A case of central auditory processing disorder in a preschool child with a hypofunction of the right temporoparietal lobe Akihiro Kawasaki 1 , Tomoko Taguchi 2 , Chie Obuchi 3 , Kunihiro Fukushima 1 , Rie Nagayasu 1 , Kazunori Nishizaki 1 1Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences 2Asahikawasou Ryouikuen 3Department of Speech/Language and Hearing Sciences, International University of Health and Welfare Keyword: 中枢性聴覚情報処理障害(CAPD) , 両耳分離聴検査 , 騒音下受聴検査 , 中間潜時反応(MLR) , central auditory processing disorder (CAPD) , dichotic listening test (DLT) , speech in noise test , auditory middle latency response (MLR) pp.3-9
Published Date 2008/3/15
DOI https://doi.org/10.11477/mf.6001100141
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 A Japanese preschool girl was referred to our hospital because of her difficulty in memorizing spoken words. Audiometric tests, including pure tone audiometry, distortion product otoacoustic emission (DPOAE), and auditory steady-state response (ASSR), revealed her hearing to be within normal range, but the results of auditory middle latency response (MLR) were poor. Auditory processing disorder (APD) screening batteries were performed and significantly poor responses were observed in dichotic listening test (DLT) and word recognition test in noise. SPECT imaging revealed apparently poor circulation in the cortical and subcortical region of the right temporoparietal lobe. Although no apparent developmental or cognitive delay was observed by WISC-Ⅲ, SLTA, and K-ABC, ITPA demonstrated moderately poor semantic ability. She was diagnosed to have an APD. Consolidation of a compensatory mechanism could be the choice intervention program of Japanese APD patients.

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電子版ISSN 印刷版ISSN 1349-5828 日本言語聴覚士協会