Nicholas Wade had a recent article in the NY Times asking whether it is in our nature to be helpful. He discusses new books by Michael Tomasello (Why We Cooperate?) and Frans de Waal (The Age of Empathy).
Monthly Archives: December 2009
by Robert Bond
Here is an interesting new article from PNAS about distinguishing between peer-influenced contagion and homophily in networks. This could be interesting reading for anyone thinking about collecting dynamic network data…
By Yunkyu Sohn
Seung demostrates how the connectomics approach, dense mapping of all neuro-synaptic connections in a single specimen, will eventually substitute the existing methodological means of neuroanatomical data mining, sparse sampling of neuro-synaptic pairs from many specimens, and leads to the understanding of functional properties of neurons through computational analysis.
A review article on the graph theoretical analysis of structural and functional brain connectivity data: Complex brain networks: graph theoretical analysis of structural and functional systems
By Yunkyu Sohn
Bonifazi et al. introduces the first direct evidence for the presence of pace makers (functional hubs) in the neuro-synaptic level network of Hippocampus. They developed a novel method to construct functional connectivity matrix in real time in living brain slices. Through the dynamic analysis of this network they found out that there exists role-differentiation of the neurons for the synfire activity of the overall network: High Connectivity pace maker neurons and Low Connectivity follower neurons.