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. Author manuscript; available in PMC: 2010 Aug 4.
Published in final edited form as: Neuroscience. 2009 May 3;162(1):184–194. doi: 10.1016/j.neuroscience.2009.04.060

Figure 4.

Figure 4

Current-clamp recordings from an Off (A&B) and an On (C) ganglion cells. A and B: recordings from an Off ganglion cell under scotopic and photopic conditions, respectively. Under scotopic conditions the Off ganglion cell was in the APB sensitive rod Off-pathway, determined by using APB. The light onset and offset are indicated above the recording trace. The stimulus light intensity was 20 Rh*/rod/s and the contrast was 1. The highest frequency of the flashing spot stimuli that this cell followed was 1 Hz (A). After switching to photopic condition, this cell is capable of following flashing spots of light stimuli of up to 5Hz (B). The stimulus light intensity was 5000 Rh*/rod/s, the background light intensity was 1500 Rh*/rod/s, and the contrast was 0.54. C: A current-clamp recording from an On ganglion cell under scotopic conditions. This cell followed light stimulus frequency of up to 5 Hz. The stimulus light intensity was 22 Rh*/rod/s and the contrast was 1.