The ecological niche metaphor: a useful framework for understanding the emergence of mental disorders?

This paper explores one of Hacking’s less developed yet increasingly influential frameworks: the ecological niche metaphor. I ask if this framework can serve as an effective analytical tool to understand how specific social and cultural environments are conducive to the emergence and “flourishing” of certain mental disorders? Despite its increasing application to mental disorders like attention deficit hyperactivity disorder (ADHD) and social anxiety disorder (SAD), there are several important methodological shortcomings with this framework. Most notably, the framework provides little guidance for causal reasoning. This is a serious problem given that the framework has been used to support ontological claims about the nature of these mental illnesses. I argue that the framework can support stronger causal analysis, but only if it is augmented to facilitate clearer explanatory reasoning. I propose Lauren Ross’ approach to “Social Structural Explanation” as a compelling framing to integrate into the framework for future use. Augmentation with Ross’ causal model enables the framework to clarify how the vectors have causal significance and provides a method by which causal claims can be assessed. I demonstrate how this augmentation of the ecological niche metaphor can explain the sudden rise of Western anorexia nervosa in Hong Kong. In doing so, I demonstrate that the ecological niche metaphor does have significant potential as an analytical tool to examine the emergence of certain mental illnesses – both transient and enduring.