Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 55 for “"auditory brainstem"”.
-
Analysis of auditory brainstem neurons in the grassfrog
Contains fulltext : mmubn000001_080241409.pdf (Publisher’s version ) (Open Access)
-
Precise Temporal Processing in the Gerbil Auditory Brainstem
… and recognition are two important tasks of the auditory system. Both require accurate processing of temporal cues. Microsecond differences in the arrival time of a sound at the two ears (interaural time differences, ITDs) are the main cue for localizing low frequency sound sources in space. …
-
Auditory brainstem and middle-latency responses with optimized stimuli: experiments and models
… role of cochlear processing for the formation of auditory brainstem and middle latency responses (ABR and MLR). The main emphasis is put on the development and evaluation of an optimized (chirp) stimulus based on the concept of compensation for travel time differences along the basilar membrane. …
-
Auditory brainstem response latency in noise as a marker of cochlear synaptopathy
… is thought to arise from central sites of the auditory system with the assumption that sound encoding at the auditory nerve (AN) is robust. Despite this assumption, growing evidence from animal and human studies suggests that acoustic exposure, too modest to elevate hearing thresholds, can …
-
Outcomes of Auditory Brainstem Implantation in Adults with Postlingual Deafness: A Systematic Review
… postlingual deafness, who was seen for follow-up auditory performance testing at one-year post-activation or later.</p> <p><strong>Results: </strong>Thirteen articles met inclusion criteria for this systematic review. The studies utilized various materials for speech-recognition assessment to …
-
The education programmes and perceived competence in using auditory brainstem response testing : the audiologists' perspective
Includes bibliographical references (leaves 84-93).
-
Temporal coding of the periodicity of monaural and binaural complex tones in the guinea pig auditory brainstem
… histograms of responses of neurons in the auditory system to monaural complex tones show a peak at the period of the pitch reported by humans – a ‘neural correlate of pitch’. However, the same pitch percept can be generated by presenting complexes with harmonics distributed across both ears …
-
Auditory system comparisons between sand cats and other felid species : acoustic input admittance of ears and auditory brainstem responses
… acoustic power absorption, and thresholds of auditory- brainstem responses. In a zoo, measurements were made in 37 ears of 23 anesthetized specimens, including sand cats and five other felid species. Sand cats have lower mean thresholds at frequencies between 0.25 and 5 kHz by 6-9 dB than …
-
Functional properties and Ca2+-dependent feedback modulation of voltage-gated Ca2+ channels in glutamatergic nerve terminals of the mammalian auditory brainstem
Die funktionellen Eigenschaften vieler präsynaptischer Nervendigungen der Säugetiere sind noch weitgehend unbekannt, da die meisten Nervendigungen des Zentralnervensystems für elektrophysiologische Messungen nicht direkt zugänglich sind. In der vorliegenden Arbeit wurden funktionelle Eigenschaften …
-
A multiple test battery approach during the assessment of the auditory nervous system of patients with multiple sclerosis
… many studies illustrated some degree of auditory involvement associated with this disease. The auditory brainstem response has dominated the field during the assessment of the auditory system of patients with Multiple Sclerosis. Although this objective test procedure is useful during the …
-
Noise-induced cochlear neuronal degeneration and its role in hyperacusis -- and tinnitus-like behavior
… neuronal degeneration results in abnormal auditory behavior, indexed by the acoustic startle response and prepulse inhibition (PPI) of startle. Responses to tones and to broadband noise were measured in mice exposed either to a neuropathic exposure causing primary neuronal degeneration, or …
-
Impact of Acoustic and Tactile Multi-Modal Stimulation on Objective and Subjective Measures of Permanent Intractable Tinnitus: A Prospective Research Study
… by tinnitus suffers. It is believed that brainstem structures, such as cochlear nuclei, play a major role in tinnitus generation and that perception occurs at the cortical level. Studies suggest that hearing-loss causes a cascade of neuropathic effects in the central hearing system that is …
-
Development of Auditory Sensitivity in Barn Owls (Tyto furcata pratincola)
… 12 kHz) and clicks of different rates (5-90 Hz). Auditory evoked potentials (AEPs) of the auditory nerve were recorded using the auditory brainstem response (ABR). Barn owl hearing matured in a similar trend to other developing vertebrates, including kittens, budgerigars, chickens, and gerbils. …
-
The Effects of Selective Serotonin Reuptake Inhibitors (Ssri) on Auditory Measures in Clinically Depressed Subjects.
… reuptake inhibitor (SSRI) medication on auditory skills in clinically depressed subjects. Experimental subjects prescribed an SSRI were tested in a medicated and an unmedicated condition, and the test results were compared. Furthermore, the experimental group was compared with a control …
-
Towards a neurophysiological correlate of the precedence effect: from psychoacoustics to electroencephalography
… shed light on the question on which stage of the auditory pathway information related to the precedence effect is processed. Investigations were made by means of psychoacoustics and auditory evoked potentials (AEPs). Elaborate preparative psychoacoustical measurements were performed in order to …
-
Effects of developmental PCB exposure on audiogenic and amygdala kindling models of seizure
… protein expression in the IC, the site in the auditory brainstem where AGS are initiated. There was a significant increase in the number and severity of AGS in rats (both males and females) from the 6 mg/kg PCB dose group compared to control. There also was a significant decrease in GAD65 but …
-
Accuracy of 40-Hz Automated and Sinusoidal ASSR and Tone-Burst ABR Thresholds in Normal-Hearing Adults Using Kalman-Weighted Filtering
Auditory brainstem responses (ABR) and auditory steady state responses (ASSR) are useful for estimating hearing in difficult-to-test populations. For these populations, Kalman-weighted filtering and in-situ pre-amplification can be advantageous for ABR recordings, but little is known about the …
-
Intrinsic Biophysical Properties of Frog Central Auditory Neurons
… biophysical characteristics of frog central auditory neurons. For this, I utilized in vitro preparations to investigate various basic membrane properties of neurons in three major auditory centers, the dorsal medullary nucleus (DMN), the torus semicircularis (TS), and the auditory thalamus. …
Page 1 of 3