| Titre : | Sudden cortical hearing loss for speech : a case report (2001) |
| Auteurs : | Babür Akkuzu ; Aye Gül Fisiloglu ; Levent Özlüoglu ; Ufuk Can |
| Type de document : | Article |
| Dans : | Ear and hearing (Vol.22, n°1, Février 2001) |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Déficience auditive ; Maladie cérébro vasculaire ; Perception de la parole ; Surdité neurosensorielle (SNHL) |
| Résumé : |
A 35-yr-old male patient experienced a sudden loss of speech understanding due to a bilateral cerebrovascular disease. A detailed summary of audiological and neurological findings was presented. Findings indicated that the presence of Pa waves of the Middle Latency Response (MLR) may be a positive prognosis for improvement in hearing thresholds and speech understanding.
The primary auditory cortex is located in the posterior superior temporal lobe bilaterally and receives information from both cochlea via the ipsilateral and bilateral routes. Each ear is represented more strongly in the opposite hemisphere (Kneebone & Burns, 1981). Because of this bilateral representation complete cortical or cerebral deafness would require lesions affecting the transverse gyri of Heschl bilaterally (Walsh, 1990). A severe auditory deficit due to a bilateral cerebral lesion of the primary auditory cortex and the auditory radiation is extremely rare (Kaga, Shindo, & Tanaka, 1997). Unilateral lesions of the primary auditory zones of the cortex do not have a marked effect on auditory acuity but do lead to subtle auditory deficits (Kneebone & Burns, 1981). This hearing problem is usually referred to as "cortical deafness" since most cases have damage to the temporal lobe in both hemispheres (Tanaka, Kamo, Yoshida, & Yamadori, 1991) which results in a total bilateral loss of hearing. The term auditory agnosia has been used to refer to the impaired capacity to comprehend verbal or nonverbal auditory stimuli in spite of an intact auditory mechanism (Coslett, Brashear, & Heilman, 1984). Pure word deafness implies, on the other hand, difficulty in speech sound recognition with relatively normal reading, writing and speaking abilities (Wolberg, Temlett, & Fritz, 1990). |
| Disponible en ligne : | Oui |
| En ligne : | https://login.ezproxy.vinci.be/login?url=https://ovidsp.ovid.com/ovidweb.cgi?T=JS&NEWS=n&CSC=Y&PAGE=toc&D=yrovft&AN=00003446-000000000-00000 |
Exemplaires (1)
| Cote | Support | Localisation | Section | Disponibilité |
|---|---|---|---|---|
| Ear and hearing. Vol.22, n°1 (Février 2001) | Périodique papier | Ixelles | Rez | Consultation sur place uniquement Exclu du prêt |
