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.
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Showing 1 to 20 of 54 for “"Temporal processing"”.
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Temporal Processing by Caenorhabditis elegans Sensory Neurons
… to uncover cellular and circuit mechanisms of temporal processing. This work should firmly establish C. elegans as a viable platform for applying quantitative dynamical systems methods to understanding how a nervous system processes sensory information, integrates it with an evolving internal …
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Robust speech recognition based on spectro-temporal processing
In dieser Dissertation werden neuartige spektro-temporale Merkmale untersucht, die einer Verbesserung der Robustheit automatischer Spracherkennungssysteme unter ungünstigen akustischen Bedingungen dienen sollen. Ergebnisse physiologischer und psychoakustischer Arbeiten weisen auf eine wichtige …
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Robust speech recognition based on spectro-temporal processing
In this thesis, novelle spectro-temporal feature extraction techniques are evaluated for enhancing the robustness of automatic speech recognition systems (ASR) in adverse acoustical conditions. Recent physiological and psychoacoustical findings indicate that spectro-temporal processing plays an …
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Precise Temporal Processing in the Gerbil Auditory Brainstem
… 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. Traditionally, ITDs are thought to be …
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Auditory spectro-temporal processing in the envelope-frequency domain: experiments and models
This thesis investigates the processing of the envelope of sounds in the human auditory system. Psychoacoustic methods are used to examine the i) envelope-frequency selectivity, ii) coding of amplitude-modulation depth, and the iii) analysis of complex modulations. A functional model of hearing is …
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Spatial and temporal processing biases in visual working memory in specific anxiety
… distortions in specific levels of information processing are relevant for the onset and maintenance of the disorder. A detailed knowledge about the nature of these distortions would have important implications for the therapy of anxiety, as the implementation of confrontative or cognitive …
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Temporal Processing of News: Annotation of Temporal Expressions, Verbal Events and Temporal Relations
The ability to capture the temporal dimension of a natural language text is essential to many natural language processing applications, such as Question Answering, Automatic Summarisation, and Information Retrieval. Temporal processing is a ¯eld of Computational Linguistics which aims to access …
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Effects of sound direction on spectral and temporal processing in the frog midbrain
… of sound direction on two aspects of signal processing, spectral and temporal processing, were investigated by single-unit extracellular recording from the frog inferior colliculus (IC). The neural activities were evaluated from 3 to 5 sound directions within 180$\sp\circ$ of frontal field in …
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Auditory Temporal Processing in Children with Specific Language Impairment Compared to Same-Age Controls
… (SLI) originates from immature auditory temporal integration (ATI), but results are inconsistent. We compared electroencephalographic data from 25 children with SLI aged 6-11 years to 25 typically developing peers. Participants’ neural responses to a 50ms tone presented alone were …
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Estimation of the dynamics of a moving source by an integrated spatial and temporal processing.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1973. Elec.E.
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Cell Size Distribution in the MGN and Associated Auditory Temporal Processing Deficits in P1 and P7 HI Injured Rodents
… with underlying deficits in rapid auditory processing (RAP; i.e., the ability to process acoustic differences such as between phonemes in speech). Data demonstrating a relationship between RAP and language impairments in infants/children has also led to studies of RAP in dyslexic …
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Effects of Hearing Experience, Music Training and Spectral-Temporal Processing on Music and Speech Perception in Adult Cochlear Implant Users
… chords were likely to provide a higher number of temporal interactions , such as beats, which CI users may be able to detect due to their reliance on temporal envelope cues. Further investigation of these ideas were carried out in experiment 2 (chapter 3), where a hierarchy of frequency …
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CHRONIC LOW-LEVEL LEAD EXPOSURE AFFECTS THE MONOAMINERGIC SYSTEM IN THE MOUSE SUPERIOR OLIVARY COMPLEX
… have been associated with altered auditory temporal processing in both humans and animals. Temporal processing is used to decode complex sounds and to detect a signal within a noise background, and it is thought that neurons of the superior olivary complex (SOC) in the brainstem play a role …
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CHRONIC LOW-LEVEL LEAD EXPOSURE AFFECTS THE MONOAMINERGIC SYSTEM IN THE MOUSE SUPERIOR OLIVARY COMPLEX
… have been associated with altered auditory temporal processing in both humans and animals. Temporal processing is used to decode complex sounds and to detect a signal within a noise background, and it is thought that neurons of the superior olivary complex (SOC) in the brainstem play a role …
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Spatial -Temporal Multiuser Receivers for Cdma-Based Communications
… this work, we first provide a tutorial to basic temporal CDMA receiver designs. Improved temporal interference cancellation techniques are then developed using a direct measure of bit estimate reliability in the cancellation stage. We then investigate several techniques for integrating multiple …
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Individual differences in audiovisual integration and timing
… view is that the brain strives for and achieves temporal unity across different sensory modalities. Using individual differences in subjective synchrony and audiovisual temporal processing, this thesis examines whether audiovisual synchronisation across different audiovisual processes is ever …
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Investigation of Offset Analgesia during Acute Central Sensitization, Opioid Administration and Complex Regional Pain Syndrome
… quality, unpleasantness, as well as spatial and temporal distribution. The temporal processing of nociceptive information, or the mechanisms supporting how pain is perceived across the timeframe of a stimulus, is one aspect of pain that is disrupted frequently in chronic pain states. For example, …
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Mechanisms of timing: an integrative theoretical approach
… neurophysiological, behavioral, and applied temporal processing. These sub-domains are organized based on the tasks traditionally used to assess timing. Neurophysiological timing (Level I) was assessed using a duration-based mismatch negativity paradigm (dMMN), which fundamentally requires …
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A psychophysical investigation of audio-visual timing in the millisecond range.
… techniques and human observers to investigate temporal processing in the millisecond range. The thesis contains five main sections. Introductory chapters provide a brief overview of the visual and auditory systems, before detailing our current understanding of duration processing. During the …
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