Auditory Sound Agnosia without Aphasia Following a Right Temporal Lobe Lesion

Toshikatsu Fujii, Reiko Fukatsu, Shin ichi Watabe, Ayumu Ohnuma, Kazumine Teramura, Itaru Kimura, Shun ichi Saso, Kyuya Kogure

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)


A 55-year-old right-handed man showed inability to recognize the meaning of nonverbal sounds without impairment of language comprehension after a cerebrovascular accident. His auditory acuity was intact and no other sign of agnosia, apraxia or aphasia was detectable. His errors on a test of sound recognition were acoustic rather than semantic. Brain CT scan showed a small lesion in the posterior part of the right temporal lobe. This case suggests that auditory sound agnosia without language disorder can ensure a lesion confined to the right hemisphere, that the deficit is discriminative rather than associative in nature.

Original languageEnglish
Pages (from-to)263-268
Number of pages6
Issue number2
Publication statusPublished - 1990
Externally publishedYes

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience


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