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. 2012 Apr 28;62(4):309–315. doi: 10.1007/s12576-012-0201-3

Fig. 4.

Fig. 4

The dynamic range of the a-wave amplitude is from the level of ‘the normal resting membrane potential’ to the ‘saturated potential’, which should be the maximum of the a-wave in response to an intensive light stimulation. Hypoxia could pull photoreceptor’s ‘saturated potential’ back to the dynamic region but with limited room (from that level to the level of ‘saturated potential’) for light response