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. Author manuscript; available in PMC: 2013 Jan 11.
Published in final edited form as: J Neurosci. 2012 Jul 11;32(28):9528–9536. doi: 10.1523/JNEUROSCI.6194-11.2012

Figure 2.

Figure 2

Stimulation of individual OHCs by “puffs” of high potassium saline. A. Current-clamp recording from a row 3 OHC. 10 ms duration puff of 40 mM KCl extracellular solution at vertical red line elicited an action potential. B. Overlay of responses from a single OHC when high potassium solution was puffed directly onto that cell, or onto the adjacent OHC (green) or two hair cells away (blue) in the same row. C. Overlay of responses from a single OHC when high potassium solution was puffed directly onto that cell (black trace, row 3) or onto the adjacent row 2 (green) or row 1 (blue) OHC. D. A single OHC spiked without fail in response to repeated 10 ms puffs of high potassium solution (at red lines). With an inter-puff interval of ~1.2 s (puffs 1–6) there was no change in baseline membrane potential. At inter-puff intervals of ~400 ms the baseline membrane potential depolarized by ~5 mV.