Former mineral resources minister Ngoako Ramatlhodi’s offer to be subjected to a lie detector test raises some interesting possibilities.
The latest lie detectors use MRI technology, known as function fMRI machines, and show moving brain images in the most remarkable clarity. They can distinguish lies, which have to be invented and made to fit a fictional narrative, from simple memory recall. The two functions are performed in totally different areas of the brain. It is indeed fascinating to see the saying “oh what tangled webs we weave when first we practice to deceive” played out in glorious technicolor...
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