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ABSTRACT: Background
Recently it has been shown in animal studies that deep brain stimulation (DBS) of auditory structures was able to reduce tinnitus-like behavior. However, the question arises whether hearing might be impaired when interfering in auditory-related network loops with DBS.Methods
The auditory brainstem response (ABR) was measured in rats during high frequency stimulation (HFS) and low frequency stimulation (LFS) in the central nucleus of the inferior colliculus (CIC, n = 5) or dentate cerebellar nucleus (DCBN, n = 5). Besides hearing thresholds using ABR, relative measures of latency and amplitude can be extracted from the ABR. In this study ABR thresholds, interpeak latencies (I-III, III-V, I-V) and V/I amplitude ratio were measured during off-stimulation state and during LFS and HFS.Results
In both the CIC and the CNBN groups, no significant differences were observed for all outcome measures.Discussion
DBS in both the CIC and the CNBN did not have adverse effects on hearing measurements. These findings suggest that DBS does not hamper physiological processing in the auditory circuitry.
SUBMITTER: Smit JV
PROVIDER: S-EPMC5633028 | biostudies-literature | 2017
REPOSITORIES: biostudies-literature
Smit Jasper V JV Jahanshahi Ali A Janssen Marcus L F MLF Stokroos Robert J RJ Temel Yasin Y
PeerJ 20171006
<h4>Background</h4>Recently it has been shown in animal studies that deep brain stimulation (DBS) of auditory structures was able to reduce tinnitus-like behavior. However, the question arises whether hearing might be impaired when interfering in auditory-related network loops with DBS.<h4>Methods</h4>The auditory brainstem response (ABR) was measured in rats during high frequency stimulation (HFS) and low frequency stimulation (LFS) in the central nucleus of the inferior colliculus (CIC, <i>n</ ...[more]