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. Author manuscript; available in PMC: 2018 Mar 21.
Published in final edited form as: Neuroscience. 2014 Jul 11;277:250–266. doi: 10.1016/j.neuroscience.2014.07.006

Fig. 6. Responses of type II DCN cells to photostimulation.

Fig. 6

A&B. Under current-clamp conditions, long (A) and short (B) laser pulses induce depolarization mixed with IPSPs in small DCN cells, where the IPSPs, but not the depolarizations, are sensitive to the GABAa receptor blocker bicuculline. C. Under voltage clamp and in the presence of bicuculline, photostimulation of varying durations induces inward currents that typically include phasic and plateau components. D. A brief laser pulse at constant intensity induces current responses that vary in size by discrete steps, suggesting a unitary response at this synapse. E. A typical type II DCN cell, showing that 1 ms laser pulses induce depolarization, but rarely spiking.