R. A Ascott 1999 Reframing Consciousness: Art, mind and technology Intellect Books UK
S HameroffR Penrose 2013 Consciousness in the Universe: A review of the ‘Orch OR’ theory http://www.sciencedirect.com/science/article/pii/S1 571064513001188 1 November 2014
S Hameroff 2013 Interviewed by Nikola Danaylov on Singularity 1 on 1, 12 September http://www.youtube.com/watch?v=YpUVot-4GPM 1 August 2014
J. A Tuszynski 2006 The Emerging Physics of Consciousness Springer Germany