![]() ![]() To perceive depth, humans and animals rely on a number of brain processes and visual cues. Imagine trying to pick something up if you don’t know what shape it is, or crossing the road if you can’t accurately perceive the distance of the cars. We need to understand it to move around our environment and interact with objects. Depth helps us to understand the shape of objects and their location relative to ourselves. This means that our perception of the world is not a simple reflection of sensory information, it is an interpretation of it.Īlong with colour and motion, the perception of depth is very important to help us visually perceive things. When we look at something, the brain uses visual cues –sensory signals that convey information – to help work out what that thing is. The process of visual perception is a best guess scenario. ![]() We might argue that something is beautiful or ugly, for example, but we would be surprised to learn that the same object is perceived as a sphere by one person but as a cube by another. But while we can appreciate that others might hold different opinions of objects we see, not many people know that factors beyond our control can influence how we perceive the basic attributes of these objects. As the old saying goes, beauty is in the eye of the beholder. ![]()
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