there was a brain imaging study published where my colleague, charles lim, a narrow scientist, put somesers in an mri machine. if any of you have had an mri to see if there was a broken bone or cancer detection, we have a special version called functional mri, wary can track the flow of blood in your brain. we put people in the scanner and we had people mentally practice their tennis serve, catch a late meth problems, or think or listen about music. you can see which regions of the brain are active by following the blood. what charles found is by people improvising or composing, you would expect for something that is that complicated, would require so mineral resources, you would expect a primary finding in his would be lots of activation in particular areas of the brain. paradoxically what he found was deactivation in the prefrontal cortex, the part of your brain that is the editor, tell you that is not good enough, inhibiting you from blurting things out. the great improvisers had turned that part of their brain off. from your intuitions as a composer, science is a step behind art, bu