Abstract:
OBJECTIVES:This study aimed to confirm that the brain processing of auditory stimuli in tinnitus patients is impaired (Attias, Urbach, Gold, & Shemesh, 1993). In addition, possible brain processing dysfunction in response to visual stimuli was assessed. DESIGN:Auditory and visual event-related potentials (ERPs) and reaction times were recorded in response to a standard oddball target detection paradigm. The subjects consisted of 21 noise-induced chronic tinnitus patients and 21 age- and hearing-matched control subjects without tinnitus. RESULTS:The tinnitus patients had significantly prolonged latencies for the auditory nontarget ERP components N1, N2, and P3 and for the auditory target ERP P3 component. The auditory P3 component was also significantly reduced in amplitude for both target and nontarget stimuli for the tinnitus patients. The visual P3 target and nontarget components were similarly significantly prolonged in latency for the tinnitus patients. Reaction times to both target and nontarget stimuli were significantly delayed for the tinnitus patients for both stimulus modalities. CONCLUSIONS:These findings point to a cortical information processing dysfunction in chronic tinnitus patients associated primarily with auditory stimuli. ERPs may provide an objective electrophysiologic tinnitus measure.
journal_name
Ear Hearjournal_title
Ear and hearingauthors
Attias J,Furman V,Shemesh Z,Bresloff Idoi
10.1097/00003446-199608000-00004subject
Has Abstractpub_date
1996-08-01 00:00:00pages
327-33issue
4eissn
0196-0202issn
1538-4667journal_volume
17pub_type
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