Retina: The retina is a layer at the back of the eye that contains specialized cells called photoreceptors, which convert light into electrical signals that can be processed by the brain.
Visual Cortex: The visual cortex is a region in the brain located at the back of the head that receives and processes visual information sent from the eyes. It plays a crucial role in perceiving shapes, colors, motion, and depth.
Gestalt Principles: Gestalt principles are rules or principles that describe how we tend to perceive objects as organized wholes rather than individual parts. They include concepts like proximity, similarity, closure, continuity, and figure-ground relationship.