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Auteur SvenOlof DAHLGREN |
Documents disponibles écrits par cet auteur (3)
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Basic reading skills in high-functioning Swedish children with autism spectrum disorders or attention disorder / Jakob ASBERG in Research in Autism Spectrum Disorders, 2-1 (January/March 2008)
[article]
Titre : Basic reading skills in high-functioning Swedish children with autism spectrum disorders or attention disorder Type de document : Texte imprimé et/ou numérique Auteurs : Jakob ASBERG, Auteur ; SvenOlof DAHLGREN, Auteur ; Annika DAHLGREN SANDBERG, Auteur Année de publication : 2008 Article en page(s) : p.95-109 Langues : Anglais (eng) Mots-clés : Autism-spectrum-disorders Attention-disorders Word-decoding Reading-comprehension Index. décimale : PER Périodiques Résumé : High-functioning children with autism spectrum disorders (ASD) have been reported to have an early success in reading. Children with attention disorders such as DAMP or ADHD, on the other hand, often struggle acquiring reading skills. The primary aim of the study was two-fold: (a) to compare reading performance of children with ASD, DAMP and typical development; (b) to examine whether memory functions and verbal and performance IQ related differently to the reading performance depending on diagnosis. Striking similarities were found between clinical groups on performance level and patterns of reading ability. Decoding and reading comprehension difficulties were common in both clinical groups relative to the comparison group matched for mental age. There was a strong association between word decoding fluency and sentence reading comprehension in the clinical groups even after the effect of age and VIQ was partialled out. Further research on cognition, linguistic abilities and educational milieu is warranted to explore the reasons for the word decoding difficulties.
En ligne : http://dx.doi.org/10.1016/j.rasd.2007.03.006 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=330
in Research in Autism Spectrum Disorders > 2-1 (January/March 2008) . - p.95-109[article] Basic reading skills in high-functioning Swedish children with autism spectrum disorders or attention disorder [Texte imprimé et/ou numérique] / Jakob ASBERG, Auteur ; SvenOlof DAHLGREN, Auteur ; Annika DAHLGREN SANDBERG, Auteur . - 2008 . - p.95-109.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 2-1 (January/March 2008) . - p.95-109
Mots-clés : Autism-spectrum-disorders Attention-disorders Word-decoding Reading-comprehension Index. décimale : PER Périodiques Résumé : High-functioning children with autism spectrum disorders (ASD) have been reported to have an early success in reading. Children with attention disorders such as DAMP or ADHD, on the other hand, often struggle acquiring reading skills. The primary aim of the study was two-fold: (a) to compare reading performance of children with ASD, DAMP and typical development; (b) to examine whether memory functions and verbal and performance IQ related differently to the reading performance depending on diagnosis. Striking similarities were found between clinical groups on performance level and patterns of reading ability. Decoding and reading comprehension difficulties were common in both clinical groups relative to the comparison group matched for mental age. There was a strong association between word decoding fluency and sentence reading comprehension in the clinical groups even after the effect of age and VIQ was partialled out. Further research on cognition, linguistic abilities and educational milieu is warranted to explore the reasons for the word decoding difficulties.
En ligne : http://dx.doi.org/10.1016/j.rasd.2007.03.006 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=330 Prosodic traits in speech produced by children with autism spectrum disorders – Perceptual and acoustic measurements / SvenOlof DAHLGREN in Autism & Developmental Language Impairments, 3 (January-December 2018)
[article]
Titre : Prosodic traits in speech produced by children with autism spectrum disorders – Perceptual and acoustic measurements Type de document : Texte imprimé et/ou numérique Auteurs : SvenOlof DAHLGREN, Auteur ; Annika D. SANDBERG, Auteur ; Sofia STRÖMBERGSSON, Auteur ; Lena WENHOV, Auteur ; Maria RASTAM, Auteur ; Ulrika NETTELBLADT, Auteur Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : BackgroundAutism spectrum disorder has been associated with atypical voice characteristics and prosody. In the scientific literature, four different aspects of atypical speech production in autism spectrum disorder have been highlighted; voice quality together with the prosodic aspects pitch, duration and intensity. Studies of prosody in autism spectrum disorder have almost exclusively used perceptual methods. Recently, some studies have used acoustic analyses. In these studies, it has been pointed out that the acoustic differences found are not necessarily perceived as atypical by listeners, which is why it is important to let listeners evaluate perceptual correlates to acoustic findings. The aims of this study were to use both perceptual and acoustic analyses to study prosodic production in children with autism spectrum disorder and to examine if voice and speech characteristics could be used as clinical markers for autism spectrum disorder.MethodEleven children within normal range of intelligence diagnosed with autism spectrum disorder and 11 children with typical development participated. Every child was recorded telling a story elicited with the expression, reception and recall of narrative instrument. Excerpts of one minute were extracted from the audio files creating the material underlying the perceptual ratings and in the acoustic analysis. An evaluation procedure, partly based on a standardized voice evaluation procedure developed for clinical practice in Sweden, was designed for the perceptual judgments and analysis. To capture critical prosodic variables, aspects of prosody based on characteristic features of Swedish prosody, prosodic features known to cause Swedish children with language impairment particular problems and current research of prosodic impairments in children with autism, were used as rating variables. The acoustic analysis was based on the four variables fundamental frequency (fo) average, fo range, fo variation and speech rate, together with the language production-related variable number of words per utterance.ResultsIn the acoustic analysis, no differences were found with regards to fo-related variables or speech rate. However, the children in the autism spectrum disorder-group produced significantly more words per utterance than the typically developing children. The perceptual analysis showed no differences between the groups. Only three children with autism spectrum disorder were correctly identified as such. The narrative ability of these children, according to scores on the narrative assessment profile, was poorer than that of the other eight children. They were also more atypical in fluency and in speech rate. Given the small sample, the results should be interpreted with caution.Conclusions and implicationsThe only difference in prosodic production discovered in the acoustic analysis, namely that children with autism spectrum disorder used more words per utterance than the children in the comparison group, was not detected in the perceptual assessment. This implies that it was not perceived as atypical by expert listeners. The results indicate difficulties in using voice and speech characteristics as markers of autism spectrum disorder in clinical settings. The correct identification of some of the children as having autism spectrum disorder or not also indicates that some children with autism spectrum disorder have a prosodic production sufficiently ?atypical? in combination with a limited ability to tell stories to be perceived. En ligne : https://doi.org/10.1177/2396941518764527 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=387
in Autism & Developmental Language Impairments > 3 (January-December 2018)[article] Prosodic traits in speech produced by children with autism spectrum disorders – Perceptual and acoustic measurements [Texte imprimé et/ou numérique] / SvenOlof DAHLGREN, Auteur ; Annika D. SANDBERG, Auteur ; Sofia STRÖMBERGSSON, Auteur ; Lena WENHOV, Auteur ; Maria RASTAM, Auteur ; Ulrika NETTELBLADT, Auteur.
Langues : Anglais (eng)
in Autism & Developmental Language Impairments > 3 (January-December 2018)
Index. décimale : PER Périodiques Résumé : BackgroundAutism spectrum disorder has been associated with atypical voice characteristics and prosody. In the scientific literature, four different aspects of atypical speech production in autism spectrum disorder have been highlighted; voice quality together with the prosodic aspects pitch, duration and intensity. Studies of prosody in autism spectrum disorder have almost exclusively used perceptual methods. Recently, some studies have used acoustic analyses. In these studies, it has been pointed out that the acoustic differences found are not necessarily perceived as atypical by listeners, which is why it is important to let listeners evaluate perceptual correlates to acoustic findings. The aims of this study were to use both perceptual and acoustic analyses to study prosodic production in children with autism spectrum disorder and to examine if voice and speech characteristics could be used as clinical markers for autism spectrum disorder.MethodEleven children within normal range of intelligence diagnosed with autism spectrum disorder and 11 children with typical development participated. Every child was recorded telling a story elicited with the expression, reception and recall of narrative instrument. Excerpts of one minute were extracted from the audio files creating the material underlying the perceptual ratings and in the acoustic analysis. An evaluation procedure, partly based on a standardized voice evaluation procedure developed for clinical practice in Sweden, was designed for the perceptual judgments and analysis. To capture critical prosodic variables, aspects of prosody based on characteristic features of Swedish prosody, prosodic features known to cause Swedish children with language impairment particular problems and current research of prosodic impairments in children with autism, were used as rating variables. The acoustic analysis was based on the four variables fundamental frequency (fo) average, fo range, fo variation and speech rate, together with the language production-related variable number of words per utterance.ResultsIn the acoustic analysis, no differences were found with regards to fo-related variables or speech rate. However, the children in the autism spectrum disorder-group produced significantly more words per utterance than the typically developing children. The perceptual analysis showed no differences between the groups. Only three children with autism spectrum disorder were correctly identified as such. The narrative ability of these children, according to scores on the narrative assessment profile, was poorer than that of the other eight children. They were also more atypical in fluency and in speech rate. Given the small sample, the results should be interpreted with caution.Conclusions and implicationsThe only difference in prosodic production discovered in the acoustic analysis, namely that children with autism spectrum disorder used more words per utterance than the children in the comparison group, was not detected in the perceptual assessment. This implies that it was not perceived as atypical by expert listeners. The results indicate difficulties in using voice and speech characteristics as markers of autism spectrum disorder in clinical settings. The correct identification of some of the children as having autism spectrum disorder or not also indicates that some children with autism spectrum disorder have a prosodic production sufficiently ?atypical? in combination with a limited ability to tell stories to be perceived. En ligne : https://doi.org/10.1177/2396941518764527 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=387 Referential communication in children with autism spectrum disorder / SvenOlof DAHLGREN in Autism, 12-4 (July 2008)
[article]
Titre : Referential communication in children with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : SvenOlof DAHLGREN, Auteur ; Annika DAHLGREN SANDBERG, Auteur Année de publication : 2008 Article en page(s) : p.335-348 Langues : Anglais (eng) Mots-clés : autism-spectrum-disorder memory referential-communication theory-of-mind Index. décimale : PER Périodiques Résumé : Referential communication was studied in children with autism spectrum disorder (ASD) including children with autism and Asperger syndrome. The aim was to study alternative explanations for the children's communicative problems in such situations. Factors studied were theory of mind, IQ, verbal ability and memory. The main results demonstrated diminished performance in children with autism spectrum disorder, mirroring performance in everyday life, in comparison to verbal IQ and mental age matched typically developing children. Among children with autism spectrum disorders, there was a positive relationship between performance in referential communication and theory of mind. Memory capacity also proved to play a role in success in the task. En ligne : http://dx.doi.org/10.1177/1362361308091648 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535
in Autism > 12-4 (July 2008) . - p.335-348[article] Referential communication in children with autism spectrum disorder [Texte imprimé et/ou numérique] / SvenOlof DAHLGREN, Auteur ; Annika DAHLGREN SANDBERG, Auteur . - 2008 . - p.335-348.
Langues : Anglais (eng)
in Autism > 12-4 (July 2008) . - p.335-348
Mots-clés : autism-spectrum-disorder memory referential-communication theory-of-mind Index. décimale : PER Périodiques Résumé : Referential communication was studied in children with autism spectrum disorder (ASD) including children with autism and Asperger syndrome. The aim was to study alternative explanations for the children's communicative problems in such situations. Factors studied were theory of mind, IQ, verbal ability and memory. The main results demonstrated diminished performance in children with autism spectrum disorder, mirroring performance in everyday life, in comparison to verbal IQ and mental age matched typically developing children. Among children with autism spectrum disorders, there was a positive relationship between performance in referential communication and theory of mind. Memory capacity also proved to play a role in success in the task. En ligne : http://dx.doi.org/10.1177/1362361308091648 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535