People tend to fixate first on high contrast or unique (relative to the surrounding area) points in a visual scene. This is a result of and is a process.

stimulus salience, bottom-up

Explanation:

Stimulus Salience is a feature that captures, attracts, or diverts our attention from the status quo. It tends to shift our focus to a novel thing, although such may be mundane or otherwise. It stems from a comparison between what is obtainable and what is currently happening. An example of this is seeing a human walk heads down, such a view will automatically catch the viewer's attention.

Bottom-up is a way of processing information and getting knowledge from the environment to bring about ideas in an organization. It involves the pattern of thinking and acting. Bottom-up is a useful tool in an organization as it helps to identify the abilities of people working on a particular project. Also, bottom-up helps to enhance communication among individuals working as a team on a given project.