Negative Feedback Loop Logic describes a systemic control mechanism wherein the output of a process acts to inhibit or reverse the process, thereby maintaining homeostasis within a bounded domain. This theoretical construct relies on the formal definition of a system variable deviating from a setpoint, triggering an error signal that initiates an opposing action to restore equilibrium. It functions as a fundamental regulatory principle in control theory and biological systems, distinct from positive feedback mechanisms which amplify deviations.
Prerequisite chain context: requires Homeostasis Definition in Physiology.