thank you! I may have found a book that seems to be useful (http://www.amazon.it/gp/product/3642020909/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A11IL2PNWYJU7H) but it (obv) costs too much for me. Is there anything online brain-HCI related I can use (maybe cheaper books etc.)?
EDIT: how can i link BCI to HCI? are they directly related?