Goll, Johanna C; Crutch, Sebastian J; Loo, Jenny HY; Rohrer, Jonathan D; Frost, Chris; Bamiou, Doris-Eva; Warren, Jason D; (2010) Non-verbal sound processing in the primary progressive aphasias. Brain, 133 (Pt 1). pp. 272-285. ISSN 0006-8950 DOI: https://doi.org/10.1093/brain/awp235
Permanent Identifier
Use this Digital Object Identifier when citing or linking to this resource.
Abstract
Little is known about the processing of non-verbal sounds in the primary progressive aphasias. Here, we investigated the processing of complex non-verbal sounds in detail, in a consecutive series of 20 patients with primary progressive aphasia [12 with progressive non-fluent aphasia; eight with semantic dementia]. We designed a novel experimental neuropsychological battery to probe complex sound processing at early perceptual, apperceptive and semantic levels, using within-modality response procedures that minimized other cognitive demands and matching tests in the visual modality. Patients with primary progressive aphasia had deficits of non-verbal sound analysis compared with healthy age-matched individuals. Deficits of auditory early perceptual analysis were more common in progressive non-fluent aphasia, deficits of apperceptive processing occurred in both progressive non-fluent aphasia and semantic dementia, and deficits of semantic processing also occurred in both syndromes, but were relatively modality specific in progressive non-fluent aphasia and part of a more severe generic semantic deficit in semantic dementia. Patients with progressive non-fluent aphasia were more likely to show severe auditory than visual deficits as compared to patients with semantic dementia. These findings argue for the existence of core disorders of complex non-verbal sound perception and recognition in primary progressive aphasia and specific disorders at perceptual and semantic levels of cortical auditory processing in progressive non-fluent aphasia and semantic dementia, respectively.
Item Type | Article |
---|---|
Keywords | auditory perception, non-verbal sound, agnosia, dementia, environmental, sounds, frontotemporal lobar degeneration, pure word deafness, semantic, dementia, human brain, environmental sounds, speech-perception, temporal-lobe, recognition, language, object |
Faculty and Department | Faculty of Epidemiology and Population Health > Dept of Medical Statistics |
PubMed ID | 19797352 |
ISI | 273492800023 |
Related URLs |
Download
Filename: awp235.pdf
Licence: Creative Commons: Attribution-Noncommercial-No Derivative Works 3.0
Download