Glucose utilization in the auditory system: cochlear dysfunctions and species differences.
نویسندگان
چکیده
Deoxyglucose uptake in peripheral auditory tissues and inferior colliculus of the young CBA or C57BL/6J mouse increases with intensity of an acoustic stimulus from 25 to 85 dBA and decreases from 85 to 115 dBA. In 36-month-old CBA and 9-month-old C57BL with sensorineural hearing loss the metabolic response to stimulation is attenuated 50% or more. Metabolic responses to stimuli are qualitatively and quantitatively different in the gerbil and in the guinea-pig. It is concluded that cochlear dysfunctions are characterized by abnormal evoked metabolism; and that the stimulus-response pattern varies with species.
منابع مشابه
Correlation between Auditory Spectral Resolution and Speech Perception in Children with Cochlear Implants
Background: Variability in speech performance is a major concern for children with cochlear implants (CIs). Spectral resolution is an important acoustic component in speech perception. Considerable variability and limitations of spectral resolution in children with CIs may lead to individual differences in speech performance. The aim of this study was to assess the correlation between auditory ...
متن کاملComparison of Auditory Perception in Cochlear Implanted Children with and without Additional Disabilities
Background: The number of children with cochlear implants who have other difficulties such as attention deficiency and cerebral palsy has increased dramatically. Despite the need for information on the results of cochlear implantation in this group, the available literature is extremely limited. We, therefore, sought to compare the levels of auditory perception in children with cochlear implant...
متن کاملGender Difference in TEOAEs and Contralateral Suppression of TEOAEs in Normal Hearing Adults
Objectives: Otoacoustic emissions (OAEs) are sounds that originate in cochlea and are measured in external auditory canal and provide a simple, efficient and non-invasive objective indicator of healthy cochlear function. Olivo cochlear bundle (OCB) or auditory efferent system is a neural feedback pathway which originated from brain stem and terminated in the inner ear and can be evaluated non-i...
متن کاملThe Relationship Between Reaction Time of Electrical Stapedius Reflex and Auditory Performance in Cochlear-Implanted Children
Background: A common concern in some cochlear-implanted children is the lack of desired progress in auditory and listening skills. Such a concern remains despite proper verbal processor programming, additional disabilities, and continuous participation in hearing rehabilitation programs. A more detailed assessment of pathways and centers of the auditory processing at the lower end of the brain ...
متن کاملCOCHLEAR IMPLANTATION IN IRAN
Cochlear implantation has become an increasingly common procedure in the rehabilitation of selected cases of profound deafness.' Patients should have profound total bilateral sensorineural hearing loss. Sound is transformed into small electric currents which stimulate the auditory nerves in the cochlea and generate the hearing sensation. The nucleus cochlear implant is the result of more t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Comparative biochemistry and physiology. A, Comparative physiology
دوره 78 1 شماره
صفحات -
تاریخ انتشار 1984