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Group mean data from the adjusting-delay and adjusting-magnitude schedules. Adjusting-delay schedule. Delays to reinforcer B (dB) in successive sessions. Ordinate: dB (s, logarithmic scale); abscissa: sessions. The horizontal broken lines show the two fixed values of dA (2 s and 18 s). Adjusting-magnitude schedule. Sizes of reinforcer B (qB) in successive sessions. Ordinate: qB (μl, logarithmic scale); abscissa: sessions.
