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. 2006 Nov;86(3):269–283. doi: 10.1901/jeab.2006.56-05

Fig 6. Conditions 8 and 9.

Fig 6

Log P/N response ratios following food, magazine-light only, or a green keylight for the subsequent 40 responses. The upper panel (Condition 8) shows performance when the magazine-light ratio was correlated +1.0 with the food ratio, and the green-keylight ratio was correlated −1.0 with the food ratio. The lower panel (Condition 9) shows performance when the magazine-light ratio was correlated −1.0 with the food ratio and the green-keylight ratio was correlated +1.0 with the food ratio. The data were averaged across the 6 pigeons.