Numbness of soul
| Classification according to ICD-10 | |
|---|---|
| R48.1 | Agnosia |
| ICD-10 online (WHO version 2019) | |
As auditory agnosia , and acoustic agnosia or auditory agnosia is called a fault. Those affected perceive words acoustically, but do not recognize (understand) them.
Already at the beginning of the last century the term was defined as “loss of acoustic memory images with preserved hearing and understanding , word deafness, sensory aphasia ” (quoted from Dornblüth ). The clinical picture is originally shown in ear, nose and throat medicine . The disturbances present are shown schematically in the Wernicke-Lichtheim scheme as an interruption in the connection between the sensory language center and the conceptual center .
Forms of deafness
Generalized auditory agnosia
The generalized auditory agnosia arises from the bilateral lesion of the upper temporal gyrus (gyrus temporalis superior), the Heschl's transverse gyrus and their afferent and efferent tracts up to the thalamus (corpus geniculatum mediale). Patients with generalized auditory agnosia are unable to assign meaningful environmental noises or spoken language a semantic meaning. However, apart from mild aphasic impairments, they can speak, write and read.
Pure noise diagnosis
The pure noise diagnosis occurs after bilateral or right hemispheric lesions, whereby the critical regions coincide with those of the generalized auditory agnosia (see above). Like the patient group described above, those affected by noise diagnosis - with mild aphasic impairments - are able to speak, write and read spoken language. In addition, they usually have a good understanding of language. Impairments show up in the isolated ability to identify non-verbal everyday and environmental noises. Although very few cases have been described to date, it can be assumed that the incidence of this disorder is underestimated. As already mentioned above, this is due to the fact that the examination of the central auditory functions is not routinely examined and that the affected persons usually find their disorders unspecific.
Affective auditory agnosia
Affective auditory agnosia belongs to the paralinguistic auditory agnosias and has so far only been described after right-hemispheric lesions. In these agnosias, the ability to use spoken language to combine the different acoustic parameters with certain paralinguistic or metalinguistic information is impaired. As with the generalized auditory and pure noise diagnosis - with the aphasic impairments already mentioned - speaking, reading and writing are unimpaired. The content of spoken language is recorded, but those affected are not able to understand, for example, the gender and approximate age of a speaker or the emotional connotation of utterances.
See also
literature
- Hans-Otto Karnath , Peter Thier: Cognitive Neuroscience . 3. Edition. Springer-Verlag, Berlin 2012, ISBN 978-3-642-25526-7 , chapter 17.
- Joachim Funke , Peter Frensch : Handbook of General Psychology - Cognition . Hogrefe Verlag, Göttingen 2006, ISBN 3-8409-1846-4 , chapter 3.2.
Web links
Individual evidence
- ↑ Alphabetical index for the ICD-10-WHO version 2019, volume 3. German Institute for Medical Documentation and Information (DIMDI), Cologne, 2019, p. 796
- ^ Numbness of the soul , www.duden.de
- ^ Otto Dornblüth: Clinical Dictionary. 13/14. Edition. 1927, (online) ; last viewed on June 9, 2009.
- ↑ H. Loebell: Deafness of the soul. In: European Archives of Oto-Rhino-Laryngology. Volume 154, Numbers 1–2 / April 1944, Springer, (online)
- ^ Roche Lexicon Medicine. 5th edition. Urban & Fischer, 2003, (online) ; last viewed on June 9, 2009.
- ^ A b c Hans-Otto Karnath , Peter Thier: Neuropsychology . Springer-Verlag, Berlin 2003, ISBN 978-3-540-67359-0 , chapter 12.2-12.4.
