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PSYCH 3A03 (56)
Paul Faure (56)
Lecture

Tutorial 12- Course Wrap Up and Review Session.docx

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Department
Psychology
Course
PSYCH 3A03
Professor
Paul Faure
Semester
Fall

Description
December 12 , 2013 Psych 3A03: Audition Tutorial 13: Course Wrap Up and Review Session Tinnitus - Ringing or hissing of the ears in the absence of any external stimulus is tinnitus – it is a behavioural symptom of auditory dysfunction - Originally thought to be cochlear in origin (spontaneous stimulation of the basilar membrane) and not correlated with hearing loss - Now believed to be correlated with hearing loss and known to be generated by the central auditory system (auditory cortex and limbic system) - Tinnitus probably arise as a side effect of sensorineural hearing loss due to neural plasticity - Subjects with hearing loss report tinnitus sensations - Tinnitus seems to occur at frequencies that overlap the region of hearing loss - Mechanism of tinnitus generation may be spontaneous activity of the central auditory system due to absence of input from peripheral auditory system - Adjusting the pitch of the tone to the tinnitus sound: highest matching value correlate with region of hearing loss Ototoxic Drugs - Some drugs selectively damage parts of the auditory system and can cause hearing deficits - Some antibiot
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