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. 2011 Oct 19;31(42):14944–14951. doi: 10.1523/JNEUROSCI.1046-11.2011

Figure 2.

Figure 2.

Behavioral interference during asymptotic learning. A, Interference for six different intervals between training period 1 (P1) and training period 2 (P2) (Δ0–Δ24 h). Each panel (corresponding to one interval) shows the natural logarithm of the just noticeable difference [LN(JND)] plotted as a function of session in experimental quadrant (red line) and control quadrant (blue line). For all intervals except the 24 h interval, P1 and P2 training were completed on the same day. In the Δ24 h condition, P1 and P2 training were alternated from day to day, and a session therefore took 2 d (testing took 30 d). B, Data averaged over P1–P2 intervals. C, Difference between learning curve asymptotes (ΔAsymptote in ln units) in experimental and control quadrant averaged over the last eight sessions. A one-way ANOVA showed that there was no significant difference in the size of ΔAsymptote between intervals (F(5,23) = 0.22, p = 0.951). Shaded red and blue regions and error bars are standard errors; numbers in top right corner represent N participants (conventions are similar for all figures).