Auditory spatial attention to speech and complex non-speech sounds in children with autism spectrum disorder / Laura N. SOSKEY in Autism Research, 10-8 (August 2017)  

Public ISBD [article]  inAutism Research > 10-8 (August 2017) . - p.1405-1416 Titre : Auditory spatial attention to speech and complex non-speech sounds in children with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Laura N. SOSKEY, Auteur ; Paul D. ALLEN, Auteur ; Loisa BENNETTO, Auteur Article en page(s) : p.1405-1416 Langues : Anglais (eng) Mots-clés : autism spectrum disorder  children  auditory spatial attention  acoustic complexity  speech Index. décimale : PER Périodiques Résumé : One of the earliest observable impairments in autism spectrum disorder (ASD) is a failure to orient to speech and other social stimuli. Auditory spatial attention, a key component of orienting to sounds in the environment, has been shown to be impaired in adults with ASD. Additionally, specific deficits in orienting to social sounds could be related to increased acoustic complexity of speech. We aimed to characterize auditory spatial attention in children with ASD and neurotypical controls, and to determine the effect of auditory stimulus complexity on spatial attention. In a spatial attention task, target and distractor sounds were played randomly in rapid succession from speakers in a free-field array. Participants attended to a central or peripheral location, and were instructed to respond to target sounds at the attended location while ignoring nearby sounds. Stimulus-specific blocks evaluated spatial attention for simple non-speech tones, speech sounds (vowels), and complex non-speech sounds matched to vowels on key acoustic properties. Children with ASD had significantly more diffuse auditory spatial attention than neurotypical children when attending front, indicated by increased responding to sounds at adjacent non-target locations. No significant differences in spatial attention emerged based on stimulus complexity. Additionally, in the ASD group, more diffuse spatial attention was associated with more severe ASD symptoms but not with general inattention symptoms. Spatial attention deficits have important implications for understanding social orienting deficits and atypical attentional processes that contribute to core deficits of ASD. En ligne : http://dx.doi.org/10.1002/aur.1790 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=310 [article] Auditory spatial attention to speech and complex non-speech sounds in children with autism spectrum disorder [Texte imprimé et/ou numérique] / Laura N. SOSKEY, Auteur ; Paul D. ALLEN, Auteur ; Loisa BENNETTO, Auteur . - p.1405-1416. Langues : Anglais (eng) in Autism Research > 10-8 (August 2017) . - p.1405-1416 Mots-clés : autism spectrum disorder  children  auditory spatial attention  acoustic complexity  speech Index. décimale : PER Périodiques Résumé : One of the earliest observable impairments in autism spectrum disorder (ASD) is a failure to orient to speech and other social stimuli. Auditory spatial attention, a key component of orienting to sounds in the environment, has been shown to be impaired in adults with ASD. Additionally, specific deficits in orienting to social sounds could be related to increased acoustic complexity of speech. We aimed to characterize auditory spatial attention in children with ASD and neurotypical controls, and to determine the effect of auditory stimulus complexity on spatial attention. In a spatial attention task, target and distractor sounds were played randomly in rapid succession from speakers in a free-field array. Participants attended to a central or peripheral location, and were instructed to respond to target sounds at the attended location while ignoring nearby sounds. Stimulus-specific blocks evaluated spatial attention for simple non-speech tones, speech sounds (vowels), and complex non-speech sounds matched to vowels on key acoustic properties. Children with ASD had significantly more diffuse auditory spatial attention than neurotypical children when attending front, indicated by increased responding to sounds at adjacent non-target locations. No significant differences in spatial attention emerged based on stimulus complexity. Additionally, in the ASD group, more diffuse spatial attention was associated with more severe ASD symptoms but not with general inattention symptoms. Spatial attention deficits have important implications for understanding social orienting deficits and atypical attentional processes that contribute to core deficits of ASD. En ligne : http://dx.doi.org/10.1002/aur.1790 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=310

Children with autism spectrum disorder have reduced otoacoustic emissions at the 1 kHz mid-frequency region / Loisa BENNETTO in Autism Research, 10-2 (February 2017)  

Public ISBD [article]  inAutism Research > 10-2 (February 2017) . - p.337-345 Titre : Children with autism spectrum disorder have reduced otoacoustic emissions at the 1 kHz mid-frequency region Type de document : Texte imprimé et/ou numérique Auteurs : Loisa BENNETTO, Auteur ; Jessica M. KEITH, Auteur ; Paul D. ALLEN, Auteur ; Anne E. LUEBKE, Auteur Article en page(s) : p.337-345 Langues : Anglais (eng) Mots-clés : DPOAE  distortion-product otoacoustic emissions  TrOAE  transient-evoked otoacoustic emissions  autism  cochlea  efferent suppression  middle ear muscle reflex Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is a behaviorally diagnosed disorder of early onset characterized by impairment in social communication and restricted and repetitive behaviors. Some of the earliest signs of ASD involve auditory processing, and a recent study found that hearing thresholds in children with ASD in the mid-range frequencies were significantly related to receptive and expressive language measures. In addition, otoacoustic emissions have been used to detect reduced cochlear function in the presence of normal audiometric thresholds. We were interested then to know if otoacoustic emissions in children with normal audiometric thresholds would also reveal differences between children with ASD and typical developing (TD) controls in mid-frequency regions. Our objective was to specifically measure baseline afferent otoacoustic emissions (distortion-product otoacoustic emissions [DPOAEs]), transient-evoked otoacoustic emissions (TrOAEs), and efferent suppression, in 35 children with high-functioning ASD compared with 42 aged-matched TD controls. All participants were males 6–17 years old, with normal audiometry, and rigorously characterized via Autism Diagnostic Interview-Revised and Autism Diagnostic Observation Schedule. Children with ASD had greatly reduced DPOAE responses in the 1 kHz frequency range, yet had comparable DPOAE responses at 0.5 and 4–8 kHz regions. Furthermore, analysis of the spectral features of TrOAEs revealed significantly decreased emissions in ASD in similar frequencies. No significant differences were noted in DPOAE or TrOAE noise floors, middle ear muscle reflex activity, or efferent suppression between children with ASD and TD controls. In conclusion, attention to specific-frequency deficits using non-invasive measures of cochlear function may be important in auditory processing impairments found in ASD. En ligne : http://dx.doi.org/10.1002/aur.1663 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=303 [article] Children with autism spectrum disorder have reduced otoacoustic emissions at the 1 kHz mid-frequency region [Texte imprimé et/ou numérique] / Loisa BENNETTO, Auteur ; Jessica M. KEITH, Auteur ; Paul D. ALLEN, Auteur ; Anne E. LUEBKE, Auteur . - p.337-345. Langues : Anglais (eng) in Autism Research > 10-2 (February 2017) . - p.337-345 Mots-clés : DPOAE  distortion-product otoacoustic emissions  TrOAE  transient-evoked otoacoustic emissions  autism  cochlea  efferent suppression  middle ear muscle reflex Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is a behaviorally diagnosed disorder of early onset characterized by impairment in social communication and restricted and repetitive behaviors. Some of the earliest signs of ASD involve auditory processing, and a recent study found that hearing thresholds in children with ASD in the mid-range frequencies were significantly related to receptive and expressive language measures. In addition, otoacoustic emissions have been used to detect reduced cochlear function in the presence of normal audiometric thresholds. We were interested then to know if otoacoustic emissions in children with normal audiometric thresholds would also reveal differences between children with ASD and typical developing (TD) controls in mid-frequency regions. Our objective was to specifically measure baseline afferent otoacoustic emissions (distortion-product otoacoustic emissions [DPOAEs]), transient-evoked otoacoustic emissions (TrOAEs), and efferent suppression, in 35 children with high-functioning ASD compared with 42 aged-matched TD controls. All participants were males 6–17 years old, with normal audiometry, and rigorously characterized via Autism Diagnostic Interview-Revised and Autism Diagnostic Observation Schedule. Children with ASD had greatly reduced DPOAE responses in the 1 kHz frequency range, yet had comparable DPOAE responses at 0.5 and 4–8 kHz regions. Furthermore, analysis of the spectral features of TrOAEs revealed significantly decreased emissions in ASD in similar frequencies. No significant differences were noted in DPOAE or TrOAE noise floors, middle ear muscle reflex activity, or efferent suppression between children with ASD and TD controls. In conclusion, attention to specific-frequency deficits using non-invasive measures of cochlear function may be important in auditory processing impairments found in ASD. En ligne : http://dx.doi.org/10.1002/aur.1663 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=303

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