shy of significanceP = 0.072
For the prolonged component of the DA response, a cue × group ANOVA yielded an interaction that was shy of significance ( F 1,25 = 3.52, P = 0.072; Fig. 4D , top), but regressing the difference in the port entry rates between nondegraded and degraded trials against the difference between prolonged signals also revealed a significantly positive relationship (β = 5.90, t 25 = 2.33, P = 0.028; Fig. 4D , bottom).