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 17 of 17 for “"Temporal Coding"”.
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Electrophysiological Signatures of Spatial and Temporal Coding in Humans
… memory and navigation. However, how spatial and temporal information contribute to spatial and mnemonic representations is still poorly understood in humans. One of the neural signatures in humans related to memory and navigation are neural oscillations in cortical and subcortical regions (such …
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The role of short term synamptic plasticity in temporal coding of neuronal networks
… to functions of signal processing namely, temporal integration and coincidence detection by modulating the input synaptic strength. This dissertation has two parts. First we study the effects of short term synaptic plasticity in enhancing coincidence detecting ability of neurons in the …
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ms-Scale temporal coding in the thalamus predicted by whisker dispersive vibrational transduction
… a question of debate. Considering the remarkable temporal precision in the whisker system with spike timing as small as 10μs, there is potential for ultrahigh capacity information channel in kb/s. To study temporal structures in the stimuli that could be encoded by this information channel, highly …
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Temporal coding of the periodicity of monaural and binaural complex tones in the guinea pig auditory brainstem
… the auditory system, termed ‘binaural fusion’. Temporal coding generally deteriorates along the auditory pathway; binaural fusion should occur at a relatively early stage. One of the prime candidates is in the superior olivary complex (SOC). Although the guinea pig auditory system has been …
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Neural coding of sound envelope in reverberant environments
Speech reception depends critically on temporal modulations in the amplitude envelope of the speech signal. Reverberation encountered in everyday environments can substantially attenuate these modulations. To assess the effect of reverberation on the neural coding of amplitude envelope, we recorded …
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Impact of Noise and Spike Initiation Properties on the Encoding and Transmission of Neural Information
… how robustly information is represented in each coding scheme. Additionally, information can be lost if neural representations are not transmitted with high fidelity to downstream neurons. In both cases, properties of the input (its amplitude and kinetics) and properties of the neuron (its spike …
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Advanced Light Field Frame Prediction For Optimized Compression
… compensation as well as latency during the encoding and decoding process. This paper focuses on a contribution approach that uses advanced prediction with affine and translational motion models and optimized view prediction structures. This method allows a significant compression performance …
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Effects of Hearing Aid Amplification on Robust Neural Coding of Speech
… timing in the neural signals (known as spatiotemporal coding) is important for speech perception, but there is little research that relates spatiotemporal coding and hearing aid amplification.</p> <p>This research uses a combination of computational modeling and physiological experiments to …
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Sound temporal envelope and time-patterns of activity in the human auditory pathway : an fMRI study
The temporal envelope of sound strongly influences the intelligibility of speech, pattern analysis, and the grouping of sequential stimuli. This thesis examined the coding of sound temporal envelope in the time-patterns of population neural activity of the human auditory pathway. Traditional …
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Processing Submillisecond Timing Differences in a Model Electrosensory System
… of sensory cues requires peripheral encoding followed by extraction of behaviorally relevant signal components by central neurons. Some sensory systems can detect temporal information with submillisecond accuracy, despite these signals occurring faster than the approximately 1 ms …
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A Brain for Language and the Language of the Brain
… thermal noise. We also focus on the problem of temporal coding of information by neurons. We show that a wide class of models of spiking elements display a high sensitivity of the output message noise to the particulars of the input message. We show that predictions based on these models are …
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Active Pre-Touch Sensing: From Biology to Neuromorphic Biomimetic Artifacts
… data, a spiking neural network using a temporal coding scheme was here developed for potential implementation in dedicated neuromorphic hardware. The technical perspective is incorporated at the neuronal level of the network, where neuron and synapse models reflect the idealized behavior …
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Information Encoding by Individual Neurons and Groups of Neurons in the Primary Visual Cortex
… is known as the latency; (3) that this so-called temporal coding serves as a mechanism by which the brain might discriminate among stimuli that evoke similar firing rates; (4) that action potentials preceded by interspike intervals of different durations can encode different features of a …
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Individual differences in supra-threshold auditory perception - mechanisms and objective correlates
… subset of a very redundant set of spectral and temporal features. In stark contrast, communication in a complex, crowded scene places enormous demands on the auditory system. Spectrotemporal overlap between sounds reduces modulations in the signals at the ears and causes masking, with problems …
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A biophysical conductance-based model of neural spike timing and interspike interval correlations
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Minimum-error, energy-constrained source coding by sensory neurons
Neural coding, the process by which neurons represent, transmit, and manipulate physical signals, is critical to the function of the nervous system. Despite years of study, neural coding is still not fully understood. Efforts to model neural coding could improve both the understanding of the …
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Indirect Training Algorithms for Spiking Neural Networks based on Spiking Timing Dependent Plasticity and Their Applications
… Signals. These algorithms are used to solve the temporal and spatial input-</p><p>output mapping problem using temporal coding. The other type of problem is to</p><p>mapping input output ring rates using rate coding.</p><p>To test the algorithms, SNNs are used to control both virtual and real …