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 (BEMχ = 6.7,
**, P < 0.01) and T3 (BEM
χ
= 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 (BEMχ
= 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
χ
= 20.8, ***,
P < 0.001) and that at T4 (BEMχ
= 4.9,
P = 0.027).