Ｂrain intermittently captures a representation of outer world through multiple sensors. It does not need a feedback circuit, because the renewed operation will be soon processed. The brain is able to run independently from the real world. But the operation is carried out by the memory that was implemented through its experiences. Activity of human is always biased by a motivational state. But it is a current activated state of the brain in which model of outer world is involved.
A newborn baby makes behavior without motivation. The first stage of self-organizing intelligent system does not know the desired goal, because the neuron does not distinguish afferent pathway and efferent pathway. A neuron is considered as a representation of its inputs. The representation on intermittent concurrent stimuli is memorized at the activity. The stimuli captured from various monitors make sub-groups partially. The representation of a part is shared in the network of neurons. Although the result of reaction will change the situation, the implemented circuits are used for the next reaction. The brain works by partial activations of the hierarchical networks of the representations.
An intelligent electronic impulse driven circuit was manufactured in order to demonstrate as a simple model of the open-loop controller. Each activated state of the model is transferred to the activated state specified by the impulse that comes from individual input.