Comorbidity with other neurodevelopmental disorders is often present ( Dawes and Bishop, 2009 Serrallach et al., 2016) consistent with the definition of disorders as elaborated in DSM-5 ( American Psychiatry Association, 2013).Įven though musical perception comprises a big part of audition, testing music perception in APD populations has not yet gained wide attention in research. Children with APD present a wide range of auditory symptoms, and most commonly problems with speech recognition in noise ( American Speech-Language-Hearing Association, 2005 American Academy of Audiology, 2010 British Society of Audiology, 2011). APD is linked to functional abnormalities and lesions beyond the cochlea ( Musiek et al., 2005b Gilley et al., 2016 Iliadou and Eleftheriadis, 2017). The potential beneficial use of music/rhythm training for rehabilitation purposes in APD children would need to be explored.Īuditory processing disorder (APD) is defined as a specific deficit in the processing of auditory information along the central auditory nervous system, including bottom-up and top-down neural connectivity ( Iliadou et al., 2017b) and is currently classified in the international statistical classification of diseases and related health problems, 10th edition (ICD-10) as H93.25. Our results suggest (a) the existence of a non-attention related rhythm perception deficit in APD children and (b) differential effects of attention on task performance in normal vs. The results demonstrate a deficit in the perception of regularly timed sequences in APD that is relevant to the perception of speech in noise, a ubiquitous complaint in this condition. In the control group a large correlation ( r = −0.701, p = 0.001) was observed between isochrony task and attention, but not with memory. Left (but not right) speech in noise performance correlated with performance in isochrony task. In the APD group, neither measure of cognition (attention nor memory) correlated with performance in isochrony task. APD children scored worse in isochrony task compared to the age-matched control group. We tested 39 APD children and 25 control children aged between 6 and 12 years via (a) clinical APD tests, including a monaural speech in noise test, (b) isochrony task, a test measuring the detection of small deviations from perfect isochrony in a isochronous beats sequence, and (c) two cognitive tests (auditory memory and auditory attention). The secondary question is to study the relationship between cognition and auditory processing of rhythm perception. The primary focus of this study is to measure perception of a simple auditory rhythm, i.e., short isochronous sequences of beats, in APD children and to compare their performance to age-matched normal controls. This work tests the hypothesis that deficits in rhythm perception occur in a group of subjects with APD.
Even though music comprises a big part of audition, testing music perception in APD population has not yet gained wide attention in research.
4Hearing and Deafness Biomedical Research Centre, National Institute for Health Research, London, United KingdomĪuditory processing disorder (APD) is defined as a specific deficit in the processing of auditory information along the central auditory nervous system, including bottom-up and top-down neural connectivity.3Faculty of Brain Sciences, UCL Ear Institute, University College London, London, United Kingdom.
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