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The rows represent the individual networks (labeled as N13, N14, N15, and N16). Each network was given a sequence of three phases, represented by the columns labeled as AS/PAM (autoshaping/positive automaintenance), NAM (negative automaintenance), and PAM. The dots represent R activations at ts = 7 (the moment before reinforcement). The dashed lines mark the R activation criterion for sensory feedback from responding.
