Music Agnosia and Auditory Agnosia

Abstract: A review and an experimantal study were carried out in search of dissociations between the recognition of music (music agnosia) and that of environmental sounds (auditory agnosia) in stroke patients. The review focused on 45 adequately studied cases published since 1883. The experimental study consisted of administering standard tests of music and environmental sound recognition to 40 unselected patients with unilateral stroke. Among case reports, music was selectively impaired more frequently than environmental sounds, whereas the reverse occurred in the experimantal study. In this, right hemisphere lesions tended either to disrupt the apperception of environmental sounds, sparing music entirely, or to disrupt both environmental sounds and melody, sparing rhythm, whereas left hemisphere lesions tended to spare melody and to disrupt rhythm, either selectively or in association with the semantic identification of environmental sounds.

[1]  L. Jakobson,et al.  Dissociations among functional subsystems governing melody recognition after right-hemisphere damage , 2001, Cognitive neuropsychology.

[2]  I. Peretz,et al.  Patterns of music agnosia associated with middle cerebral artery infarcts. , 2000, Brain : a journal of neurology.

[3]  L. Vignolo,et al.  The neuropsychology of cognitive function - Auditory agnosia , 1982 .

[4]  D. Benson,et al.  Non-verbal environmental sound recognition after unilateral hemispheric stroke. , 1994, Brain : a journal of neurology.

[5]  Isabelle Peretz,et al.  Functional dissociations following bilateral lesions of auditory cortex. , 1994 .

[6]  K M Heilman,et al.  Pure word deafness after bilateral primary auditory cortex infarcts , 1984, Neurology.

[7]  J. D. Waggener,et al.  A cortical auditory disorder , 1973, Neurology.

[8]  I. Peretz,et al.  Contribution of different cortical areas in the temporal lobes to music processing. , 1998, Brain : a journal of neurology.

[9]  F. Viader,et al.  Identification and discrimination disorders in auditory perception: A report on two cases , 1990, Neuropsychologia.

[10]  A. Mazzucchi,et al.  A case of receptive amusia with prominent timbre perception defect , 1982, Journal of neurology, neurosurgery, and psychiatry.

[11]  Timothy D. Griffiths,et al.  Spatial and temporal auditory processing deficits following right hemisphere infarction , 1997 .

[12]  T Kamo,et al.  'So-called' cortical deafness. Clinical, neurophysiological and radiological observations. , 1991, Brain : a journal of neurology.

[13]  I. Peretz,et al.  Processing of local and global musical information by unilateral brain-damaged patients. , 1990, Brain : a journal of neurology.

[14]  R. Zatorre.  Discrimination and recognition of tonal melodies after unilateral cerebral excisions , 1985, Neuropsychologia.

[15]  Sylvie Belleville,et al.  Dissociations Entre Musique et Langage Apres Atteinte Cerebrale: Un Nouveau Cas D'amusie Sans Aphasie , 1997 .