Being able to tell the difference between a photo of something and the actual thing itself – picture-to-object equivalence, in science speak – is a useful test for better understanding the visual and cognitive function of other primates, birds, a
But how far does this ability to interpret a flat image extend in the animal kingdom?
"Our study challenges the view that perceptual limitations of mice render them inappropriate for modeling human memory and visual processing and that familiarity-based recognition is independent of the hippocampus,""Our findings also provide strong support that a functional mouse hippocampus is required for this form of nonspatial visual recognition memory and picture-object equivalence.
Inhibiting a key part of the hippocampus in mouse brains removed this ability to distinguish between 2D and 3D versions of objects, showing the researchers that the cognitive ability works in a similar way to how it does in our own brains.
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