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Satellite glial cells (SGCs) are supporting cells enveloping and isolating soma of neurons in sensory ganglia such as dorsal root ganglion (DRG) in the peripheral nervous system. Recent studies have shown that they are involved in intercellular communication between neuronal somata within ganglia in chronic pain and inflammatory conditions. One hypothesis proposed for this communication is via release...
Intracellular calcium spiking generates versatile signals that control various key neuronal functions. However, estimation of neuronal spiking pattern at subcellular spatial resolution remains challenging. In this context, we propose calcium imaging to estimate activities in soma, dendrite and axon, along with neuronal interconnections and network topology. Accordingly, we develop a novel integrated...
Retinal prosthetic implants have shown potential to restore partial vision to patients blinded by retinitis pigmentosa or dry age-related macular degeneration, via a camera-driven multielectrode array that electrically stimulates surviving retinal neurons. Commercial epi-retinal prostheses mostly use charge-balanced symmetric cathodic-first biphasic pulses to depolarize retinal ganglion cells (RGCs)...
Optical techniques such as two-photon (2p) calcium imaging have the potential to transform the way we interrogate neural circuits, both in the realm of basic neuroscience and in the development of brain-machine interfaces (BMIs). This may be possible by overcoming some of the limitations of electrophysiological methods. Here we ask if optical imaging signals, in particular 2p GCaMP6 calcium imaging...
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