A finger moving across dry sand meets resistance that the eye cannot see. The sand shifts in ways too small for conscious measurement, yet something in the hand registers the change. Beneath the ...

A resurfaced 1943 study brings the history of human experiments conducted on Indigenous children in Canadian residential schools into focus.

Although humans' visual perception of the world appears complete, our eyes contain a visual blind spot where the optic nerve ...

New research shows how psychedelics alter visual processing and boost memory-linked brain circuits to generate hallucinations, revealing mechanisms with therapeutic implications.

A bonobo demonstrated the ability to track imaginary objects in controlled tests, challenging the belief that imagination is uniquely human and hinting at deep evolutionary roots. In a set of ...