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
Virtual Poster #30 – Information dynamic metrics track the emergence of cognitive information processing from neural circuit dynamics
By: Nicole Voges Institut de Neuroscience de la Timone, UMR 7289, Aix-Marseille Université, Marseille, France Email me Cognitive function arises from the coordinated activity of neural populations distributed over large-scale brain networks. However, it is challenging to understand how specific aspects of neural dynamics translate into operations of information processing, and, ultimately, cognitive functions. To … Continue reading Virtual Poster #30 – Information dynamic metrics track the emergence of cognitive information processing from neural circuit dynamics
Virtual Poster #27 – Complexity of intrinsic brain dynamics shaped by multiscale structural constraints
By: Mengsen Zhang, Stanford University Email me The brain is a complex, nonlinear system, exhibiting ever-evolving patterns of activities even without external inputs or tasks. Such intrinsic dynamics plays key roles in cognitive functions and psychiatric disorders. A challenge is to link the intrinsic dynamics to the underlying structure, given the nonlinearity. Here we use … Continue reading Virtual Poster #27 – Complexity of intrinsic brain dynamics shaped by multiscale structural constraints
Virtual Poster #26 – Changes across age groups in neural avalanche properties: A large-scale resting-state magnetoencephalography study
By: Marzieh Zare, Université de Montreal Email me Neuronal avalanches capture brain activities at multiple spatial and temporal scales. The scale-invariant nature of avalanches can be taken as an indication that the brain is in a critical state. Interestingly, the repeatable patterns associated with neuronal avalanches are thought to be associated with information processing. Despite … Continue reading Virtual Poster #26 – Changes across age groups in neural avalanche properties: A large-scale resting-state magnetoencephalography study
Virtual Poster #25 – Long Range Dependence Dynamics of Broadband EEG Predicts Movement
By: Maitreyee Wairagkar Postdoc Research Associate,Biomechatronics Lab,Department of Mechanical Engineering,Imperial College London Email me Brain activity is composed of both oscillatory and broadband arrhythmic components; however, neural correlates of movement are commonly characterised by narrowband oscillatory processes such as event-related desynchronisation (ERD). The complex ongoing scale-free dynamics of the arrhythmic broadband electroencephalography (EEG) remain unexplored. … Continue reading Virtual Poster #25 – Long Range Dependence Dynamics of Broadband EEG Predicts Movement
Virtual Poster #24 – Topological Phase Transitions in functional Brain Networks
By: Fernando Antônio Nóbrega Santos, Department of Anatomy and Neurosciences, Vrije University of Amsterdam, Amsterdam UMC, the Netherlands Email me Functional brain networks are often constructed by quantifying correlations between time series of activity of brain regions. Their topological structure includes nodes, edges, triangles, and even higher-dimensional objects. Topological data analysis (TDA) is the emerging … Continue reading Virtual Poster #24 – Topological Phase Transitions in functional Brain Networks