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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Curr Protoc Neurosci. 2020 Sep;93(1):e100. doi: 10.1002/cpns.100

Figure 3. Representation of a free choice trial in the Risky Decision-making Task.

Figure 3.

A. At the start of each trial, the food trough light is illuminated. B. A poke into the lit trough causes both levers to extend. Rats choose between the two levers, causing both to retract. C. Choice of the left lever results in immediate delivery of a single pellet, with no other programmed consequences (small, “safe” reward). D. Choice of the right lever results in immediate delivery of three pellets accompanied by increasing probabilities of footshock punishment (large, “risky” reward). After either lever press sequence, the trial progresses to the intertrial interval, and then repeats.