Topic: first-order gratings

Object vision relies on the ability to tolerate identity-preserving transformations, such as scaling, translation, and rotation of visual objects. Even larger transformations can be achieved when a visual pattern emerges from second-order (texture) cues or by configural arrangements of local features constructing a global (Gestalt) figure. While humans generalize across such transformations, it remains unclear whether lower mammals, such as rodents, share with us this ability. Recent studies have shown that rats can recognize objects despite identity-preserving transformations, but little is k