Friday, March 16, 2012
Neuroscience: More a Streetlight Than a Candle in the Dark?
In part, this backlash against the brain results from the conviction that today’s technologies for investigating it have been hyped. The existence of diagnostic hardware such as fMRI and PET scanners, which let you peek inside brains while they are still alive and thinking, has encouraged some neuroscientists to think they can find the locus of moral responsibility, the seat of love and all manner of things in the gaudy images produced by brain scans. But although our mental lives depend on the brain, it doesn’t necessarily follow that our behaviour is best understood by looking inside it. It’s like the old joke about a drunk who drops his car keys at night and walks down the road to look for them under a distant streetlight—not because that’s where they’re likely to be, but because it’s where he can see. more