Saturday, May 19, 2012

Essentialism in Psychology - Bruce Hood

"What would I do with a million dollar Chair? Well, my big thing is essentialism. Its origins probably can be traced to the notion of ideal forms, which is a platonic idea. I discovered essentialism basically by reading Susan Gelman's work, and essentialism has an experimental tradition, not that old by the way, in naïve biology. The way that children reason about the world, there's a lot of good evidence to suggest that there are domains of knowledge: physical, reasoning about the physical world; reasoning about the living world, the biological one; and reasoning about the psychological world. Those three domains are the physics, the biology and the psychology, and are deemed to cover the majority of what we do when we're thinking about concepts.

In the biological world, people like Gelman have argued that children infer an invisible dimension. When they're making categorical decisions about why dogs are different from cats, for example, they go over and beyond the outward appearances, and infer that there must be some internal property that makes a dog a dog. Irrespective of changing its outward appearance or if you raise it with a litter of kittens, it will still turn out and grow up into a dog. So they kind of understand there's something over and beyond the physical aspect of it. Well, there is, it's DNA, but no four year old knows explicitly about DNA. But they do have this intuition that there is this essential property. Essentialism in the research field, in developmental psychology, started off in biology. But I was interested in essentialism basically almost contaminating to different domains for objects, the way that we treat objects as irreplaceable. This is the issue of authenticity. The authenticity of objects is starting to get into the boundary of what, of an essential property, makes something irreplaceable."


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