process the prime stimuli. Simultaneously, however, our findings argued for a processing advantage in ASD, when the prime stimulus contains detailed spatial information and presentation time permits explicit visual processing. En ligne : https://doi.org/10.1007/s10803-017-3123-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=313
in Journal of Autism and Developmental Disorders > 47-7 (July 2017) . - p.2023-2038[article] Spatial Frequency Priming of Scene Perception in Adolescents With and Without ASD [Texte imprimé et/ou numérique] / Steven VANMARCKE, Auteur ; Ilse NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur . - p.2023-2038.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 47-7 (July 2017) . - p.2023-2038
Mots-clés : Autism spectrum disorders Scene perception Coarse-to-fine processing Spatial frequency Local–global information Index. décimale : PER Périodiques Résumé : While most typically developing (TD) participants have a coarse-to-fine processing style, people with autism spectrum disorder (ASD) seem to be less globally and more locally biased when processing visual information. The stimulus-specific spatial frequency content might be directly relevant to determine this temporal hierarchy of visual information processing in people with and without ASD. We implemented a semantic priming task in which (in)congruent coarse and/or fine spatial information preceded target categorization. Our results indicated that adolescents with ASD made more categorization errors than TD adolescents and needed more time to process the prime stimuli. Simultaneously, however, our findings argued for a processing advantage in ASD, when the prime stimulus contains detailed spatial information and presentation time permits explicit visual processing. En ligne : https://doi.org/10.1007/s10803-017-3123-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=313 Brief Report: Developing Spatial Frequency Biases for Face Recognition in Autism and Williams Syndrome / Hayley C. LEONARD in Journal of Autism and Developmental Disorders, 41-7 (July 2011)
[article]
Titre : Brief Report: Developing Spatial Frequency Biases for Face Recognition in Autism and Williams Syndrome Type de document : Texte imprimé et/ou numérique Auteurs : Hayley C. LEONARD, Auteur ; Dagmara ANNAZ, Auteur ; Annette KARMILOFF-SMITH, Auteur ; Mark H. JOHNSON, Auteur Année de publication : 2011 Article en page(s) : p.968-973 Langues : Anglais (eng) Mots-clés : Face recognition Spatial frequency Development Autism Williams syndrome Index. décimale : PER Périodiques Résumé : The current study investigated whether contrasting face recognition abilities in autism and Williams syndrome could be explained by different spatial frequency biases over developmental time. Typically-developing children and groups with Williams syndrome and autism were asked to recognise faces in which low, middle and high spatial frequency bands were masked. All three groups demonstrated a gradual specialisation toward the mid-band. However, while the use of high spatial frequencies decreased in control and autism groups over development, the Williams syndrome group did not display a bias toward this band at any point. These data demonstrate that typical outcomes can be achieved through atypical developmental processes, and confirm the importance of cross-syndrome studies in the investigation of developmental disorders. En ligne : http://dx.doi.org/10.1007/s10803-010-1115-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=130
in Journal of Autism and Developmental Disorders > 41-7 (July 2011) . - p.968-973[article] Brief Report: Developing Spatial Frequency Biases for Face Recognition in Autism and Williams Syndrome [Texte imprimé et/ou numérique] / Hayley C. LEONARD, Auteur ; Dagmara ANNAZ, Auteur ; Annette KARMILOFF-SMITH, Auteur ; Mark H. JOHNSON, Auteur . - 2011 . - p.968-973.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 41-7 (July 2011) . - p.968-973
Mots-clés : Face recognition Spatial frequency Development Autism Williams syndrome Index. décimale : PER Périodiques Résumé : The current study investigated whether contrasting face recognition abilities in autism and Williams syndrome could be explained by different spatial frequency biases over developmental time. Typically-developing children and groups with Williams syndrome and autism were asked to recognise faces in which low, middle and high spatial frequency bands were masked. All three groups demonstrated a gradual specialisation toward the mid-band. However, while the use of high spatial frequencies decreased in control and autism groups over development, the Williams syndrome group did not display a bias toward this band at any point. These data demonstrate that typical outcomes can be achieved through atypical developmental processes, and confirm the importance of cross-syndrome studies in the investigation of developmental disorders. En ligne : http://dx.doi.org/10.1007/s10803-010-1115-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=130 Priming Facial Gender and Emotional Valence: The Influence of Spatial Frequency on Face Perception in ASD / Steven VANMARCKE in Journal of Autism and Developmental Disorders, 47-4 (April 2017)
[article]
Titre : Priming Facial Gender and Emotional Valence: The Influence of Spatial Frequency on Face Perception in ASD Type de document : Texte imprimé et/ou numérique Auteurs : Steven VANMARCKE, Auteur ; Johan WAGEMANS, Auteur Article en page(s) : p.927-946 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Face perception Vision research Spatial frequency Index. décimale : PER Périodiques Résumé : Adolescents with and without autism spectrum disorder (ASD) performed two priming experiments in which they implicitly processed a prime stimulus, containing high and/or low spatial frequency information, and then explicitly categorized a target face either as male/female (gender task) or as positive/negative (Valence task). Adolescents with ASD made more categorization errors than typically developing adolescents. They also showed an age-dependent improvement in categorization speed and had more difficulties with categorizing facial expressions than gender. However, in neither of the categorization tasks, we found group differences in the processing of coarse versus fine prime information. This contradicted our expectations, and indicated that the perceptual differences between adolescents with and without ASD critically depended on the processing time available for the primes. En ligne : http://dx.doi.org/10.1007/s10803-016-3017-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304
in Journal of Autism and Developmental Disorders > 47-4 (April 2017) . - p.927-946[article] Priming Facial Gender and Emotional Valence: The Influence of Spatial Frequency on Face Perception in ASD [Texte imprimé et/ou numérique] / Steven VANMARCKE, Auteur ; Johan WAGEMANS, Auteur . - p.927-946.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 47-4 (April 2017) . - p.927-946
Mots-clés : Autism spectrum disorder Face perception Vision research Spatial frequency Index. décimale : PER Périodiques Résumé : Adolescents with and without autism spectrum disorder (ASD) performed two priming experiments in which they implicitly processed a prime stimulus, containing high and/or low spatial frequency information, and then explicitly categorized a target face either as male/female (gender task) or as positive/negative (Valence task). Adolescents with ASD made more categorization errors than typically developing adolescents. They also showed an age-dependent improvement in categorization speed and had more difficulties with categorizing facial expressions than gender. However, in neither of the categorization tasks, we found group differences in the processing of coarse versus fine prime information. This contradicted our expectations, and indicated that the perceptual differences between adolescents with and without ASD critically depended on the processing time available for the primes. En ligne : http://dx.doi.org/10.1007/s10803-016-3017-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304 Is It Fear? Similar Brain Responses to Fearful and Neutral Faces in Infants with a Heightened Likelihood for Autism Spectrum Disorder / Renata DI LORENZO in Journal of Autism and Developmental Disorders, 51-3 (March 2021)
[article]
Titre : Is It Fear? Similar Brain Responses to Fearful and Neutral Faces in Infants with a Heightened Likelihood for Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Renata DI LORENZO, Auteur ; Nicolette M. MUNSTERS, Auteur ; Emma K. WARD, Auteur ; Maretha DE JONGE, Auteur ; Chantal KEMNER, Auteur ; Carlijn VAN DEN BOOMEN, Auteur Article en page(s) : p.961-972 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Emotion Endophenotype Event-related potentials Infants Spatial frequency Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder (ASD) show atypical processing of facial expressions. Research with autistic toddlers suggests that abnormalities in processing of spatial frequencies (SFs) contribute to such differences. The current event-related-potential (ERP) study investigated differences between 10-month-old infants with high- and low-likelihood for ASD in SF processing and in discrimination of fearful and neutral faces, filtered to contain specific SF. Results indicate no group differences in general processing of higher (HSF, detailed) and lower-SF (LSF, global) information. However, unlike low-likelihood infants, high-likelihood infants do not discriminate between facial expressions when either the LSF or HSF information is available. Combined with previous findings in toddlers, the current results indicate a developmental delay in efficient processing of facial expressions in ASD. En ligne : http://dx.doi.org/10.1007/s10803-020-04560-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=443
in Journal of Autism and Developmental Disorders > 51-3 (March 2021) . - p.961-972[article] Is It Fear? Similar Brain Responses to Fearful and Neutral Faces in Infants with a Heightened Likelihood for Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Renata DI LORENZO, Auteur ; Nicolette M. MUNSTERS, Auteur ; Emma K. WARD, Auteur ; Maretha DE JONGE, Auteur ; Chantal KEMNER, Auteur ; Carlijn VAN DEN BOOMEN, Auteur . - p.961-972.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 51-3 (March 2021) . - p.961-972
Mots-clés : Autism spectrum disorder Emotion Endophenotype Event-related potentials Infants Spatial frequency Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder (ASD) show atypical processing of facial expressions. Research with autistic toddlers suggests that abnormalities in processing of spatial frequencies (SFs) contribute to such differences. The current event-related-potential (ERP) study investigated differences between 10-month-old infants with high- and low-likelihood for ASD in SF processing and in discrimination of fearful and neutral faces, filtered to contain specific SF. Results indicate no group differences in general processing of higher (HSF, detailed) and lower-SF (LSF, global) information. However, unlike low-likelihood infants, high-likelihood infants do not discriminate between facial expressions when either the LSF or HSF information is available. Combined with previous findings in toddlers, the current results indicate a developmental delay in efficient processing of facial expressions in ASD. En ligne : http://dx.doi.org/10.1007/s10803-020-04560-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=443 The developmental trajectory of contrast sensitivity in autism spectrum disorder / Jacalyn GUY in Autism Research, 9-8 (August 2016)
[article]
Titre : The developmental trajectory of contrast sensitivity in autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Jacalyn GUY, Auteur ; Laurent MOTTRON, Auteur ; Claude BERTHIAUME, Auteur ; Armando BERTONE, Auteur Article en page(s) : p.866-878 Langues : Anglais (eng) Mots-clés : autism spectrum disorder low-level perception development spatial frequency contrast sensitivity Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorder (ASD) is characterized by a detail-driven visual processing strategy, evidence for which has been based largely on cross-sectional studies in small participant groups of limited age ranges. It is therefore unknown when sensitivity to detailed information emerges and develops in ASD. Contrast sensitivity to sinusoidal gratings of different spatial frequencies (0.5, 1, 2, 4, and 8 cycles per degree (cpd)) was measured for 34 participants with ASD and 55 typically developing participants (aged 6–16 years). Cross-sectional, developmental trajectories were constructed to examine within and between group differences across the range of spatial frequencies tested. Developmental trajectories indicated that sensitivity across low (i.e., 0.5 and 1 cpd) and mid (2 and 4 cpd) spatial frequencies varied by chronological age within each group, with mid frequencies developing at a more significant rate than low frequencies. There was no overall difference between groups in terms of the relationship of sensitivity and age across spatial frequencies, yet the ASD group had an overall lower level of sensitivity. Closer examination revealed that the youngest participants with ASD had a reduced sensitivity for mid frequencies. Moreover, the ASD group showed a statistically significant developmental relationship at 8 cpd, which suggests that a trend for increased sensitivity to early detailed information may manifest beyond the ages tested. These findings demonstrate a differential development of contrast sensitivity for spatial frequencies in ASD and underscore the need to better identify what drives such differences in the “building blocks” of visual perception. Autism Res 2016, 9: 866–878. © 2015 En ligne : http://dx.doi.org/10.1002/aur.1579 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=293
in Autism Research > 9-8 (August 2016) . - p.866-878[article] The developmental trajectory of contrast sensitivity in autism spectrum disorder [Texte imprimé et/ou numérique] / Jacalyn GUY, Auteur ; Laurent MOTTRON, Auteur ; Claude BERTHIAUME, Auteur ; Armando BERTONE, Auteur . - p.866-878.
Langues : Anglais (eng)
in Autism Research > 9-8 (August 2016) . - p.866-878
Mots-clés : autism spectrum disorder low-level perception development spatial frequency contrast sensitivity Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorder (ASD) is characterized by a detail-driven visual processing strategy, evidence for which has been based largely on cross-sectional studies in small participant groups of limited age ranges. It is therefore unknown when sensitivity to detailed information emerges and develops in ASD. Contrast sensitivity to sinusoidal gratings of different spatial frequencies (0.5, 1, 2, 4, and 8 cycles per degree (cpd)) was measured for 34 participants with ASD and 55 typically developing participants (aged 6–16 years). Cross-sectional, developmental trajectories were constructed to examine within and between group differences across the range of spatial frequencies tested. Developmental trajectories indicated that sensitivity across low (i.e., 0.5 and 1 cpd) and mid (2 and 4 cpd) spatial frequencies varied by chronological age within each group, with mid frequencies developing at a more significant rate than low frequencies. There was no overall difference between groups in terms of the relationship of sensitivity and age across spatial frequencies, yet the ASD group had an overall lower level of sensitivity. Closer examination revealed that the youngest participants with ASD had a reduced sensitivity for mid frequencies. Moreover, the ASD group showed a statistically significant developmental relationship at 8 cpd, which suggests that a trend for increased sensitivity to early detailed information may manifest beyond the ages tested. These findings demonstrate a differential development of contrast sensitivity for spatial frequencies in ASD and underscore the need to better identify what drives such differences in the “building blocks” of visual perception. Autism Res 2016, 9: 866–878. © 2015 En ligne : http://dx.doi.org/10.1002/aur.1579 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=293 Voluntary attention in Asperger's syndrome: Brain electrical oscillation and phase-synchronization during facial emotion recognition / Yi-Li TSENG in Research in Autism Spectrum Disorders, 13-14 (May 2015)
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