Image from Wired Magazine.
[Cross-posted from Signtific Lab.]
Researchers at VU University Medical Center in Amsterdam have applied the analytic methods of graph theory to analyze the neural networks of patients suffering from dementia. Their findings reveal that brain activity networks in dementia sufferers are much more randomized and disconnected than in typical brains. "The underlying idea is that cognitive dysfunction can be illustrated by, and perhaps even explained by, a disturbed functional organization of the whole brain network", said lead researcher Willem de Haan.
Of perhaps deeper significance, this work shows the application of network analysis algorithms to the understanding of neurophysiology and mind, suggesting a similarity in functioning between computational networks and neural networks. Indeed, the research highlights the increasing feedback between computational models and neural models. As we learn more about brain structure & functioning, these understandings translate into better computational models. As computation is increasingly able to model brain systems, we come to understand their physiology more completely. The two modalities are co-evolving.
The interdependence of the two fields has been most recently illustrated with the announcement of the Blue Brain Project which aims to simulate a human brain within 10 years. This ambitious project will inevitably drive advanced research & development in imaging technologies to reveal the structural complexities of the brain which will, in turn, yield roadmaps towards designing better computational structures. This convergence of computer science and neuroscience is laying the foundation for an integrative language of brain computer interface. As the two sciences get closer and closer to each other, they will inevitably interact more directly and powerfully, as each domain adds value to the other and the barriers to integration erode.
This feedback loop between computation and cognition is ultimately bringing the power of programming to our brains and bodies. The ability to create programmatic objects capable of executing tasks on our behalf has radically altered the way we extend our functionality by dematerializing technologies into more efficient, flexible, & powerful virtual domains. This shift has brought an unprecedented ability to iterate information and construct hyper-technical objects. The sheer adaptive power of these technologies underwrites the imperative towards programming our bodies, enabling us to excercies unprecedented levels of control and augmnetation over our physical form, and further reveal the fabric of mind.