Task 6 Surfing the edge of chaos Flashcards
Self-organization
A process in which a structure/pattern in an open system emerges without specifications from the outside environment
Example:
Everytime rat smells new odour the ofactory bulb reorganizes storage space in a new way, so that already stored odours are also reorganized
Dynamic system
A system whose changes over time can be characterised by equations that show how current values of variables depend mathematically on previous values of those variables (Can be linear and Non-linear)
Non-linearity
Change in a system does not happen gradually, but in a discontinuous, nonlinear way that includes destabilisation
Linearity
Change in a system happens gradually, in a steady way
Attractors
Relatively stable states that a system tend to settle into, system usually has multiple attractor states
Phase transitions
Change from one attractor state to another
Catastrophe theory
Small changes in certain parameters of a nonlinear system can cause large changes of the behaviour of the system
Cusp catastrophe
A model that is three dimensional and has two control variables and one behavioural variable in which the stable solution will suddenly jump to an alternate outcome.
Fold catastrophe
At negative values of a, the potential has two extremes, one stable and one unstable, one dependent and one independent variable
Hysterisis
Tendency of system to stick to the lower level before suddenly making “catastrophic jump” ➔depending on the history
Chaos
Small changes in variables can produce dramatically different outcomes, explains catastrophic jumps
Bifurcation set
The shaded area in a cusp catastrophe model, where the behavior is bimodal and the edges serve as thresholds for a catastrophic jump. In shaded area behavior is unpredictable
Bimodality
one single combination of independent variables can have multiple dependent variable
Splitting factor
independent variable; it is the one responsible for the “splitting” in behaviour , determines bimodality
Chaotic attractors
Attractors that have a bounded pattern but becomes discontinuous after some repetitions which results in unpredictability