Figure 6

Evidence of picture-object equivalence in mice. (a) During a sample session, mice explored abstract silhouette pictures of a symmetrical object, and 24 h later, explored the novel object significantly more than the “familiar” object. Inset, mice demonstrate object discrimination, indicating that the retrieved memory of the viewed silhouette conveyed enough information to permit recognition of the “familiar” object; furthering support for picture-object equivalence in mice. (b) Mice explored abstract silhouette pictures of a rotated asymmetrical object, and 24 h later, explored the novel object significantly more than the “familiar” object. Inset, mice demonstrate object discrimination, indicating that the retrieved memory of the viewed silhouette conveyed enough information to permit recognition of the “familiar” object¹⁶; furthering support for picture-object equivalence in mice. *P < 0.05 versus “familiar” object.