Understanding how Pictures are Seen is Important for Comparative Visual Cognition.

A few of the interesting points discussed in the commentators were addressed. One commentator pointed out that a lack of perceived correspondence between pictures and objects might arise from a species' cognitive limitations. Only by using appropriate stimulus displays can one reveal both abilities and their limitations. A second commentator discussed evidence from the neuropsychological literature and emphasized a distinction between the extraction of two-dimensional and three-dimensional information in pictures. Additional literature was discussed to support the argument that information in pictures may be perceived in multiple ways. A framework for determining under what circumstances animals perceive correspondence between picture processing and object recognition is much needed in comparative cognitive research.