Document Detail


Contribution to the differentiation of peripheral versus central tinnitus via auditory brain stem response evaluation.
MedLine Citation:
PMID:  4004647     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Auditory brain stem response (ABR) parameters were evaluated in 54 subjects with unilateral idiopathic subjective tinnitus in order to verify the possibility of detecting its site of origin. All the subjects had normal hearing or a symmetrical bilateral sensorineural hearing loss. All the cases in whom middle or inner ear disease had been diagnosed, were excluded. Subjects, classified on the basis of their mean auditory threshold and masking curves according to Feldmann, underwent a residual inhibition (RI) test and ipsilateral narrow-band noise masking before a second ABR test was performed. Patients with positive RI made up the A+ group, while those with negative RI made up the A- group. The main characteristics observed were an increase of the mean latency values of wave I in the tinnitus ear in the A+ group while, after masking, the values of the affected and unaffected ears almost overlapped. An increase in the latency values of wave V, unaffected by the masking procedure, could be observed in A- patients. The occurrence of waves I and III was often affected in the tinnitus ears in both groups, but it increased, after masking, only in the A- patients. Based on the obtained data, the authors conclude that there may be a substantial difference concerning ABR parameters between the patients in whom residual tinnitus masking is demonstrable compared with those in whom it is not.
Authors:
M Maurizi; F Ottaviani; G Paludetti; G Almadori; A Tassoni
Related Documents :
8312847 - Auditory, visual and auditory-visual identification of emotions by hearing and hearing-...
18057947 - Auditory steady-state responses to multiple simultaneous stimuli in children with funct...
17536197 - Aging effects on the activation of the auditory cortex during binaural speech listening...
22052247 - Calcium imaging of neuronal activity in the most rostral parafacial respiratory group o...
1851187 - Cortical activation in profoundly deaf patients during cochlear implant stimulation dem...
15837557 - Increased dendritic complexity and axonal length in cultured mouse cortical neurons ove...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Audiology : official organ of the International Society of Audiology     Volume:  24     ISSN:  0020-6091     ISO Abbreviation:  Audiology     Publication Date:  1985  
Date Detail:
Created Date:  1985-06-24     Completed Date:  1985-06-24     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  1273752     Medline TA:  Audiology     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  207-16     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Evoked Potentials, Auditory*
Female
Hearing Loss, Sensorineural / diagnosis
Humans
Male
Middle Aged
Neural Inhibition
Perceptual Masking
Reaction Time
Tinnitus / diagnosis*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  A factor analytical study of tinnitus complaint behaviour.
Next Document:  Auditory brainstem responses of the cat: on- and off-responses.