EXCITATION
| Collection | International Encyclopedia of Systems and Cybernetics |
|---|---|
| Year | 2004 |
| Vol. (num.) | 2(1) |
| ID | ◀ 1209 ▶ |
| Object type | General information, Methodology or model |
The triggering or more or less sudden increase of some process.
The excitation agent is a stimulus , i.e. a new or increased input received from the environment or by priming through a positive feedback .
Excitation is a very general phenomenon , that can be observed in many physical, chemical, biological, ecological, economic, psychological and social processes.
In many cases the excitation process is coupled with an inhibition process. their alternance allows the system to maintain itself in a restricted range of stability conditions. Excessive or too frequent excitation in some process may lead to crossing a threshold of unstability and destroy the system if not compensated in due time.
See also
Catalysis, Constraint, Far-from-equilibrium condition, Instability, Oscillators, Periodicity, Stability (Poly-)