Author: Equipe éditoriale

By Orit Peleg (Boulder, CO). Fireflies offer a unique and rare glimpse into animal communication. Their signal comprises a species- specific on/off light pattern repeated periodically, used by individual fireflies to advertise themselves to potential mates. Detecting individuals becomes increasingly challenging at high densities of fireflies. In this talk, I will explore how fireflies approach … Continue reading Talk 2022#Day2-7 – Orit PELEG – Living Orbs of Light: The Physics of Firefly Communication

By Simona Olmi (Sesto Fiorentino, Italy). I will first give a brief overview of the next generation neural mass models, which represent a complete new perspective for the development of exact mean field models of heterogeneous spiking networks [1]. Then I will report recent results on the application of this formalism to reproduce relevant phenomena … Continue reading Talk 2022#Day2-6 – Simona OLMI – Next Generation Neural Mass Models

By Bradley Voytek (La Jolla, CA). Perception, action, and cognition depend upon coordinated neural activity. This coordination operates within noisy, distributed neural networks potentially poised on the edge of criticality. These networks change with development, aging, and disease. Extensive field potential and EEG research shows that neural oscillations interact with neuronal spiking, which has been … Continue reading Talk 2022#Day2-5 – Bradley VOYTEK – A Non-Critical Perspective on Criticality

By Samir Suweis (Padova, Italy). The critical brain hypothesis has emerged as an attractive framework to understand neuronal activity, but it is still widely debated. In this talk, I will first present data from a multi-electrodes array in the rat’s cortex and show that power-law neuronal avalanches satisfying the crackling-noise relation coexist with spatial correlations … Continue reading Talk 2022#Day2-4 – Samir SUWEIS – Disentangling the Critical Signatures of Neural Activity

By Woodrow Shew (Fayetteville, AR). The criticality hypothesis offers an explanation of the observed complexity of brain dynamics and is important because of potential computational advantages near criticality. However, in the awake state, when cortex most needs computation, experimental evidence for criticality has been inconsistent, especially when considering spikes of many single neurons measured with … Continue reading Talk 2022#Day2-2 – Woodrow SHEW – Low Dimensional Criticality Embedded in High Dimensional Awake Brain Dynamics

By Dietmar Plenz (Bethesda, MD). Neurons in cortex synchronize their spiking in response to local and distant inputs. These synchronized assemblies are fundamental to cortex function, yet basic dynamical aspects about their size and duration are largely unknown. Using 2-photon imaging of neurons in superficial cortex of awake mice, we show that synchronized assemblies organize … Continue reading Talk 2022#Day2-1 – Dietmar PLENZ – Avalanche Scaling in the Synchronization of Cortical Cell Assemblies

By Dante Chialvo (Buenos Aires, Argentina). It is well known that the behaviour of the correlation functions changes dramatically near criticality. Less clear is how such hallmark properties can be empirically estimated from neural recordings. In this talk I will review old and recent attempts to study this issue. https://videopress.com/v/4IgnXMni?resizeToParent=true&cover=true&preloadContent=metadata&useAverageColor=true

By Miguel Muñoz (Granada, Spain). Advancing our knowledge of how the brain processes information remains a key challenge in neuroscience. Importantly, the brain, even at rest, is in an energetically costly state of ongoing activity, whose origin and meaning still need to be fully elucidated. An inspiring hypothesis suggests that such activity is generated by … Continue reading Talk 2022#Day1-6 – Miguel MUÑOZ – Quasi-Universal Scaling in Mouse-Brain Neuronal Activity Stems from Edge-Of-Instability Critical Dynamics

By Karin Dahmen (Urbana-Champaign, IL). The tasks of neural computation are remarkably diverse. To function optimally, neuronal networks have been hypothesized to operate near a nonequilibrium critical point. We use the framework of nonequilibrium phase transitions to describe the statistics and the dynamics of neuron avalanches in the brain. Measured scaling exponents, exponent relations, and … Continue reading Talk 2022#Day1-5 – Karin DAHMEN – Dynamics of Neuronal Avalanches

By Moritz Helias (Jülich, Germany). Criticality is deeply related to optimal computational capacity. The lack of a renormalized theory of critical brain dynamics, however, so far limits insights into this form of biological information processing to mean- field results. These methods neglect a key feature of critical systems: the interaction between degrees of freedom across … Continue reading Talk 2022#Day1-4 – Moritz HELIAS – Gell-Mann–Low Criticality in Neural Networks