Neurobiological Cognitive Integration (NCI): The Autonomic Brief, the Budget That Constrains It, and the Life It Renders

What we know. The human nervous system takes in roughly a billion bits of sensory information per second; conscious awareness receives about ten. The rest is processed below awareness — largely what we call the subconscious — where it regulates the body and directs behavior. What reaches awareness is a compressed summary, which we call the autonomic brief, and it arrives with little record of what was left out, or why. Who decides. Not the person, at least not consciously. The choosing is done before awareness, governed by settings that were in place long before anyone could have chosen them, and the brief carries no sign that a choice was made. Everyone lives inside a selection they did not make and cannot directly see, and no two people's selections are made the same way. The question. How are ten chosen from a billion? Why do two people given the same information come away with different summaries, each sure that theirs is simply the truth? Why can the same person, rested and exhausted, seem like two different people? How much of what we read as character, or as disorder, is really the setting of that choice and the energy available to run it? And if the setting is fixed as the brain matures, is it ever reset? Where it led. This work began as an attempt to make Neurobiological Cognitive Integration (NCI) measurable. Its earlier account of that selection had been built from behavioral observation; taking it apart led through eight research fields that rarely cite one another, from sensory neuroscience to neuroimmunology. Assembled, their findings supplied the mechanism: a model with two parameters. Position is the stable setting of the filter — what we usually call temperament, and the reason two people can take the same event so differently. It is built from two cortical networks and three admission tags, whose combinations, we propose, settle into five recurring profiles: Two cortical networks turn processing inward, toward internal modeling, or outward, toward external action. Three admission tags flag novelty, threat and resonance with other people. Five recurring profiles are the stable combinations: the same five the earlier account identified from behavior, now derived from the architecture that produces them. Range is the energy left to run the setting once the brain's fixed costs are paid. It rises and falls with sleep, stress and inflammation, and it is the reason one person, rested and exhausted, can seem like two. Four consequences followed: Every strength carries a matching blind spot. A filtered view feels like plain reality. Exhaustion should cost flexibility first and the filtering itself last. Questionnaires record how people describe the brief, not the setting underneath it. When it can change. Position starts partly set by the genes that build the brain, is tuned by experience through childhood and adolescence, and is largely settled by the mid-twenties, after which it has long been assumed, but not shown, to be fixed. Examining what holds it in place, we discovered that the physical brakes involved can come off: animal studies show that inflammation dissolves them. That raised the question this monograph considers its most consequential: what happens to a person's setting while the brakes are off? We propose that it can drift toward its extremes and is then held there once they re-form. That would be a change in weighting, not learning, and it would mean that a range of conditions could shift a person's temperament in adulthood and hold it there. How to test it. This monograph reports no new data. Every proposal is marked as a hypothesis and kept separate from the findings it builds on. We set out ten falsifiable predictions and specify what a valid measurement instrument would have to do; none yet exists. NCI is not a diagnostic system. Why it matters. If the account holds, much of what we attribute to character and vulnerability is the setting and the energy to run it, not volition alone. People are built to differ, no one is built to be complete, and difficulty is more often a shortfall to be funded than a failure of will. Keywords: Neuroinflammation, Perineuronal Nets, Critical-Period Plasticity, Subcortical Gating, Cerebral Energetics, Default Mode Network, Dorsal Attention Network, Metacognition, Active Inference, Personality Neuroscience, Individual Differences, Discard Law, Phenotype-Pathology Continuum.