Figure 4.

Critical features underlying recognition of the transformed object views. For each rat, the saliency maps that were obtained for each transformed view of Object 3 and 4 are shown. Red and cyan patches refer, respectively, to significantly salient and anti-salient regions (as in Figure 2B). The yellow arrows in (A,B) point to the salient feature located at the intersection between the two upper lobes of Object 4. This feature was repeatedly selected by both rats, either throughout all (rat 7) or the first three (rat 8) object views. The green arrows in (B,C) point at the salient feature located on the noise-like lobe of Object 4, which become fully visible only for the azimuth rotated view to the left, thereby affording the possibility to be used as a distinctive feature (as it happens for rat 8 and 9).