TED-Ed: How optical illusions trick your brain - Nathan S. Jacobs

The video explores optical illusions using examples like grids, muffin pans, and Abraham Lincoln's photo. It explains how our brain interprets visual information, often leading to illusions. The grid illusion is due to lateral inhibition, while lighting assumptions affect our perception of the muffin pan. The upside-down Lincoln face highlights how our brain uses shortcuts in facial recognition. These illusions reveal how our brain constructs a 3D world using visual cues and assumptions.

What is the significance of edges in visual perception as mentioned in the text?

Describe how the brain's visual cortex operates based on the lighting assumptions.

How does the brain manage cognitive energy when processing visual information?