Doaa ElMoazen1, Ossama Sobhy1, Rania Abdou2, HebatAllah AbdelMotaleb3. 1. Audio-vestibular Medicine Unit, Department of Otorhinolaryngology, Faculty of Medicine, Alexandria University, Alexandria, Egypt. 2. Phoniatrics Unit, Department of Otorhinolaryngology, Faculty of Medicine, Alexandria University, Alexandria, Egypt. 3. Audio-vestibular Medicine Unit, Department of Otorhinolaryngology, Faculty of Medicine, Alexandria University, Alexandria, Egypt. Electronic address: Heba.ismail89@gmail.com.
Abstract
INTRODUCTION: There is ample evidence that auditory dysfunction is a common feature of autism spectrum disorder (ASD). Binaural interaction component (BIC) manifests binaural interaction and is valid and proven response which reflects ongoing binaural processing. OBJECTIVES: To investigate the differences in binaural interaction component of auditory brainstem response (ABR-BIC) between children with autism spectrum disorder (ASD) and normal peers and to correlate between ABR-BIC amplitudes and the acquired communication skills in ASD children. METHODS: ASD was diagnosed according to the criteria of 5th edition of diagnostic and statistical manual of mental disorders (DSM-V) and all children with ASD underwent test of acquired communication skills (TACS). Click evoked ABRs were elicited by left monaural, right monaural and binaural stimulation at intensity of 65 dBnHL in all participants. ABR-BIC was then calculated as the difference between the binaurally evoked ABR waveform and a predicted binaural waveform created by algebraically summing the left and right monaurally evoked ABRs. The difference in amplitudes that gives rise to ABR-BIC is at IV-VI waves. RESULTS: ABR-BIC amplitudes were demonstrated to be significantly reduced in the ASD group compared to the control group. There was significant positive correlation between ABR-BIC amplitude and the language and social scores in TACS. CONCLUSION: This study provided an objective evidence of binaural processing disorder in children with ASD.
INTRODUCTION: There is ample evidence that auditory dysfunction is a common feature of autism spectrum disorder (ASD). Binaural interaction component (BIC) manifests binaural interaction and is valid and proven response which reflects ongoing binaural processing. OBJECTIVES: To investigate the differences in binaural interaction component of auditory brainstem response (ABR-BIC) between children with autism spectrum disorder (ASD) and normal peers and to correlate between ABR-BIC amplitudes and the acquired communication skills in ASDchildren. METHODS:ASD was diagnosed according to the criteria of 5th edition of diagnostic and statistical manual of mental disorders (DSM-V) and all children with ASD underwent test of acquired communication skills (TACS). Click evoked ABRs were elicited by left monaural, right monaural and binaural stimulation at intensity of 65 dBnHL in all participants. ABR-BIC was then calculated as the difference between the binaurally evoked ABR waveform and a predicted binaural waveform created by algebraically summing the left and right monaurally evoked ABRs. The difference in amplitudes that gives rise to ABR-BIC is at IV-VI waves. RESULTS:ABR-BIC amplitudes were demonstrated to be significantly reduced in the ASD group compared to the control group. There was significant positive correlation between ABR-BIC amplitude and the language and social scores in TACS. CONCLUSION: This study provided an objective evidence of binaural processing disorder in children with ASD.
Authors: John Peacock; Chase A Mackey; Monica A Benson; Jane A Burton; Nathaniel T Greene; Ramnarayan Ramachandran; Daniel J Tollin Journal: eNeuro Date: 2021-12-16