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 60 for “"auditory nerve"”.
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A model for firing patterns of auditory nerve fibers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1963.
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Low-frequency bias-tone effects on auditory-nerve responses to clicks and tones : investigating multiple outer-hair-cell actions on auditory-nerve firing
… cells (OHCs) amplifies basilar-membrane (BM) and auditory-nerve (AN) responses to low-level sounds. The recent finding that medial olivocochlear (MOC) efferents (which innervate OHCs) inhibit AN initial peak (ANIP) responses from mid-to-high-level clicks, but do not inhibit initial BM responses, …
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Pitch representations in the auditory nerve : two concurrent complex tones
… concurrent sounds are important cues used in auditory scene analysis and also play a major role in music perception. To investigate the neural codes underlying these perceptual abilities, we recorded from single fibers in the cat auditory nerve in response to two concurrent harmonic complex …
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Discharge characteristics of auditory nerve fibers for pulsatile electrical stimuli
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1996.
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Supra-Characteristic-Frequency Response in Gerbil Auditory Nerve Frequency Tuning Curves
… in turn, leads to inner hair cell excitation and auditory nerve fiber (ANF) responses. The goal of this study is to better understand the mechanics of inner hair cell excitation which leads to hearing. BM motion and ANF tuning are generally very similar, but the ANF had appeared to be unresponsive …
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Predicting lateralization performance at high frequencies from auditory-nerve spike timing
… and computational models. Phase locking of auditory-nerve fibers in anesthetized cats was characterized using both the synchronization index and autocorrelograms. With both measures, phase locking is stronger for PT than TS, and for TS than for SAM tones. Phase locking to SAM tones and TS …
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Auditory-nerve fiber responses to amplitude modulated tones and multi-tonal stimuli
… data from the firing patterns of single auditory-nerve-fibers (ANFs) from which basilar-membrane tone-response group delays can be calculated for both high and low best-frequency (BF) positions along the basilar membrane. These calculated basilar-membrane group delays were compared to …
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Using knockout mice to study the molecular mechanisms that shape auditory nerve responses
… can be obtained by recording from single auditory (AN) fibers, primary afferents connecting cochlear inner hair cells to the brain. This thesis provides the first systematic analysis of fundamental response properties of the mouse AN, including rate and timing of spontaneous and …
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Phase anomalies and plateaus in auditory nerve fiber responses to high-frequency tones
… patterns have not been found in responses of auditory-nerve fibers (ANF) from the base of the cochlea, primarily because these ANFs do not have synchronized responses to high-frequency tones. We sought counterparts to the BM responses in auditory nerve fibers (ANF) by using a new method that …
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The relation between the compound action potential and unit discharges of the auditory nerve
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1979.
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Auditory-nerve and energy-detection models of temporal summation in hearing: a theoretical and experimental investigation
… one based on the neuroelectrical activity of the auditory nerve and one on energy-detection theory, are presented and developed in detail: both are shown capable of predicting the result of the bursts and gaps experiment. Seven experiments are reported. Experiment 1 found the reaction time to the …
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Spatio-temporal representation of the pitch of complex tones in the auditory nerve and cochlear nucleus
… to the pitch of harmonic complex tones in the auditory nerve (AN) saturate at high levels, and temporal cues fail to predict the strong pitch of resolved harmonics. Thus, neither pitch representation accounts for all key psychophysical observations. Recently, it has been shown that the AN also …
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The Representation of Normally-Voiced and Whispered Speech Sounds in the Temporal Aspects of Auditory Nerve Responses
… common representations support and describe auditory mechanisms for speech perception.
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Methods of frequency selectivity and synchronization measurement in single auditory nerve fibers : application to the alligator lizard
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1985.
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Towards a better speech processor for cochlear implants : auditory- nerve responses to high-rate electric pulse trains
… deaf patients by electrically stimulating the auditory-nerve (AN). With current implants, the representation of the sound waveform in temporal discharge patterns of the auditory nerve is severely distorted. The distortion is particularly significant at higher (>600 Hz) frequencies, for which …
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Temporal Aspects of Speech: The Encoding of Naturally Produced and Spectrally Reduced Synthetic Speech by the Auditory Nerve
… is contained within the firing patterns of the auditory nerve to uniquely identify stop consonants even when the spectral cues are significantly degraded. Furthermore, these patterns are consistent with the psychoacoustic findings, in that stimuli that produced greater pattern similarity to the …
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The response of single auditory-nerve fibers in the cat to single tones: synchrony and average discharge rate.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1974. Ph.D.
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Investigating the suppressive effects of a low-frequency bias-tone on auditory-nerve responses to tail-frequency tones
… signals are sent to the brain through the auditory nerve (AN). AN fiber threshold vs. frequency-response characteristics are band-pass shaped, with a sensitive, sharply-tuned tip centered at the "characteristic frequency" (CF) of the fiber. It is now well established that the sharp …
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Efferent effects on auditory-nerve responses to tones : substantial inhibition even at high sound levels and tail frequencies
Thesis (Ph. D.)--Massachusetts Institute of Technology, Whitaker College of Health Sciences and Technology, 1998.
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