Auditory agnosia

Slevc, L. Robert; Shell, Alison

doi:10.1016/b978-0-444-62630-1.00032-9

Cited by 25 publications

(11 citation statements)

References 149 publications

(246 reference statements)

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“…This is most strikingly illustrated by human voices, which constitute exemplars unique to particular individuals. BA's superior performance for recognition of human over avian voices is therefore unlikely to reflect the relative extent of object differentiation within these semantic domains: rather, this dissociation implies dedicated processing modules for different categories of nonverbal auditory knowledge, in line with current fractionated neuropsychological models of human voice and environmental sound processing ( Goll et al, 2010a , Goll et al, 2010b , Slevc and Shell, 2015 ).…”

Section: Discussionmentioning

confidence: 91%

“…The cognitive organisation of knowledge about nonverbal sounds remains poorly understood. This is attributable in part to a lack of detailed neuropsychological models of nonverbal auditory semantics and also the comparative rarity of reports of selective auditory agnosia, which might reveal the critical underlying cognitive architecture ( Engelien et al, 1995 , Clarke et al, 2000 , Hattiangadi et al, 2005 , Saygin et al, 2010 , Slevc and Shell, 2015 ). It has been proposed that the processing of sounds as ‘auditory objects’ may be organised analogously to visual object processing, with corresponding neural mechanisms in auditory cortex and its connections in the temporal, parietal and frontal lobes ( Goll et al, 2010a , Goll et al, 2010b , Brefczynski-Lewis and Lewis, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Agnosia for bird calls

et al. 2018

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“…It is important to distinguish injuries that occur along the central auditory pathways before the decussation into the superior olivary nucleus that may lead to asymmetrical SNHL, from those potentially responsible for associated auditory agnosia [ 36 ]. This condition refers to impairments in sound perception and identification despite intact hearing, cognitive functioning, and language abilities [ 37 ].…”

Section: Inner Ear and Brainmentioning

confidence: 99%

Post traumatic deafness: a pictorial review of CT and MRI findings

et al. 2016

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Hearing loss is a common functional disorder after trauma, and radiologists should be aware of the ossicular, labyrinthine or brain lesions that may be responsible. After a trauma, use of a systematic approach to explore the main functional components of auditory pathways is essential. Conductive hearing loss is caused by the disruption of the conductive chain, which may be due to ossicular luxation or fracture. This pictorial review firstly describes the normal 2-D and 3-D anatomy of the ossicular chain, including the incudo-malleolar and incudo-stapedial joints. The role of 3-D CT in the post-traumatic evaluation of injury to the temporal bone is then evaluated. In the case of sensorineural hearing loss, CT can detect pneumolabyrinth and signs of perilymphatic fistulae but fails to detect subtle lesions within the inner ear, such as labyrinthine haemorrhage or localized brain axonal damage along central auditory pathways. The role that MRI with 3-D-FLAIR acquisition plays in the detection of inner ear haemorrhage and post-traumatic lesions of the brain parenchyma that may lead to auditory agnosia is also discussed.Key Points• The most common middle ear injuries are incudo-malleolar and incudo-stapedial joint luxation.• In patients with SNHL, CT can detect pneumolabyrinth or perilymphatic fistula• 3-D-FLAIR MRI appears the best sequence to highlight labyrinthine haemorrhage• Axonal damage and brain hematoma may lead to deafness

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“…Auditory agnosia is defined as an impairment in perceiving or understanding sounds despite intact hearing and otherwise retained language function including reading, writing, and speech. 1 Subtypes include verbal auditory agnosia (inability to understand spoken words), non-verbal agnosia (inability to understand environmental sounds), and amusia (inability to discriminate pitch or recognize melodies). [1][2][3] Auditory agnosia may result from bilateral lesions to any structure along the auditory pathway, including the temporal lobes or the medial geniculate bodies of the thalamus.…”

mentioning

confidence: 99%

“…1 Subtypes include verbal auditory agnosia (inability to understand spoken words), non-verbal agnosia (inability to understand environmental sounds), and amusia (inability to discriminate pitch or recognize melodies). [1][2][3] Auditory agnosia may result from bilateral lesions to any structure along the auditory pathway, including the temporal lobes or the medial geniculate bodies of the thalamus. 4 Unilateral lesions, typically affecting the auditory cortex, have also been reported as well as bilateral lesions of the pons and midbrain.…”

mentioning

confidence: 99%