PSY 309 Lecture Notes - Lecture 22: Eating Disorder, Reductionism, Environmental Factor

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23 May 2018

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Lecture note 22 PSY 308:

• Systems Theory

• an approach to integrating evidence & understanding the causes of psychological

problems involves a multitude of influences

• Reductionism

• attempts to understand problems by focusing on smaller & smaller units, viewing the

smallest unit as the true/ultimate cause

• Equifinality

• there are many routes to the same disorder (-duals pathways to an eating disorder)

• Multifinality

• the same event can lead to different outcomes

• Reciprocal Causality

• causality works in both directions

• Diathesis-Stress Model

• a diathesis is a predisposition toward developing a disorder (inherited tendency toward

depression), stress is a difficult experience or any environmental factor that can trigger

the onset of a disorder

• Risk Factors

• events/circumstances that are correlated with an increased likelihood or risk of a

disorder and potentially contribute to causing the disorder

• Premorbid History

• a pattern of behavior that precedes the onset of the disorder

• Prognosis

• a predictable course; will they get better, stay the same, relapse

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