Gestalt Principles: These are principles that guide how we organize visual stimuli, such as proximity (objects close together are perceived as belonging together) and closure (we tend to fill in missing parts of an object).
Figure-Ground Perception: This is the ability to distinguish between an object of interest (the figure) and its surrounding background (the ground), helping us focus on what's important.
Perceptual Constancy: This is the tendency for us to perceive objects as unchanging despite changes in their sensory inputs, such as perceiving the size of an object as constant even when viewed from different distances.