Abstract
Primates use rapid eye movements, called saccades, to scan their surroundings. Most of the well-studied neuronal elements that generate saccades are located in the brainstem, but recently our labs and others showed that the midline cerebellum is required for the production of accurate and stereotypical saccades. This oculomotor cerebellum receives mossy fiber inputs from saccade-related areas in the brainstem and sends its outputs to the brainstem saccade burst generator. How Purkinje cell simple spike activity is formed, and how the activity affects the movement in real-time are not well understood. In this chapter, we describe techniques to address these questions. Using optogenetics we manipulate the simple spike activity of cerebellar Purkinje cells while the saccade is ongoing. We also express optogenetic opsin to inhibit a subset of mossy fiber inputs to the cerebellum and examine the effects of the inhibition on simple spike activity.
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Acknowledgments
Our studies described here were supported by National Institute of Health grants: EY028902 (RS), EY023277 (YK), OD010425, RR00166 (Washington National Primate Research Center), P30EY001730 (Vision Research Core of UW), and National Science Foundation BCS-1724176 (RS, YK).
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Soetedjo, R., Kojima, Y. (2022). Optogenetics in Complex Model Systems (Non-Human Primate). In: Sillitoe, R.V. (eds) Measuring Cerebellar Function. Neuromethods, vol 177. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-2026-7_15
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DOI: https://doi.org/10.1007/978-1-0716-2026-7_15
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