Based on my very limited understanding it seems that anything that interacts with a system can be treated as an "observer", and thus a chain of observations can

Based on my very limited understanding it seems that anything that interacts with a system can be treated as an "observer", and thus a chain of observations can occur as one particle interacts with the next, enlarging the system that is in superposition for the next observer. Do physicists axiomatically treat a "conscious observer" as an atomic unit? It seems the case based on neurological and psychological research that the mind is actually not a single unit but many units working together, and the sense of a singular self is an illusion, which would correlate with the fact that we are made up of a conglomeration of atoms and systems made of these atoms. When we say that a person is observing a quantum system, could this actually be a cascade of observations of various parts of the mind rather than a singular event, since the mind is not monolithic? On a side note (and perhaps unrelated), if different parts of the brain/mind could be in different quantum states, could this be a factor in how the mind operates?