Mind, hand, instrument: drawing variants and invariants

An experimental methodology on the action of drawing based on instrumental techniques suitable to detect the duration and intensity of brain activity underlying the execution of the graphic layout and to study its cause/effect role in the creative stage. It is a difficult goal, which brings out an enthralling question on the very methods of investigation. An interesting core issue, currently under analysis in the research progression, is the reliability of those means usually employed in neurophysiology to explore and make accessible an abstract and complex cognitive process like creativity.