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Muhua Zheng – Geometric renormalization unravels self-similarity of the multiscale human connectome (spotlight talk)

by Muhua Zheng (University of Barcelona). Structural connectivity in the brain is typically studied by reducing its observation to a single spatial resolution. However, the brain possesses a rich architecture organized over multiple scales linked to one another. We explored the multiscale organization of human connectomes using datasets of healthy subjects reconstructed at five different … Continue reading Muhua Zheng – Geometric renormalization unravels self-similarity of the multiscale human connectome (spotlight talk)

Benedetta Mariani – Brain criticality beyond resting state neuronal avalanches (spotlight talk)

by Benedetta Mariani (University of Padova, Padova Neuroscience Center). The critical brain hypothesis has been extensively studied since the first experimental signature [1], because criticality optimizes important quantities for information processing. However, the hypothesis remains debated. On the one hand, the actual foundations of the hypothesis – the self-organization process and how it manifests during … Continue reading Benedetta Mariani – Brain criticality beyond resting state neuronal avalanches (spotlight talk)

Joel Hochstetter – Avalanches and the edge-of-chaos in neuromorphic nanowire networks (spotlight talk)

by Joel Hochstetter (University of Sidney). The brain's efficient information processing ability has inspired the development of neuromorphic systems constructed from nanoscale material structures exhibiting ``brain-like'' responses to electrical stimulation. Here we report on one such system, neuromorphic nanowire networks. Bio-inspired self-assembly of these nanowire networks confers a complex neural network-like structure, while nanowire-nanowire junctions … Continue reading Joel Hochstetter – Avalanches and the edge-of-chaos in neuromorphic nanowire networks (spotlight talk)

Daniel Korchinski – Criticality without time-scale separation between avalanche initiation and spreading (spotlight talk)

by Daniel Korchinski (Complexity Science Group, University of Calgary, Stewart Blusson Quantum Matter Institute, University of British Columbia). Spreading processes on networks are ubiquitous in both human-made and natural systems. Understanding their behavior is of broad interest; from the control of epidemics to understanding brain dynamics. While in some cases there exists a clear separation … Continue reading Daniel Korchinski – Criticality without time-scale separation between avalanche initiation and spreading (spotlight talk)

Kanika Bansal – Cognitive connotations of neural avalanches in human brain dynamics (spotlight talk)

by Kanika Bansal (CCDC US Army Research Laboratory & Columbia University, New York, NY, USA). Analyses of neural avalanches, in combination with other methods rooted in complex systems theory, provide support for the brain criticality hypothesis, however, it is still unclear how the criticality framework would account for the omnipresent cognitive variability, across individuals and … Continue reading Kanika Bansal – Cognitive connotations of neural avalanches in human brain dynamics (spotlight talk)

Virtual Poster #37 – Diffuse neural coupling mediates complex network dynamics through the formation of quasi-critical brain states

By: Eli Muller Email me The biological mechanisms that allow the brain to balance flexibility and integration remain poorly understood. A potential solution to this mystery may lie in a unique aspect of neurobiology, which is that numerous brain systems contain diffuse synaptic connectivity. In this manuscript, we demonstrate that increasing diffuse cortical coupling within … Continue reading Virtual Poster #37 – Diffuse neural coupling mediates complex network dynamics through the formation of quasi-critical brain states

Virtual Poster #36 – Heavy-tailed synaptic weight distributions support critical dynamics

By: Lukasz Kusmierz, RIKEN Center for Brain Science Email me We propose an analytically tractable neural connectivity model with power-law distributed synaptic strengths. When threshold neurons with biologically plausible number of incoming connections are considered, our model features a continuous transition to chaos and can reproduce biologically relevant low activity levels and scale-free avalanches. In … Continue reading Virtual Poster #36 – Heavy-tailed synaptic weight distributions support critical dynamics

Virtual Poster #35 – Critical bistability in human brain dynamics

By: Sheng H. Wang J Matias Palva LabHiLife, University of Helsinki, FinlandNBE, Aalto University, Finland Email me Neuronal activity exhibits power-law dynamics throughout the scales of the nervous system. This has been thought to reflect conventional brain criticality, i.e., the brains operating near a continuous second-order phase transition between disorder and order. However, when neuronal … Continue reading Virtual Poster #35 – Critical bistability in human brain dynamics

Virtual Poster #34 – Modular co-organization of functional connectivity and scale-free dynamics in the human brain

By: Alexander Zhigalov, School of Psychology, University of Birmingham, UK Email me Scale-free neuronal dynamics and interareal correlations are emergent characteristics of spontaneous brain activity. How such dynamics and the anatomical patterns of neuronal connectivity are mutually related in brain networks has, however, remained unclear. We addressed this relationship by quantifying the network colocalization of … Continue reading Virtual Poster #34 – Modular co-organization of functional connectivity and scale-free dynamics in the human brain

Virtual Poster #32 – Information dynamics in neuromorphic nanowire networks

By: Ruomin Zhu, School of Physics, the University of Sydney Email me  The rise of neuromorphic technologies brings artificial intelligence into a new regime. Not only because these systems respond to electrical stimuli in a way similar to biological synapses, but also because they exhibit memory and brain-like dynamics such as avalanches that cannot be … Continue reading Virtual Poster #32 – Information dynamics in neuromorphic nanowire networks