Figure 6.

Responses of a third inferotemporal cell to the nine stimuli. The activity of this cell was recorded in the order of Difficult 1, Easy, and Difficult 2. Conventions are same as those used in Figures 4 and 5. Both the main effect of condition (p = 0.003) and interaction (p < 0.0001) were significant in a factorial ANOVA (with stimulus and condition as factors).