I thought of the word 'multi-tasker' but is there a better word which can express focussing on multiple tasks with equal efficiency? For instance, it is said that Leonardo Da Vinci, a polymath, was able to write and draw at the same time.
There must be a word, however it doesn't make sense. A person, as many studies and research suggest, is only capable to concentrate on one task at a time.
I found some interesting information here: http://en.wikipedia.org/wiki/Human_multitasking