We're Not The Masters And Commanders Of Our Brains
"Complacency" is a term much bandied about after accidents. It implies some
deliberate act of decision or non-decision that consciously says "It won't
happen to me" but the latest issue of Nature Neuroscience, reports the BBC,
suggests that the lack of appreciation of risk is inherent and not a result of
conscious processing.
Research carried out at University College London showed that risk assessments
were poor in four out of five people, with the brain filtering out potentially
negative future outcomes. Faced with real-life statistics, the assessment of
potential negative outcomes changed marginally.
The negative outcomes are not being consciously suppressed, any more than a
sieve consciously suppresses objects too big to pass through its mesh.
This work goes well with research that shows that the brain filters data that
it has evolved to ignore. Slow changes in the environment are filtered before
they reach the consciousness, for instance. Fast changes may not be noticed
even if we are consciously looking for them.
It doesn't feel like that but the truth is that while we may be the CEOs of our
brains, our brains are like secretaries who only tell us what they want us to
know, which is not necessarily what we need to know.
The relevance to safety is obvious. Less obvious, though, may be the need to
understand these hard-wired hazards to understanding risks.
= fm Maritime Accident Casebook = 091011
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