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Systems Theory

Systems Theory. KEY CONCEPTS. Systems Holistic Interdependence and Mutual Influence Hierarchy ( suprasystems , systems, and subsystems) Feedback and Control Loops Equilibrium and Homeostasis Negative Feedback (constancy loops) Positive Feedback (variety loops)

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Systems Theory

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  1. Systems Theory

  2. KEY CONCEPTS • Systems • Holistic • Interdependence and Mutual Influence • Hierarchy (suprasystems, systems, and subsystems) • Feedback and Control Loops • Equilibrium and Homeostasis • Negative Feedback (constancy loops) • Positive Feedback (variety loops) • Morphogenetic and morphostatic effects • Boundaries • Open v. Closed Systems • Boundary Permeability • Inputs and Outputs

  3. SYSTEM Jack again compares goal and outcome . . . more error! Jack compares goal and outcome . . . goal is met Jack compares goal and outcome . . . error comparator Jan throws tantrum Jan falls asleep Jan loses it! i G-i=e e Jan isn’t in bed and now Is screaming like a banshee Jan isn’t in bed! Jan is in bed G= “stop tantrum” i= “Jan asleep” e= “Jan not crying AND in bed” G= “bed at 7pm” i= “Jan’s tantrum” e= “Jan not in bed” Positive Loop Closes! Jack has to do something to get to the goal Jack still has to do something to end the tantrum R R Jan wants door to stay open Jan is comforted by the singing Jan wants to stay up i Jack decides to hold Jan and sing Jack decides to close door environment Jack holds Jan and begins singing Jack puts Jan in bed Jack threatens to close the door i i Jan likes to be held and sung to by daddy Jan is scared when the door is closed Jan needs to be in bed at 7pm random noise

  4. KEY CONCEPTS • Systems • Holistic • Interdependence and Mutual Influence • Hierarchy (suprasystems, systems, and subsystems) • Equifinality • Feedback and Control Loops • Equilibrium and Homeostasis • Negative Feedback (constancy loops) • Positive Feedback (variety loops) • Morphogenetic and morphostatic effects • Boundaries • Boundary Permeability • Inputs and Outputs

  5. The Environment Community Suprasystem Jarrett Family System Beth Al Jim Jack

  6. The Environment Community Suprasystem Jarrett Family System Beth Al Jim

  7. The Environment Community Suprasystem Jarrett Family System Jim Al Beth

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