Comparison of auditory stimulus processing in normal and autistic adolescents

Nober, E. Harris; Simmons, James Q.

doi:10.1007/bf01531683

Cited by 9 publications

(4 citation statements)

References 45 publications

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“…In addition, a previous study using pitch-shifted auditory feedback also found that a subgroup of individuals with ASD have larger responses to perturbed auditory feedback ( Russo et al, 2008 ), which indicates that some individuals with ASD rely more on feedback control than on feedforward control in speech production. Another previous study found no difference between the ASD group and the control group for DAF and the Lombard effect ( Nober and Simmons, 1981 ), but they only tested a small number of participants. Here we tested a larger number of participants.…”

Section: Introductionmentioning

confidence: 88%

Atypical delayed auditory feedback effect and Lombard effect on speech production in high-functioning adults with autism spectrum disorder

Lin

Mochida²,

Asada

et al. 2015

Front. Hum. Neurosci.

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Individuals with autism spectrum disorder (ASD) show impaired social interaction and communication, which may be related to their difficulties in speech production. To investigate the mechanisms of atypical speech production in this population, we examined feedback control by delaying the auditory feedback of their own speech, which degraded speech fluency. We also examined feedforward control by adding loud pink noise to the auditory feedback, which led to increased vocal effort in producing speech. The results of Japanese speakers show that, compared with neurotypical (NT) individuals, high-functioning adults with ASD (including Asperger’s disorder, autistic disorder, and pervasive developmental disorder not otherwise specified) were more affected by delayed auditory feedback but less affected by external noise. These findings indicate that, in contrast to NT individuals, those with ASD relied more on feedback control than on feedforward control in speech production, which is consistent with the hypothesis that this population exhibits attenuated Bayesian priors.

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Section: Introductionmentioning

confidence: 88%

Atypical delayed auditory feedback effect and Lombard effect on speech production in high-functioning adults with autism spectrum disorder

Lin

Mochida²,

Asada

et al. 2015

Front. Hum. Neurosci.

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“…Lombard's results have been used as a diagnostic test for unilateral deafness, false or exaggerated hearing loss (‘pseudohypacusis’), and other hearing pathologies (Lane & Tranel, ; Nober & Simmons, ; Brumm & Zollinger, ), and to develop speech recognition technologies (Junqua, , ; Junqua, Fincke & Field, ). Such practical applications have generated high levels of interest from medical professionals and software engineers, leading to detailed understanding of specific characteristics of the Lombard effect in humans.…”

Section: Introductionmentioning

confidence: 99%

“…In the years since Lombard's initial discovery, the relationship between increased noise level and vocalization amplitude has come to be known mainly as the 'Lombard effect' (but is also referred to as: the Lombard sign, function, reflex, phenomenon, response, or reaction) (Egan, 1967;Brumm & Zollinger, 2011). Lombard's results have been used as a diagnostic test for unilateral deafness, false or exaggerated hearing loss ('pseudohypacusis'), and other hearing pathologies (Lane & Tranel, 1971;Nober & Simmons, 1981;Brumm & Zollinger, 2011), and to develop speech recognition technologies (Junqua, 1993(Junqua, , 1996Junqua, Fincke & Field, 1999). Such practical applications have generated high levels of interest from medical professionals and software engineers, leading to detailed understanding of specific characteristics of the Lombard effect in humans.…”

Section: Introductionmentioning

confidence: 99%

The Lombard effect and other noise‐induced vocal modifications: insight from mammalian communication systems

Hotchkin

Parks

2013

Biological Reviews

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Humans and non-human mammals exhibit fundamentally similar vocal responses to increased noise, including increases in vocalization amplitude (the Lombard effect) and changes to spectral and temporal properties of vocalizations. Different research focuses have resulted in significant discrepancies in study methodologies and hypotheses among fields, leading to particular knowledge gaps and techniques specific to each field. This review compares and contrasts noise-induced vocal modifications observed from human and non-human mammals with reference to experimental design and the history of each field. Topics include the effects of communication motivation and subject-specific characteristics on the acoustic parameters of vocalizations, examination of evidence for a proposed biomechanical linkage between the Lombard effect and other spectral and temporal modifications, and effects of noise on self-communication signals (echolocation). Standardized terminology, cross-taxa tests of hypotheses, and open areas for future research in each field are recommended. Findings indicate that more research is needed to evaluate linkages among vocal modifications, context dependencies, and the finer details of the Lombard effect during natural communication. Studies of non-human mammals could benefit from applying the tightly controlled experimental designs developed in human research, while studies of human speech in noise should be expanded to include natural communicative contexts. The effects of experimental design and behavioural context on vocalizations should not be neglected as they may impact the magnitude and type of noise-induced vocal modifications.

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“…More specifically, with respect to the acoustic processing of language, children and young adults with ASD performed as well as their peers in a phonological production task (Bishop et al 2004), including in situations with stressful auditory input (Nober and Simmons 1981), and they also perceived native and non-native phoneme contrasts as well as their peers (Constantino et al 2007). In the related domain of prosody, the results are mixed.…”

Section: Dialect Perception By Typically Developing Adultsmentioning

confidence: 98%

Perception of Dialect Variation by Young Adults with High-Functioning Autism

Clopper

Rohrbeck

Wagner

2011

J Autism Dev Disord

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The linguistic profile of people with Autism spectrum disorders typically involves intact perceptual processing, accompanied by deficits in the social functions of language. In a series of three experiments, the impact of this profile on the perception of regional dialect was examined. Young adults with High-Functioning Autism exhibited similar performance to a typically developing comparison group in regional dialect classification and localness rating tasks, suggesting that they can use indexical information in speech to make judgments about the regional background of unfamiliar talkers. However, the participants with High-Functioning Autism were less able to differentiate among the dialects in a language attitudes task, suggesting that they do not share social stereotypes related to dialect variation with the typically developing comparison group.

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Comparison of auditory stimulus processing in normal and autistic adolescents

Cited by 9 publications

References 45 publications

Atypical delayed auditory feedback effect and Lombard effect on speech production in high-functioning adults with autism spectrum disorder

Atypical delayed auditory feedback effect and Lombard effect on speech production in high-functioning adults with autism spectrum disorder

The Lombard effect and other noise‐induced vocal modifications: insight from mammalian communication systems

Perception of Dialect Variation by Young Adults with High-Functioning Autism

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