a shape that resembles something alive, our brains can quickly fill in the missing details.
A curved shell may suddenly look like a body.
A dark mark can become a head.
A stain can appear to be an eye.
Once someone suggests that an object might be dangerous, our expectations can influence what we see. Psychologists refer to this kind of influence as top-down processing.
In other words, perception isn’t always just about what reaches our eyes. What we already believe can affect how we interpret it.
