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 9 of 9 for “"Single unit recording"”.
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Mechanisms of rapid receptive field reorganization in rat spinal cord
… rat dorsal horn was examined using extracellular single unit recording. Subcutaneous injection of lidocaine into RFs of dorsal horn neurons results in expansion of their RFs within minutes. The expanded RFs appear adjacent to or/and proximal to original RFs. Out of 63 neurons tested, 36 (58%) show …
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From representation to recognition : MEG studies of face perception
… milliseconds apart from each other. Yet, unlike single-unit recording, it can be used in normal human subjects. Three new findings about human face recognition will be reported in this thesis. First, a face stimulus begins to be categorized as a face within 100 ms after stimulus onset in humans, …
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Central Neural Cardiorespiratory Areas in Exercise
… to determine neural activity in response to a single bout of exercise in sedentary and trained rats. Trained rats showed fewer labeled neurons than sedentary in the posterior hypothalamus, periaqueductal grey, nucleus tractus solitarius and rostral ventrolateral medulla, all of which are known …
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Nucleus accumbens dopamine and investigatory behavior : modulation by the ventral subiculum of the hippocampus through the dopamine cell bodies of the ventral tegmental area
… cell firing; this increase was confirmed by single unit recording of identified VTA dopaminergic neurons. VS-evoked elevations in NAS dopamine were blocked by perfusion of the sodium channel blocker tetrodotoxin (TTX) or the ionotropic glutamate receptor antagonist, kynurenic acid (KA) into …
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Role of Mouse Visual Cortex in Perception of Stimulus Features
… consequences, I also apply in vivo extracellular single-unit recording in the mouse visual areas to characterize adaptation profiles. I observe a cascaded increase of adaptation along the geniculate visual pathway and much heterogeneity of adaptation within any recorded visual areas. In all, these …
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Unique Response Properties and GABA<sub>A</sub> Receptor Function in Medial Geniculate Body Neurons of Young and Aged Fischer Brown Norway Rats
… of a slice preparation that permitted whole cell recordings from juvenile, young adult and aged rat MGB neurons. The presence of high affinity GABA<sub>A</sub>Rs and the impact of aging on synaptic and high affinity GABA<sub>A</sub>R function were examined. Low concentrations of gaboxadol …
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Low-frequency activity in the primate superior colliculus activates a head turning synergy: evidence using neck EMG recordings
… gaze shifts. We simultaneously recorded dSC unit discharge and electromyographic (EMG) activity of dorsal neck muscles from three rhesus monkeys performing a gap-saccade paradigm with different levels of reward expectancy. As reward expectancy increased, low-frequency dSC activity increased …
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Device design factors for enhancing the functionality of chronic intracortical microelectrodes
… microelectrodes. First, the longitudinal recording performance of a modified site geometry was evaluated. With planar silicon microelectrodes, sites placed on the edge outperformed the sites placed on the center, demonstrated by increased number of detectable single units with enhanced …
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Investigating the role of the hippocampal formation in episodic and spatial memory
… combination of pharmaceutical manipulations and single-unit recording techniques in rodents. The first part of this thesis focuses on episodic-like memory, defined by the original episodic memory triad: ‘what-where-when’ (Tulving 1972), which enables the behavioural aspects of episodic memory to …