Atypical Social Referencing in Infant Siblings of Children with Autism Spectrum Disorders / Lauren CORNEW in Journal of Autism and Developmental Disorders, 42-12 (December 2012)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 42-12 (December 2012) . - p.2611-2621 Titre : Atypical Social Referencing in Infant Siblings of Children with Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Lauren CORNEW, Auteur ; Karen R. DOBKINS, Auteur ; Natacha AKSHOOMOFF, Auteur ; Joseph P. MCCLEERY, Auteur ; Leslie J. CARVER, Auteur Année de publication : 2012 Article en page(s) : p.2611-2621 Langues : Anglais (eng) Mots-clés : Autism  Social referencing  Joint attention  Behavior regulation Index. décimale : PER Périodiques Résumé : Social referencing was investigated in 18-month-old siblings of children with autism spectrum disorders (ASD; 'high-risk infants'). Infants were exposed to novel toys, which were emotionally tagged via adults' facial and vocal signals. Infants' information seeking (initiation of joint attention with an adult) and their approach/withdrawal behavior toward the toys before versus after the adults' emotional signals was measured. Compared to both typically developing infants and high-risk infants without ASD, infants later diagnosed with ASD engaged in slower information seeking, suggesting that this aspect of referencing may be an early indicator of ASD. High-risk infants, both those who were and those who were not later diagnosed with ASD, exhibited impairments in regulating their behavior based on the adults' emotional signals, suggesting that this aspect of social referencing may reflect an endophenotype for ASD. En ligne : http://dx.doi.org/10.1007/s10803-012-1518-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=184 [article] Atypical Social Referencing in Infant Siblings of Children with Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Lauren CORNEW, Auteur ; Karen R. DOBKINS, Auteur ; Natacha AKSHOOMOFF, Auteur ; Joseph P. MCCLEERY, Auteur ; Leslie J. CARVER, Auteur . - 2012 . - p.2611-2621. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 42-12 (December 2012) . - p.2611-2621 Mots-clés : Autism  Social referencing  Joint attention  Behavior regulation Index. décimale : PER Périodiques Résumé : Social referencing was investigated in 18-month-old siblings of children with autism spectrum disorders (ASD; 'high-risk infants'). Infants were exposed to novel toys, which were emotionally tagged via adults' facial and vocal signals. Infants' information seeking (initiation of joint attention with an adult) and their approach/withdrawal behavior toward the toys before versus after the adults' emotional signals was measured. Compared to both typically developing infants and high-risk infants without ASD, infants later diagnosed with ASD engaged in slower information seeking, suggesting that this aspect of referencing may be an early indicator of ASD. High-risk infants, both those who were and those who were not later diagnosed with ASD, exhibited impairments in regulating their behavior based on the adults' emotional signals, suggesting that this aspect of social referencing may reflect an endophenotype for ASD. En ligne : http://dx.doi.org/10.1007/s10803-012-1518-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=184

Face and Object Discrimination in Autism, and Relationship to IQ and Age / Pamela M. PALLETT in Journal of Autism and Developmental Disorders, 44-5 (May 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-5 (May 2014) . - p.1039-1054 Titre : Face and Object Discrimination in Autism, and Relationship to IQ and Age Type de document : Texte imprimé et/ou numérique Auteurs : Pamela M. PALLETT, Auteur ; Shereen J. COHEN, Auteur ; Karen R. DOBKINS, Auteur Année de publication : 2014 Article en page(s) : p.1039-1054 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorders  Face processing  Object processing  Inversion effects  Adolescents  Development Index. décimale : PER Périodiques Résumé : The current study tested fine discrimination of upright and inverted faces and objects in adolescents with Autism Spectrum Disorder (ASD) as compared to age- and IQ-matched controls. Discrimination sensitivity was tested using morphed faces and morphed objects, and all stimuli were equated in low-level visual characteristics (luminance, contrast, spatial frequency make-up). Participants with ASD exhibited slight, non-significant impairments in discrimination sensitivity for faces, yet significantly enhanced discrimination sensitivity for objects. The ASD group also showed a protracted development of face and object inversion effects. Finally, for ASD participants, face sensitivity improved with increasing IQ while object sensitivity improved with age. By contrast, for controls, face sensitivity improved with age, but neither face nor object sensitivity was influenced by IQ. These findings suggest that individuals with ASD follow a qualitatively different path in the development of face and object processing abilities. En ligne : http://dx.doi.org/10.1007/s10803-013-1955-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=232 [article] Face and Object Discrimination in Autism, and Relationship to IQ and Age [Texte imprimé et/ou numérique] / Pamela M. PALLETT, Auteur ; Shereen J. COHEN, Auteur ; Karen R. DOBKINS, Auteur . - 2014 . - p.1039-1054. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-5 (May 2014) . - p.1039-1054 Mots-clés : Autism Spectrum Disorders  Face processing  Object processing  Inversion effects  Adolescents  Development Index. décimale : PER Périodiques Résumé : The current study tested fine discrimination of upright and inverted faces and objects in adolescents with Autism Spectrum Disorder (ASD) as compared to age- and IQ-matched controls. Discrimination sensitivity was tested using morphed faces and morphed objects, and all stimuli were equated in low-level visual characteristics (luminance, contrast, spatial frequency make-up). Participants with ASD exhibited slight, non-significant impairments in discrimination sensitivity for faces, yet significantly enhanced discrimination sensitivity for objects. The ASD group also showed a protracted development of face and object inversion effects. Finally, for ASD participants, face sensitivity improved with increasing IQ while object sensitivity improved with age. By contrast, for controls, face sensitivity improved with age, but neither face nor object sensitivity was influenced by IQ. These findings suggest that individuals with ASD follow a qualitatively different path in the development of face and object processing abilities. En ligne : http://dx.doi.org/10.1007/s10803-013-1955-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=232

Spatial Contrast Sensitivity in Adolescents with Autism Spectrum Disorders / Hwan CUI KOH in Journal of Autism and Developmental Disorders, 40-8 (August 2010)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 40-8 (August 2010) . - p.978-987 Titre : Spatial Contrast Sensitivity in Adolescents with Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Hwan CUI KOH, Auteur ; Elizabeth MILNE, Auteur ; Karen R. DOBKINS, Auteur Année de publication : 2010 Article en page(s) : p.978-987 Langues : Anglais (eng) Mots-clés : Autism-spectrum-disorders Spatial-frequency Contrast-sensitivity Visual-acuity Perception Visual-psychophysics Index. décimale : PER Périodiques Résumé : Adolescents with autism spectrum disorders (ASD) and typically developing (TD) controls underwent a rigorous psychophysical assessment that measured contrast sensitivity to seven spatial frequencies (0.5–20 cycles/degree). A contrast sensitivity function (CSF) was then fitted for each participant, from which four measures were obtained: visual acuity, peak spatial frequency, peak contrast sensitivity, and contrast sensitivity at a low spatial frequency. There were no group differences on any of the four CSF measures, indicating no differential spatial frequency processing in ASD. Although it has been suggested that detail-oriented visual perception in individuals with ASD may be a result of differential sensitivities to low versus high spatial frequencies, the current study finds no evidence to support this hypothesis. En ligne : http://dx.doi.org/10.1007/s10803-010-0953-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=108 [article] Spatial Contrast Sensitivity in Adolescents with Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Hwan CUI KOH, Auteur ; Elizabeth MILNE, Auteur ; Karen R. DOBKINS, Auteur . - 2010 . - p.978-987. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 40-8 (August 2010) . - p.978-987 Mots-clés : Autism-spectrum-disorders Spatial-frequency Contrast-sensitivity Visual-acuity Perception Visual-psychophysics Index. décimale : PER Périodiques Résumé : Adolescents with autism spectrum disorders (ASD) and typically developing (TD) controls underwent a rigorous psychophysical assessment that measured contrast sensitivity to seven spatial frequencies (0.5–20 cycles/degree). A contrast sensitivity function (CSF) was then fitted for each participant, from which four measures were obtained: visual acuity, peak spatial frequency, peak contrast sensitivity, and contrast sensitivity at a low spatial frequency. There were no group differences on any of the four CSF measures, indicating no differential spatial frequency processing in ASD. Although it has been suggested that detail-oriented visual perception in individuals with ASD may be a result of differential sensitivities to low versus high spatial frequencies, the current study finds no evidence to support this hypothesis. En ligne : http://dx.doi.org/10.1007/s10803-010-0953-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=108

---

1 (1 - 3 / 3)