In general systems theory, what is the role of negative feedback?

In general systems theory, negative feedback plays a crucial role in maintaining stability and homeostasis within a system. When a system experiences a deviation from its desired state or norm, negative feedback mechanisms are activated to counteract that deviation. This feedback helps to bring the system back to its equilibrium or stable state.

For instance, in a biological system, if body temperature rises above normal, the body initiates processes like sweating to cool down, thus restoring the normal temperature. Similarly, in therapeutic contexts, when a family system exhibits maladaptive behaviors, negative feedback can involve interventions that encourage the system to adjust and return to healthier patterns of interaction.

The concept of homeostasis is central to understanding how systems operate, as it describes the self-regulating processes through which systems maintain stability despite external changes. By countering excesses and reinforcing balance, negative feedback ensures that systems function effectively over time.