PS261 Lecture 6: CHOICE BEHAVIOUR
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At any given moment we are faced with a choice to do dozens of different behaviours, each of which would pay off with a different schedule of reinforcement. Concurrent schedule is used in the lab by offering animal a choice between two responses, each of which pays off according to a specific schedule. Rrl is relative rate of responding on left. Bl/br = number of behaviours to the left and right alternatives. If pigeon pecks left key 10 times and right key 5 times, then: Rrl = 10 (10 + 5) = 1/15 = 0. 67. Relative rate of reinforcement earned on each alternative: rrl = rl / (rl + rr) rr = relative rate of reinforcement rl/rr = number of reinforcements earned on left and right alternatives. If an animal is faced with two of the same schedules the relative rate of responding on both alternatives will be the same, both will equl 0. 5.
