If you move your left arm and not your right arm, you have selected that arm. If you had no selectivity, you would not be able to activate one part without activating the whole body.
At a couple months of age, I baby would see the silhouette of his mom if the lighting is right. The outline perception is one of the functions of what we call the posture gear. The seven month old would be able to see details within his mom’s face. At that point, the child could see the face at the same time seeing the silhouette. This represents two functions occurring at the same time which we call parallel processing.
If that child stares at a screen for years, all the information he needs is contained within the high detailed and small images of the screen. He would then be strengthening this focus intensity which would overpower the posture intensity. Physiologically, the more high resolution detection of the focus intensity would be strong, while the posture intensity of vision would not have enough stimulation to stay strong.
This person would have a bias towards details. When that person goes into the world, he will be like a high resolution camera, and tend to be overwhelmed. He will also have a hard time understand context. He might be considered intelligent in a certain way, but the posture system sets the context for detailed information.
If we were treating that person, we could manipulate the environment in such a way to strength the posture input like with images only of silhouettes and no fine details. This child is not strong enough to select the outlines.
Notice that in dividing the body into the different intensities, we do not get into the specific content the person is seeing but instead look at how the persons lenses are functioning. Two people could have gone to the exact same concert or museum and would have a completely different experience based on how their system is tuned. The basic intensities of excitability, focus, endurance, and posture are illustrated well with vision but extend to auditory and kinesthetic intensities, which automatically extend to every function of the body. These intensities apply to the whole body. Any one of them can be selected or isolated but when one is extremely weak the person will need a drill that specifically isolates it.
There is a much more important of the fact that a persons experience of the world is determined more by their lens than it is by the actual world. Suppose you are in a defensive state of mind which we would consider one of the excitable states. You are seeing the actual threat against you. It might be that there is some minor threat but those minor things are amplified relative to other things. If you grew up always having to defend yourself, you would understandably select that state easily. You might be incapable of selecting another state. If someone could show you a different lens, you might now have the capacity of seeing every situation differently. Imagine if you saw aggression against you as a sign of
