Brief Report: Adaptive Functioning in Children with ASD, ADHD and ASD + ADHD / Karen L. ASHWOOD in Journal of Autism and Developmental Disorders, 45-7 (July 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-7 (July 2015) . - p.2235-2242 Titre : Brief Report: Adaptive Functioning in Children with ASD, ADHD and ASD + ADHD Type de document : Texte imprimé et/ou numérique Auteurs : Karen L. ASHWOOD, Auteur ; Charlotte TYE, Auteur ; Bahare AZADI, Auteur ; Sally CARTWRIGHT, Auteur ; Philip ASHERSON, Auteur ; Patrick BOLTON, Auteur Année de publication : 2015 Article en page(s) : p.2235-2242 Langues : Anglais (eng) Mots-clés : Adaptive behaviour  Vineland  Autism  ADHD  Comorbidity Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) often co-occur. Children with ASD and ADHD demonstrate deficits in adaptive functioning, yet pure and comorbid groups have not been directly compared. Vineland Adaptive Behaviour Scales (VABS-II) data were examined in boys with ASD (n = 17), ADHD (n = 31) and ASD + ADHD (n = 38). Results demonstrated lower socialisation and composite scores and greater discrepancy between cognitive and adaptive abilities in the ASD + ADHD group compared to the ADHD-only group. Significant associations were shown between reduced adaptive functioning and autism symptoms, but not ADHD symptoms. Children with ASD + ADHD present with exacerbated impairments in adaptive functioning relative to children with ADHD, associated with ASD symptoms. Disentangling variation in adaptive skills may aid the assessment of complex cases. En ligne : http://dx.doi.org/10.1007/s10803-014-2352-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261 [article] Brief Report: Adaptive Functioning in Children with ASD, ADHD and ASD + ADHD [Texte imprimé et/ou numérique] / Karen L. ASHWOOD, Auteur ; Charlotte TYE, Auteur ; Bahare AZADI, Auteur ; Sally CARTWRIGHT, Auteur ; Philip ASHERSON, Auteur ; Patrick BOLTON, Auteur . - 2015 . - p.2235-2242. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-7 (July 2015) . - p.2235-2242 Mots-clés : Adaptive behaviour  Vineland  Autism  ADHD  Comorbidity Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) often co-occur. Children with ASD and ADHD demonstrate deficits in adaptive functioning, yet pure and comorbid groups have not been directly compared. Vineland Adaptive Behaviour Scales (VABS-II) data were examined in boys with ASD (n = 17), ADHD (n = 31) and ASD + ADHD (n = 38). Results demonstrated lower socialisation and composite scores and greater discrepancy between cognitive and adaptive abilities in the ASD + ADHD group compared to the ADHD-only group. Significant associations were shown between reduced adaptive functioning and autism symptoms, but not ADHD symptoms. Children with ASD + ADHD present with exacerbated impairments in adaptive functioning relative to children with ADHD, associated with ASD symptoms. Disentangling variation in adaptive skills may aid the assessment of complex cases. En ligne : http://dx.doi.org/10.1007/s10803-014-2352-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261

Response time variability under slow and fast-incentive conditions in children with ASD, ADHD and ASD+ADHD / Charlotte TYE in Journal of Child Psychology and Psychiatry, 57-12 (December 2016)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 57-12 (December 2016) . - p.1414-1423 Titre : Response time variability under slow and fast-incentive conditions in children with ASD, ADHD and ASD+ADHD Type de document : Texte imprimé et/ou numérique Auteurs : Charlotte TYE, Auteur ; Katherine A. JOHNSON, Auteur ; Simon P. KELLY, Auteur ; Philip ASHERSON, Auteur ; Jonna KUNTSI, Auteur ; Karen L. ASHWOOD, Auteur ; Bahare AZADI, Auteur ; Patrick BOLTON, Auteur ; Gráinne MCLOUGHLIN, Auteur Article en page(s) : p.1414-1423 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  attention deficit hyperactivity disorder  cognition  comorbidity  reaction time variability Index. décimale : PER Périodiques Résumé : Background Attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) show significant behavioural and genetic overlap. Both ADHD and ASD are characterised by poor performance on a range of cognitive tasks. In particular, increased response time variability (RTV) is a promising indicator of risk for both ADHD and ASD. However, it is not clear whether different indices of RTV and changes to RTV according to task conditions are able to discriminate between the two disorders. Methods Children with ASD (n = 19), ADHD (n = 18), ASD + ADHD (n = 29) and typically developing controls (TDC; n = 26) performed a four-choice RT task with slow-baseline and fast-incentive conditions. Performance was characterised by mean RT (MRT), standard deviation of RT (SD-RT), coefficient of variation (CV) and ex-Gaussian distribution measures of Mu, Sigma and Tau. Results In the slow-baseline condition, categorical diagnoses and trait measures converged to indicate that children with ADHD-only and ASD + ADHD demonstrated increased MRT, SD-RT, CV and Tau compared to TDC and ASD-only. Importantly, greater improvement in MRT, SD-RT and Tau was demonstrated in ADHD and ASD + ADHD from slow-baseline to fast-incentive conditions compared to TDC and ASD-only. Conclusions Slower and more variable RTs are markers of ADHD compared to ASD and typically developing controls during slow and less rewarding conditions. Energetic factors and rewards improve task performance to a greater extent in children with ADHD compared to children with ASD. These findings suggest that RTV can be distinguished in ASD, ADHD and ASD + ADHD based on the indices of variability used and the conditions in which they are elicited. Further work identifying neural processes underlying increased RTV is warranted, in order to elucidate disorder-specific and disorder-convergent aetiological pathways. En ligne : http://dx.doi.org/10.1111/jcpp.12608 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=297 [article] Response time variability under slow and fast-incentive conditions in children with ASD, ADHD and ASD+ADHD [Texte imprimé et/ou numérique] / Charlotte TYE, Auteur ; Katherine A. JOHNSON, Auteur ; Simon P. KELLY, Auteur ; Philip ASHERSON, Auteur ; Jonna KUNTSI, Auteur ; Karen L. ASHWOOD, Auteur ; Bahare AZADI, Auteur ; Patrick BOLTON, Auteur ; Gráinne MCLOUGHLIN, Auteur . - p.1414-1423. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 57-12 (December 2016) . - p.1414-1423 Mots-clés : Autism spectrum disorder  attention deficit hyperactivity disorder  cognition  comorbidity  reaction time variability Index. décimale : PER Périodiques Résumé : Background Attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) show significant behavioural and genetic overlap. Both ADHD and ASD are characterised by poor performance on a range of cognitive tasks. In particular, increased response time variability (RTV) is a promising indicator of risk for both ADHD and ASD. However, it is not clear whether different indices of RTV and changes to RTV according to task conditions are able to discriminate between the two disorders. Methods Children with ASD (n = 19), ADHD (n = 18), ASD + ADHD (n = 29) and typically developing controls (TDC; n = 26) performed a four-choice RT task with slow-baseline and fast-incentive conditions. Performance was characterised by mean RT (MRT), standard deviation of RT (SD-RT), coefficient of variation (CV) and ex-Gaussian distribution measures of Mu, Sigma and Tau. Results In the slow-baseline condition, categorical diagnoses and trait measures converged to indicate that children with ADHD-only and ASD + ADHD demonstrated increased MRT, SD-RT, CV and Tau compared to TDC and ASD-only. Importantly, greater improvement in MRT, SD-RT and Tau was demonstrated in ADHD and ASD + ADHD from slow-baseline to fast-incentive conditions compared to TDC and ASD-only. Conclusions Slower and more variable RTs are markers of ADHD compared to ASD and typically developing controls during slow and less rewarding conditions. Energetic factors and rewards improve task performance to a greater extent in children with ADHD compared to children with ASD. These findings suggest that RTV can be distinguished in ASD, ADHD and ASD + ADHD based on the indices of variability used and the conditions in which they are elicited. Further work identifying neural processes underlying increased RTV is warranted, in order to elucidate disorder-specific and disorder-convergent aetiological pathways. En ligne : http://dx.doi.org/10.1111/jcpp.12608 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=297

Resting-State Neurophysiological Activity Patterns in Young People with ASD, ADHD, and ASD + ADHD / E. SHEPHARD in Journal of Autism and Developmental Disorders, 48-1 (January 2018)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 48-1 (January 2018) . - p.110-122 Titre : Resting-State Neurophysiological Activity Patterns in Young People with ASD, ADHD, and ASD + ADHD Type de document : Texte imprimé et/ou numérique Auteurs : E. SHEPHARD, Auteur ; C. TYE, Auteur ; Karen L. ASHWOOD, Auteur ; Bahare AZADI, Auteur ; Philip ASHERSON, Auteur ; Patrick BOLTON, Auteur ; G. MCLOUGHLIN, Auteur Article en page(s) : p.110-122 Langues : Anglais (eng) Mots-clés : Adhd  Asd  Co-occurring ASD + ADHD  Eeg  Resting-state  Spectral power Index. décimale : PER Périodiques Résumé : Altered power of resting-state neurophysiological activity has been associated with autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD), which commonly co-occur. We compared resting-state neurophysiological power in children with ASD, ADHD, co-occurring ASD + ADHD, and typically developing controls. Children with ASD (ASD/ASD + ADHD) showed reduced theta and alpha power compared to children without ASD (controls/ADHD). Children with ADHD (ADHD/ASD + ADHD) displayed decreased delta power compared to children without ADHD (ASD/controls). Children with ASD + ADHD largely presented as an additive co-occurrence with deficits of both disorders, although reduced theta compared to ADHD-only and reduced delta compared to controls suggested some unique markers. Identifying specific neurophysiological profiles in ASD and ADHD may assist in characterising more homogeneous subgroups to inform treatment approaches and aetiological investigations. En ligne : https://doi.org/10.1007/s10803-017-3300-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=336 [article] Resting-State Neurophysiological Activity Patterns in Young People with ASD, ADHD, and ASD + ADHD [Texte imprimé et/ou numérique] / E. SHEPHARD, Auteur ; C. TYE, Auteur ; Karen L. ASHWOOD, Auteur ; Bahare AZADI, Auteur ; Philip ASHERSON, Auteur ; Patrick BOLTON, Auteur ; G. MCLOUGHLIN, Auteur . - p.110-122. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 48-1 (January 2018) . - p.110-122 Mots-clés : Adhd  Asd  Co-occurring ASD + ADHD  Eeg  Resting-state  Spectral power Index. décimale : PER Périodiques Résumé : Altered power of resting-state neurophysiological activity has been associated with autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD), which commonly co-occur. We compared resting-state neurophysiological power in children with ASD, ADHD, co-occurring ASD + ADHD, and typically developing controls. Children with ASD (ASD/ASD + ADHD) showed reduced theta and alpha power compared to children without ASD (controls/ADHD). Children with ADHD (ADHD/ASD + ADHD) displayed decreased delta power compared to children without ADHD (ASD/controls). Children with ASD + ADHD largely presented as an additive co-occurrence with deficits of both disorders, although reduced theta compared to ADHD-only and reduced delta compared to controls suggested some unique markers. Identifying specific neurophysiological profiles in ASD and ADHD may assist in characterising more homogeneous subgroups to inform treatment approaches and aetiological investigations. En ligne : https://doi.org/10.1007/s10803-017-3300-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=336

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