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Correlation between models and observed data. Kernel smoothing function estimate (KS-density) of the correlation coefficients between the four predicted models and the observed data in the two experiments. Significant differences between the dual- and single-alternative experiments were assessed using two-sample Kolmogorov–Smirnov test (KS-statistic, p value), considering all 40 sliding time intervals (left) and only the peak response (right).
