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JEFFREY NORDSTROM

Folk Neuroscience/Pseudoneuroscience.

3/21/2013

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I recently read an article at The Guardian that seemed to back up a few ideas I'd read about on weblogs and heard in podcasts. In the article, titled "Our brains, and how they're not as simple as we think," Vaughan Bell describes the prevalence of neuroscience lingo in our everyday perceptions of ourselves. Bell writes,
The popular interest in the brain means that we increasingly have a "folk neuroscience" that is strongly linked to personal identity and subjective experience. Like folk psychology it is not necessarily very precise, and sometimes wildly inaccurate, but it allows us to use neuroscience in everyday language in a way that wasn't previously credible for non-specialists.
Carol Tavris calles this "pseudoneuroscience." Pseudoneuroscience acts like a means of discourse where we make reference to neuroscience to back up our perceptions of ourselves. Naturally, we do this backwards. Unlike scientific discourse, pseudoneuroscience tends to select a conclusion and seek a semiscientific means to back it up. It's practically a type of apologetics, where we see a conclusion and then selectively choose the references that will fit our preconceived conclusions.
I'm not entirely certain about which term I like best. "Folk neuroscience" might fit the concept better on a common person-to-person level.

I get really excited about neuroscientific findings, especially when they're reported from credible sources. I often can't help but apply them to my own life. But take a look at the list of examples at the end of the Guardian article. Haven't we all grabbed onto one of these little folk neuroscience myths at one time or another?
■ The "left-brain" is rational, the "right-brain" is creative
The hemispheres have different specialisations (the left usually has key language areas, for example) but there is no clear rational-creative split and you need both hemispheres to be successful at either. You can no more do right-brain thinking than you can do rear-brain thinking.

■ Dopamine is a pleasure chemical
Dopamine has many functions in the brain, from supporting concentration to regulating the production of breast milk. Even in its most closely associated functioning it is usually considered to be involved in motivation (wanting) rather than the feeling of pleasure itself.

■ Low serotonin causes depression
A concept almost entirely promoted by pharmaceutical companies in the 1980s and 90s to sell serotonin-enhancing drugs like Prozac. No consistent evidence for it.

■ Video games, TV violence, porn or any other social spectre of the moment "rewires the brain"
Everything "rewires the brain" as the brain works by making and remaking connections. This is often used in a contradictory fashion to suggest that the brain is both particularly susceptible to change but once changed, can't change back.

■ We have no control over our brain but we can control our mind
The mind and the brain are the same thing described in different ways and they make us who we are. Trying to suggest one causes the other is like saying wetness causes water.
People make medical and social decisions based on these myths, decisions for themselves, their children, their friends and family. And these ideas are myths. 

But how can you work a myth out of the culture? I guess you can't. That's how myths work. Sigh.
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