On the character of consciousness

The brain, as an open thermodynamic system, consumes free energy in the least time across all its processes, from cellular metabolism to cognition and consciousness. This principle, derived from statistical mechanics, treats cognitive operations as identical in organizational principle to other natural processes, emerging along path-dependent, non-determinate trajectories. Consciousness integrates neural networks for coherent free-energy consumption—meaningful action—and the entire hierarchy of systems can be summed up as thermodynamic entropy. The theory also acknowledges awareness in other systems at different levels of nature's hierarchy.

Study at a glance

Abstract

The human brain is a particularly demanding system to infer its nature from observations. Thus, there is on one hand plenty of room for theorizing and on the other hand a pressing need for a rigorous theory. We apply statistical mechanics of open systems to describe the brain as a hierarchical system in consuming free energy in least time. This holistic tenet accounts for cellular metabolism, neuronal signaling, cognitive processes all together or any other process by a formal equation of motion that extends down to the ultimate precision of one quantum of action. According to this general thermodynamic theory cognitive processes are no different by their operational and organizational principle from other natural processes. Cognition too will emerge and evolve along path-dependent and non-determinate trajectories by consuming free energy in least time to attain thermodynamic balance within the nervous system itself and with its surrounding systems. Specifically, consciousness can be ascribed to a natural process that integrates various neural networks for coherent consumption of free energy, i.e., for meaningful deeds. The whole hierarchy of integrated systems can be formally summed up to thermodynamic entropy. The holistic tenet provides insight to the character of consciousness also by acknowledging awareness in other systems at other levels of nature’s hierarchy.