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Local and Global Visual Processing in Autism Spectrum Disorders: Influence of Task and Sample Characteristics and Relation to Symptom Severity / L. VAN EYLEN in Journal of Autism and Developmental Disorders, 48-4 (April 2018)
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Titre : Local and Global Visual Processing in Autism Spectrum Disorders: Influence of Task and Sample Characteristics and Relation to Symptom Severity Type de document : Texte imprimé et/ou numérique Auteurs : L. VAN EYLEN, Auteur ; Bart BOETS, Auteur ; J. STEYAERT, Auteur ; J. WAGEMANS, Auteur ; I. NOENS, Auteur Article en page(s) : p.1359-1381 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders Global processing Local processing Sample characteristics Symptom severity Visual processing Index. décimale : PER Périodiques Résumé : Local and global visual processing abilities and processing style were investigated in individuals with autism spectrum disorder (ASD) versus typically developing individuals, children versus adolescents and boys versus girls. Individuals with ASD displayed more attention to detail in daily life, while laboratory tasks showed slightly reduced global processing abilities, intact local processing abilities, and a more locally oriented processing style. However, the presence of these group differences depended on particular task and sample (i.e., age and gender) characteristics. Most measures of local and global processing did not correlate with each other and were not associated with processing style. Significant associations between local-global processing and ASD symptom severity were observed, but the causality of these associations remains unclear. En ligne : http://dx.doi.org/10.1007/s10803-015-2526-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352
in Journal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1359-1381[article] Local and Global Visual Processing in Autism Spectrum Disorders: Influence of Task and Sample Characteristics and Relation to Symptom Severity [Texte imprimé et/ou numérique] / L. VAN EYLEN, Auteur ; Bart BOETS, Auteur ; J. STEYAERT, Auteur ; J. WAGEMANS, Auteur ; I. NOENS, Auteur . - p.1359-1381.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1359-1381
Mots-clés : Autism spectrum disorders Global processing Local processing Sample characteristics Symptom severity Visual processing Index. décimale : PER Périodiques Résumé : Local and global visual processing abilities and processing style were investigated in individuals with autism spectrum disorder (ASD) versus typically developing individuals, children versus adolescents and boys versus girls. Individuals with ASD displayed more attention to detail in daily life, while laboratory tasks showed slightly reduced global processing abilities, intact local processing abilities, and a more locally oriented processing style. However, the presence of these group differences depended on particular task and sample (i.e., age and gender) characteristics. Most measures of local and global processing did not correlate with each other and were not associated with processing style. Significant associations between local-global processing and ASD symptom severity were observed, but the causality of these associations remains unclear. En ligne : http://dx.doi.org/10.1007/s10803-015-2526-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352 Local-global processing approaches in older autistic adults: A matched control study using RCFT and WAIS-IV / Roeliena C. D. DAVIDS in Research in Autism Spectrum Disorders, 78 (October 2020)
[article]
Titre : Local-global processing approaches in older autistic adults: A matched control study using RCFT and WAIS-IV Type de document : Texte imprimé et/ou numérique Auteurs : Roeliena C. D. DAVIDS, Auteur ; Yvonne GROEN, Auteur ; Ina J. BERG, Auteur ; Oliver TUCHA, Auteur ; Ingrid D. C. VAN BALKOM, Auteur Article en page(s) : 101655 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Adult Neuropsychological assessment Local processing Global processing Qualitative scoring Index. décimale : PER Périodiques Résumé : Background Research on information processing of older adults with autism spectrum disorder (ASD) is scarce, which is a caveat because findings in children may not apply to (older) autistic adults. This study examines visual local-global processing approaches in older autistic adults. Method The Rey-Osterrieth Complex Figure Test (RCFT) is a popular measure of visual-constructional ability, organisational strategy and memory. In this matched-control study, we explore if the qualitative and quantitative performance on the RCFT can be used as an operationalisation of central coherence in autistic older adults (n = 36; ages 50?84 years), and whether RCFT performance associates with autism-symptoms. WAIS-IV scores were also obtained to test for local-global differences in performance. Results No evidence was found for deviating processing approaches on the RCFT (both quantitative and qualitative) in the ASD group, although copying the RCFT was significantly slower. The WAIS-IV showed no differences between participant-groups, except for a significantly better performance on Visual Puzzles by autistic participants. Conclusions Using visual local-global processing tests common to clinical practice, this study provides no evidence for a weak central coherence but some support for enhanced perceptual functioning in late-diagnosed high functioning older autistic adults. There was no evidence for altered strategic approaches during the completion of a complex visual information processing task (RCFT). Combining a quantitative and a qualitative scoring system of visual information processing tasks (such as RCFT) can elucidate the preferred visual information processing style in autistic individuals. En ligne : https://doi.org/10.1016/j.rasd.2020.101655 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433
in Research in Autism Spectrum Disorders > 78 (October 2020) . - 101655[article] Local-global processing approaches in older autistic adults: A matched control study using RCFT and WAIS-IV [Texte imprimé et/ou numérique] / Roeliena C. D. DAVIDS, Auteur ; Yvonne GROEN, Auteur ; Ina J. BERG, Auteur ; Oliver TUCHA, Auteur ; Ingrid D. C. VAN BALKOM, Auteur . - 101655.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 78 (October 2020) . - 101655
Mots-clés : Autism spectrum disorder Adult Neuropsychological assessment Local processing Global processing Qualitative scoring Index. décimale : PER Périodiques Résumé : Background Research on information processing of older adults with autism spectrum disorder (ASD) is scarce, which is a caveat because findings in children may not apply to (older) autistic adults. This study examines visual local-global processing approaches in older autistic adults. Method The Rey-Osterrieth Complex Figure Test (RCFT) is a popular measure of visual-constructional ability, organisational strategy and memory. In this matched-control study, we explore if the qualitative and quantitative performance on the RCFT can be used as an operationalisation of central coherence in autistic older adults (n = 36; ages 50?84 years), and whether RCFT performance associates with autism-symptoms. WAIS-IV scores were also obtained to test for local-global differences in performance. Results No evidence was found for deviating processing approaches on the RCFT (both quantitative and qualitative) in the ASD group, although copying the RCFT was significantly slower. The WAIS-IV showed no differences between participant-groups, except for a significantly better performance on Visual Puzzles by autistic participants. Conclusions Using visual local-global processing tests common to clinical practice, this study provides no evidence for a weak central coherence but some support for enhanced perceptual functioning in late-diagnosed high functioning older autistic adults. There was no evidence for altered strategic approaches during the completion of a complex visual information processing task (RCFT). Combining a quantitative and a qualitative scoring system of visual information processing tasks (such as RCFT) can elucidate the preferred visual information processing style in autistic individuals. En ligne : https://doi.org/10.1016/j.rasd.2020.101655 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433 Modulation of Global and Local Processing Biases in Adults with Autistic-like Traits / Michael C. W. ENGLISH in Journal of Autism and Developmental Disorders, 47-9 (September 2017)
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Titre : Modulation of Global and Local Processing Biases in Adults with Autistic-like Traits Type de document : Texte imprimé et/ou numérique Auteurs : Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur Article en page(s) : p.2757-2769 Langues : Anglais (eng) Mots-clés : Attention Global processing Local processing Autistic traits Autism Hierarchical figures Continuous performance task Attentional training Index. décimale : PER Périodiques Résumé : Previous work shows that doing a continuous performance task (CPT) shifts attentional biases in neurotypical individuals towards global aspects of hierarchical Navon figures by selectively activating right hemisphere regions associated with global processing. The present study examines whether CPT can induce similar modulations of attention in individuals with high levels of autistic traits who typically show global processing impairments. Participants categorized global or local aspects of Navon figures in pre- and post-CPT blocks. Post-CPT, high trait individuals showed increased global interference during local categorization. This result suggests that CPT may be useful for temporarily enhancing global processing in individuals with high levels of autistic traits and possibly those diagnosed with autism. En ligne : https://doi.org/10.1007/s10803-017-3198-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=315
in Journal of Autism and Developmental Disorders > 47-9 (September 2017) . - p.2757-2769[article] Modulation of Global and Local Processing Biases in Adults with Autistic-like Traits [Texte imprimé et/ou numérique] / Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur . - p.2757-2769.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 47-9 (September 2017) . - p.2757-2769
Mots-clés : Attention Global processing Local processing Autistic traits Autism Hierarchical figures Continuous performance task Attentional training Index. décimale : PER Périodiques Résumé : Previous work shows that doing a continuous performance task (CPT) shifts attentional biases in neurotypical individuals towards global aspects of hierarchical Navon figures by selectively activating right hemisphere regions associated with global processing. The present study examines whether CPT can induce similar modulations of attention in individuals with high levels of autistic traits who typically show global processing impairments. Participants categorized global or local aspects of Navon figures in pre- and post-CPT blocks. Post-CPT, high trait individuals showed increased global interference during local categorization. This result suggests that CPT may be useful for temporarily enhancing global processing in individuals with high levels of autistic traits and possibly those diagnosed with autism. En ligne : https://doi.org/10.1007/s10803-017-3198-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=315 Seeing the Forest and the Trees: Default Local Processing in Individuals with High Autistic Traits Does Not Come at the Expense of Global Attention / R. A. STEVENSON in Journal of Autism and Developmental Disorders, 48-4 (April 2018)
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Titre : Seeing the Forest and the Trees: Default Local Processing in Individuals with High Autistic Traits Does Not Come at the Expense of Global Attention Type de document : Texte imprimé et/ou numérique Auteurs : R. A. STEVENSON, Auteur ; S. Z. SUN, Auteur ; N. HAZLETT, Auteur ; J. S. CANT, Auteur ; Morgan D. BARENSE, Auteur ; S. FERBER, Auteur Article en page(s) : p.1382-1396 Langues : Anglais (eng) Mots-clés : Attention Autism spectrum disorder Composite-face effect Face recognition Global processing Local processing Sensory processing Vision Index. décimale : PER Périodiques Résumé : Atypical sensory perception is one of the most ubiquitous symptoms of autism, including a tendency towards a local-processing bias. We investigated whether local-processing biases were associated with global-processing impairments on a global/local attentional-scope paradigm in conjunction with a composite-face task. Behavioural results were related to individuals' levels of autistic traits, specifically the Attention to Detail subscale of the Autism Quotient, and the Sensory Profile Questionnaire. Individuals showing high rates of Attention to Detail were more susceptible to global attentional-scope manipulations, suggesting that local-processing biases associated with Attention to Detail do not come at the cost of a global-processing deficit, but reflect a difference in default global versus local bias. This relationship operated at the attentional/perceptual level, but not response criterion. En ligne : http://dx.doi.org/10.1007/s10803-016-2711-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352
in Journal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1382-1396[article] Seeing the Forest and the Trees: Default Local Processing in Individuals with High Autistic Traits Does Not Come at the Expense of Global Attention [Texte imprimé et/ou numérique] / R. A. STEVENSON, Auteur ; S. Z. SUN, Auteur ; N. HAZLETT, Auteur ; J. S. CANT, Auteur ; Morgan D. BARENSE, Auteur ; S. FERBER, Auteur . - p.1382-1396.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1382-1396
Mots-clés : Attention Autism spectrum disorder Composite-face effect Face recognition Global processing Local processing Sensory processing Vision Index. décimale : PER Périodiques Résumé : Atypical sensory perception is one of the most ubiquitous symptoms of autism, including a tendency towards a local-processing bias. We investigated whether local-processing biases were associated with global-processing impairments on a global/local attentional-scope paradigm in conjunction with a composite-face task. Behavioural results were related to individuals' levels of autistic traits, specifically the Attention to Detail subscale of the Autism Quotient, and the Sensory Profile Questionnaire. Individuals showing high rates of Attention to Detail were more susceptible to global attentional-scope manipulations, suggesting that local-processing biases associated with Attention to Detail do not come at the cost of a global-processing deficit, but reflect a difference in default global versus local bias. This relationship operated at the attentional/perceptual level, but not response criterion. En ligne : http://dx.doi.org/10.1007/s10803-016-2711-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352 A review of behavioural and electrophysiological studies on auditory processing and speech perception in autism spectrum disorders / Birgitt HAESEN in Research in Autism Spectrum Disorders, 5-2 (April-June 2011)
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Titre : A review of behavioural and electrophysiological studies on auditory processing and speech perception in autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Birgitt HAESEN, Auteur ; Bart BOETS, Auteur ; Johan WAGEMANS, Auteur Année de publication : 2011 Article en page(s) : p.701-714 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Auditory processing Speech perception Local processing Global processing Index. décimale : PER Périodiques Résumé : This literature review aims to interpret behavioural and electrophysiological studies addressing auditory processing in children and adults with autism spectrum disorder (ASD). Data have been organised according to the applied methodology (behavioural versus electrophysiological studies) and according to stimulus complexity (pure versus complex tones versus speech sounds). In line with the weak central coherence (WCC) theory of autism we aimed to investigate whether individuals with ASD show a more locally and less globally oriented processing style in the auditory modality. To avoid the possible confound of stimulus complexity, this influence was taken into account as an additional hypothesis. The review reveals that the identification and discrimination of isolated acoustic features (in particular pitch processing) is generally intact or enhanced in individuals with ASD, for pure as well as for complex tones and speech sounds. It thus appears that the local processing advantage is not influenced by stimulus complexity. Individuals with ASD are also less susceptible to global interference of speech-like material. A deficit in global auditory processing, however, is less universally confirmed. We propose that the observed pattern of auditory enhancements and deficits in ASD may be related to an atypical pattern of right hemisphere dominance. As the right and left hemisphere are relatively more specialized in spectral versus temporal auditory processing, respectively, right hemisphere dominance in ASD could provoke enhanced pitch and vowel processing, whereas left hemisphere deficiencies might explain speech perception problems and temporal processing deficits. En ligne : http://dx.doi.org/10.1016/j.rasd.2010.11.006 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114
in Research in Autism Spectrum Disorders > 5-2 (April-June 2011) . - p.701-714[article] A review of behavioural and electrophysiological studies on auditory processing and speech perception in autism spectrum disorders [Texte imprimé et/ou numérique] / Birgitt HAESEN, Auteur ; Bart BOETS, Auteur ; Johan WAGEMANS, Auteur . - 2011 . - p.701-714.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 5-2 (April-June 2011) . - p.701-714
Mots-clés : Autism spectrum disorder Auditory processing Speech perception Local processing Global processing Index. décimale : PER Périodiques Résumé : This literature review aims to interpret behavioural and electrophysiological studies addressing auditory processing in children and adults with autism spectrum disorder (ASD). Data have been organised according to the applied methodology (behavioural versus electrophysiological studies) and according to stimulus complexity (pure versus complex tones versus speech sounds). In line with the weak central coherence (WCC) theory of autism we aimed to investigate whether individuals with ASD show a more locally and less globally oriented processing style in the auditory modality. To avoid the possible confound of stimulus complexity, this influence was taken into account as an additional hypothesis. The review reveals that the identification and discrimination of isolated acoustic features (in particular pitch processing) is generally intact or enhanced in individuals with ASD, for pure as well as for complex tones and speech sounds. It thus appears that the local processing advantage is not influenced by stimulus complexity. Individuals with ASD are also less susceptible to global interference of speech-like material. A deficit in global auditory processing, however, is less universally confirmed. We propose that the observed pattern of auditory enhancements and deficits in ASD may be related to an atypical pattern of right hemisphere dominance. As the right and left hemisphere are relatively more specialized in spectral versus temporal auditory processing, respectively, right hemisphere dominance in ASD could provoke enhanced pitch and vowel processing, whereas left hemisphere deficiencies might explain speech perception problems and temporal processing deficits. En ligne : http://dx.doi.org/10.1016/j.rasd.2010.11.006 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114 PermalinkChildren with ASD Show Impaired Item-Space Recollection, But Preserved Item-Color Recollection / Lindsey N. MOONEY in Autism Research, 13-11 (November 2020)
PermalinkIntact recognition, but attenuated adaptation, for biological motion in youth with autism spectrum disorder / Jeroen J. A. VAN BOXTEL in Autism Research, 9-10 (October 2016)
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