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. 2001 Apr 10;98(9):5282–5287. doi: 10.1073/pnas.091094798

Figure 3.

Figure 3

Population neuronal responsiveness to the imprinting and nonimprinting stimuli. The change (%) in the proportions of neurons responsive to the IS (●) and a NIS (■), relative to the proportion responsive before training are shown for Tests T1–T5 (the mean mid-points of the Tests relative to the start of training are indicated). The proportion of neurons responsive to the IS increased significantly to T2 (BEMχInline graphic = 6.7, **, P < 0.01) and T3 (BEM χInline graphic = 5.2, *, P = 0.023). At T4 the proportion of neurons responsive to the IS was significantly less than the pooled proportions at T2 and T3 (BEMχInline graphic = 4.5, P = 0.034) and was not significantly different from that at T1. At T5 the proportion of neurons responsive to the IS was significantly higher than that at T1 (BEM χInline graphic = 20.8, ***, P < 0.001) and that at T4 (BEMχInline graphic = 4.9, P = 0.027).