Proceedings of the IASTED international conference series on imaging and signal processing in health care and technology : human-computer interaction : communication, internet, and information technology : May 14-16, 2012 : Baltimore, USA : ISPHT 2012 : HCI 2012 : CIIT 2012 : IASTED symposium : 7th IASTED international conference on human-computer interaction : May 2012, Baltimore, MD.