Figure 11.

Responses to repetitive photorelease of Ca²⁺. Whole-cell currents induced by repetitive photorelease of Ca²⁺ (DMNP-EDTA) in an olfactory sensory neuron at −50 mV. The arrows indicate the timing of the light flashes at 0.32 (A) and 1 (B) relative light intensity. Currents elicited by the second flash were very similar to those induced by the first one, indicating the absence of adaptation (130 and 135 pA at 0.32 [A]; 970 and 870 pA at 1 relative light intensity [B]). Three olfactory sensory neurons showed a similar absence of current adaptation to the second photorelease of Ca²⁺.