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 14 of 14 for “"local field potential (LFP)"”.
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Neural Dynamics in the Developing Piriform Cortex of Awake Rats
… are observed in piriform cortex by recording local field potential (LFP) activity in piriform cortex of awake rats during the first three weeks of life (P0-21). At birth, the piriform LFP exhibits respiration and spindle oscillations in response to odor stimuli. Spindle oscillations increase …
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Time-varying phase relationship between spiking neuronal responses and local field potentials in olfactory processing in manduca sexta
… on the coincidence of their spiking relative to local field potential (LFP) oscillation phase. Using the sphinx moth, Manduca sexta, as a model system, we tested the predictions of the TOM with regard to the trial-to-trial consistency of odor driven oscillations, the phase-locking of action …
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The Impact of Early Life Adversity on Mediodorsal Thalamic-Prefrontal Cortex Maturation
… windows. We found that the pattern of PFC local field potential (LFP) responses to MD train stimulation is developmentally regulated through adolescence and is impacted by ELA exposure. Typically, the pattern of MD-evoked PFC LFP facilitation at 10Hz is dependent on local NMDAR whereas the …
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Passive experience-dependent plasticity in mouse primary visual cortex
… in primary visual cortex (V1) of mice. Chronic local field potential (LFP) recordings in layer 4 (L4) of V1 allow for the tracking of visually evoked potentials (VEPs) in response to phase-reversing sinusoidal grating stimuli. As a given visual stimulus becomes familiar to the mouse, the VEP …
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Temporal Dynamics of Endogenous and Stimulus-Driven Attention: Combined ECoG/fMRI Studies
… while being able to flexibly shift our focus to potentially rewarding or harmful stimuli. Functional brain imaging studies have identified networks of broadly distributed brain regions that are recruited during goal-driven attention (i.e. based on internal expectations or goals) and/or …
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Slipping into Sleep: neurodynamics of alertness transitions in humans and fruit flies
… using both single and multichannel local field potential (LFP) data to show how alertness transitions and sleep modulate different regions of the fly brain. Further, I validate the results by converging evidence from causal manipulations. Finally, I discuss how the mapping of …
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Cerebellar Coordination of Neuronal and Behavioral Rhythms
… respiratory rhythms and the interactions of local field potential (LFP) oscillations between the lobulus simplex (LS) in the cerebellum, medial prefrontal cortex (mPFC), and dorsal CA1 (dCA1) using multisite in vivo extracellular recordings in freely moving mice. We compared a mouse model of …
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The mouse visually evoked potential : neural correlates and functional applications
The visually evoked potential (VEP) is a local field potential (LFP) evoked in visual cortex in response to visual stimuli. Unlike extracellular single unit recordings, which allow us to probe the function of single spiking cells acutely, the chronic VEP technique gives us insight into ensemble …
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Multifunctional Polymer Fiber Probes for Biomedical Application
… modern biomedical applications, primarily in the fields of neural interfaces and tumor treatments. Understanding the neural basis of behavior requires monitoring and manipulating combinations of physiological elements and their interactions in behaving animals. Utilizing the thermal drawing …
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Towards Closed-Loop Deep Brain Stimulation: Behavior Recognition from Human STN
… the behaviors. Subthalamic Nucleus (STN) Local field Potential (LFP) is a great candidate signal for the neural feedback, because it can be recorded from the stimulation lead and does not require additional sensors. This thesis proposes novel detection and classification techniques for …
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Statistical Modeling of Disrupted Sensory Processing during Propofol Mediated Unconsciousness
… anesthetic agent, induces slow-oscillations in local-field potential (LFP) recordings. Spiking becomes strongly coupled to the phase of the slow-oscillations, creating alternating irregular “Up” and “Down” states of high and low activity, respectively. Although it is well established that these …
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Granular retrosplenial cortex layer 2/3 generates high frequency oscillation events coupled with hippocampal sharp wave-ripples and Str. LM high gamma
… region. In the hippocampal CA1 pyramidal layer local field potential (LFP), these processes take the form of theta and sharp wave ripples (SPW-Rs) for encoding and consolidation, respectively. As an animal runs through an environment, neurons become active at specific locations in the …
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Low-Intensity Ultrasonic Neuromodulation of the Rat Hippocampus
… as captured by the power spectrum of the local field potential (LFP), predicts sensitivity to tFUS. Our working hypothesis in Aim 2 is that amplitude-modulated stimulation will produce qualitatively different outcomes compared to the conventionally tested pulsed and continuous wave …
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Predicting and identifying signs of criticality near neuronal phase transition
… transition into unconsciousness using a mean-field model for interacting populations of excitatory and inhibitory neurons. The anaesthetic-induced changes are validated experimentally using published electrophysiological data recorded in anaesthetised rats. The criticality hypothesis …