Acquired amusia

Clark, Camilla N.; Golden, Hannah L.; Warren, Jason D.

doi:10.1016/b978-0-444-62630-1.00034-2

Cited by 16 publications

(7 citation statements)

References 201 publications

(307 reference statements)

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“…This double dissociation was supported by recent models for music perception suggesting a highly complex and distributed network of temporal, frontal, and parietal areas, additional to subcortical and limbic structures [7] , [16] , [27] , [38] , [51] . Melodic information is supposed to be mainly processed in superior temporal and frontal areas; the cerebellum and basal ganglia are thought to be involved in processing rhythmic material.…”

Section: Introductionsupporting

confidence: 63%

“…Hemispheric lateralization has also been addressed by these models: it was suggested that the right hemisphere processes melodic information and that rhythm is processed in both hemispheres [1] , [7] , [16] , [51] . Johnsrude, Penhune, & Zatorre [26] found that patients with right (but not left) temporal lobe removal overlapping with the Heschl's gyrus showed significantly higher thresholds in judging direction of pitch changes but not in pitch discrimination.…”

Section: Introductionmentioning

confidence: 99%

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Musical, visual and cognitive deficits after middle cerebral artery infarction

et al. 2017

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The perception of music can be impaired after a stroke. This dysfunction is called amusia and amusia patients often also show deficits in visual abilities, language, memory, learning, and attention. The current study investigated whether deficits in music perception are selective for musical input or generalize to other perceptual abilities. Additionally, we tested the hypothesis that deficits in working memory or attention account for impairments in music perception. Twenty stroke patients with small infarctions in the supply area of the middle cerebral artery were investigated with tests for music and visual perception, categorization, neglect, working memory and attention. Two amusia patients with selective deficits in music perception and pronounced lesions were identified. Working memory and attention deficits were highly correlated across the patient group but no correlation with musical abilities was obtained. Lesion analysis revealed that lesions in small areas of the putamen and globus pallidus were connected to a rhythm perception deficit. We conclude that neither a general perceptual deficit nor a minor domain general deficit can account for impairments in the music perception task. But we find support for the modular organization of the music perception network with brain areas specialized for musical functions as musical deficits were not correlated to any other impairment.

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Section: Introductionsupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Musical, visual and cognitive deficits after middle cerebral artery infarction

et al. 2017

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“…In the case of one specialised semantic domain – knowledge about familiar people – impaired auditory recognition (phonagnosia) selective within the auditory modality and between modalities has been documented, to set alongside the better known visual equivalent of prosopagnosia ( Hailstone et al, 2010 , Hailstone et al, 2011 , Luzzi et al, 2017 ). Specific agnosias have also been described for the equally specialised auditory domain of music ( Ayotte et al, 2000 , Clark et al, 2015 ). Studies of patients with auditory agnosia following focal brain damage have suggested that recognition of environmental sounds may dissociate from other kinds of auditory information processing ( Engelien et al, 1995 , Clarke et al, 2000 , Hattiangadi et al, 2005 , Saygin et al, 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Agnosia for bird calls

et al. 2018

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The cognitive organisation of nonverbal auditory knowledge remains poorly defined. Deficits of environmental sound as well as word and visual object knowledge are well-recognised in semantic dementia. However, it is unclear how auditory cognition breaks down in this disorder and how this relates to deficits in other knowledge modalities. We had the opportunity to study a patient with a typical syndrome of semantic dementia who had extensive premorbid knowledge of birds, allowing us to assess the impact of the disease on the processing of auditory in relation to visual and verbal attributes of this specific knowledge category. We designed a novel neuropsychological test to probe knowledge of particular avian characteristics (size, behaviour [migratory or nonmigratory], habitat [whether or not primarily water-dwelling]) in the nonverbal auditory, visual and verbal modalities, based on a uniform two-alternative-forced-choice procedure. The patient's performance was compared to healthy older individuals of similar birding experience. We further compared his performance on this test of bird knowledge with his knowledge of familiar human voices and faces. Relative to healthy birder controls, the patient showed marked deficits of bird call and bird name knowledge but relatively preserved knowledge of avian visual attributes and retained knowledge of human voices and faces. In both the auditory and visual modalities, his knowledge of the avian characteristics of size and behaviour was intact whereas his knowledge of the associated characteristic of habitat was deficient. This case provides further evidence that nonverbal auditory knowledge has a fractionated organisation that can be differentially targeted in semantic dementia.

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“…Congenital amusia refers to lifelong deficits of music perception and production 1 2 3 4 5 . Unlike acquired amusia following brain damage 6 7 8 congenital amusia occurs without brain injury, cognitive deficits, or hearing loss 3 . The most widely investigated hypothesis is that the musical deficits arise from altered pitch processing, resulting in impairments in pitch discrimination and short-term memory and sometimes associated with deficits along the musical time dimension (i.e., altered processing of rhythm or meter) 3 4 9 .…”

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confidence: 99%

Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia

Albouy

Cousineau

Caclin

et al. 2016

Sci Rep

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Recent theories suggest that the basis of neurodevelopmental auditory disorders such as dyslexia or specific language impairment might be a low-level sensory dysfunction. In the present study we test this hypothesis in congenital amusia, a neurodevelopmental disorder characterized by severe deficits in the processing of pitch-based material. We manipulated the temporal characteristics of auditory stimuli and investigated the influence of the time given to encode pitch information on participants’ performance in discrimination and short-term memory. Our results show that amusics’ performance in such tasks scales with the duration available to encode acoustic information. This suggests that in auditory neuro-developmental disorders, abnormalities in early steps of the auditory processing can underlie the high-level deficits (here musical disabilities). Observing that the slowing down of temporal dynamics improves amusics’ pitch abilities allows considering this approach as a potential tool for remediation in developmental auditory disorders.

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Acquired amusia

Cited by 16 publications

References 201 publications

Musical, visual and cognitive deficits after middle cerebral artery infarction

Musical, visual and cognitive deficits after middle cerebral artery infarction

Agnosia for bird calls

Impaired encoding of rapid pitch information underlies perception and memory deficits in congenital amusia

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