The Diathesis Stress Model (Intro Psych Tutorial #225)

www.psychexamreview.com In this video I describe the diathesis-stress model. This model suggests that development of mental illness can be explained by two main factors - a genetic predisposition (diathesis) and environment (stress). Individuals vary for both of these factors and these variations can help us to understand why some people develop a mental illness and others don't. Next I discuss how this model is an oversimplification because it ignores the potential interaction between genes and environment and how experiences may alter gene expression. This can be seen in a study by Caspi et al (2003) which found a relationship between versions of a serotonin transporter gene and depression, but only when accompanied by stressful life events. Disclaimer: This channel is for educational purposes only and is not intended as medical advice for the diagnosis or treatment of psychological disorders. Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email! Need more explanation? Get volume 1 of my Master Introductory Psychology series here: http://amzn.to/2ENc44U (Amazon affiliate link) Caspi et al (2003) - Influence of Life Stress on Depression: Moderation by a Polymorphism in the 5-HTT Gene http://sci-hub.tw/10.1126/science.108...