from h+ Magazine:
As human neural networks and electronic digital networks converge there is some debate over how to best move data from neural to digital formats.
Since the human brain is equipped with high-resolution sensory organs, there are many obvious routes for digital-to-neural input, but organic systems lack sufficient neural outputs for porting thoughts, memories, and dreams directly to digital memory.
Why transforming from neural to digital formats? The principle of reverse perception enables the transformation from mental thoughs into 3D physical objects
http://quatschtronauts.wordpress.com/2009/10/06/mental-inbox/