Impaired pitch production and preserved rhythm production in a right brain-damaged patient with amusia

Junko Murayama, Toshihiro Kashiwagi, Asako Kashiwagi, Masaru Mimura

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Pre- and postmorbid singing of a patient with amusia due to a right-hemispheric infarction was analyzed acoustically. This particular patient had a premorbid tape recording of her own singing without accompaniment. Appropriateness of pitch interval and rhythm was evaluated based on ratios of pitch and duration between neighboring notes. The results showed that melodic contours and rhythm were preserved but individual pitch intervals were conspicuously distorted. Our results support a hypothesis that pitch and rhythm are subserved by independent neural subsystems. We concluded that action-related acoustic information for controlling pitch intervals is stored in the right hemisphere.

Original languageEnglish
Pages (from-to)36-42
Number of pages7
JournalBrain and Cognition
Volume56
Issue number1
DOIs
Publication statusPublished - 2004 Oct 1
Externally publishedYes

Keywords

  • Amusia
  • Pitch intervals
  • Right hemisphere

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)
  • Cognitive Neuroscience

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