The question is straightforward enough: How does the brain learn to make sense of the visual world? The full answer is complicated by the fact that infants can’t talk about what they’re taking in.

Study finds decreasing activity in the eye can help overcome visual impairment.

In adults, certain regions of the brain’s visual cortex respond preferentially to specific types of input, such as faces or objects — but how and when those preferences arise has long puzzled neuro