show me your prefrontal cortex
Tuesday, March 6th, 2007
Together with collegues from London and Tokyo neuroscientist John-Dylan Haynes did an experiment (however up to now only with 21 test persons as it seems), where a person had to choose wether he/she wanted either to add or to substract two numbers. And even before the test persons saw the numbers and before they started to compute it was possible – by using a MRI brain scan – to tell with a 70% chance, what kind of desicion the person was going to make, or in other words: using the MRI the scientists could “read the mind” of the test persons (with a 70% chance). Freely chosen decisions are usually happening in the prefrontal cortex.