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Session II

Session II. Michael Breakspear : Bifurcations and Multiscale Cascades in Cortical Dynamics Mitsuo Kawato : Towards Manipulative Neuroscience Based on Brain Network Interface Roger Traub : Gap Junctions and Cortical Oscillations

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Session II

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  1. Session II Michael Breakspear: Bifurcations and Multiscale Cascades in Cortical Dynamics Mitsuo Kawato: Towards Manipulative Neuroscience Based on Brain Network Interface Roger Traub: Gap Junctions and Cortical Oscillations Gustavo Deco: Competition and Cooperation Mechanisms in Neural and Cortical Dynamics: Attention, Memory and Decision-Making Multiscale interactions and neuronal mass modeling Chair: Viktor Jirsa

  2. Key Issue Given a large-scale distributed anatomical architecture composed of functionally differentiated areas, how can a spatiotemporal network dynamics arise that is capable of capturing detailed cognitive architectures and dynamics? Foci of this session • Neuronal population dynamics (local) • Functionally relevant large-scale network dynamics (global)

  3. Low-dimensional description of population dynamics Anatomical and functional architectures based on a distributed population variable (x,t) Local architectures: Can we substitute the detailed neuronal dynamics Q(t) by a lower-dimensional population variable such as a field (x,t) ? Assisi et al PRL (2005) Cortical architectures with intra- and inter-areal connections

  4. Functionally meaningful large-scale network dynamics (global) Functional architectures: Multisensory - Dhamala et al (2006) Auditory Streaming - Almonte et al. (2006)

  5. Pitch Difference Functional architecture from brain imaging data implies cognitive architecture Foreground-background separation in auditory scenes gives rise to perceptual integration (Auditory Streaming) Cognitive architectures: Multisensory - Dhamala et al (2006) Auditory Streaming - Almonte et al. Physica D (2005)

  6. Session II Michael Breakspear: Bifurcations and Multiscale Cascades in Cortical Dynamics Mitsuo Kawato: Towards Manipulative Neuroscience Based on Brain Network Interface Roger Traub: Gap Junctions and Cortical Oscillations Gustavo Deco: Competition and Cooperation Mechanisms in Neural and Cortical Dynamics: Attention, Memory and Decision-Making Multiscale interactions and neuronal mass modeling Chair: Viktor Jirsa

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