The Japanese journal of neuropsychology

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ArticleTitle	A case of auditory agnosia -perception disorders of sound elements-
Language	J
AuthorList	Masako Notoya¹⁾, Hiromi Harada²⁾, Kahoru Hashimoto³⁾, Nobuyuki Sunahara⁴⁾
Affiliation	¹⁾School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University ²⁾Kanazawa University Hospital ³⁾Kanazawa University Graduate School of Medical Science ⁴⁾Koshi Rehabilitation Center
Publication	Japanese Journal of Neuropsychology: 28 (1), 34-40, 2012
Received	May 27, 2010
Accepted	Nov 30, 2010
Abstract	A 62-year old, right handed female, showed severe auditory disorders and mild Wernicke's ahasia after twice cerebral attack. CT showed bilateral upper temporal low density. Mild hearing loss of 40-50 dB bilaterally were revealed by pure tone audiometric examination. Auditory brain stem response (ABR) revealed 30 dB bilaterally, almost within normal range level. Her language level in reading letters, sentences and spontaneously writing was excellent. On the other hand, severe disorders were revealed in auditory comprehension, repetition (vowel and word), and recognition of social sounds. From these results, she showed auditory agnosia with mild sensory aphasia. She could communicate with staff by listening and lip-reading and written language. In this case we evaluated perception of speech and sound elements using speech sounds (vowel and consonant syllables) and loudness, time, pitch for perception of sound elements. In the discrimination of loudness, time and pitch discrimination was very difficult for our patient with auditory agnosia.
Keywords	auditory agnosia, discrimination of loudness, discrimination of pitch, discrimination of time, perception disorders of sound elements