Figure 4.

Scalar property test on the freezing (upper part) and respiration (lower part) temporal patterns in adult rats. The scalar timing rule predicts better superposition of the curves in relative time (multiplicative transform, middle panel), compared to no rescaling (left panel) or rescaling by an additive shift of the x-axis (right panel). Superposition between the two curves was indexed by eta-square (η²) indicated in the bottom right of each graph, the highest values being highlighted in bold characters.