Imperial AI Talks

UKRI CDT AI for Healthcare and AI Network

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<p>This free event is hosted by UKRI CDT AI for Healthcare and the AI Network at Imperial College London</p><p></p><h1>The Thermodynamics of Mind
</h1><h3>Gustavo Deco 
</h3><h3>Pompeu Fabra University (Barcelona)
</h3><h3></h3><p>Finding precise signatures of different brain states is a central, unsolved question in neuroscience. The difference in brain state can be described as differences in the detailed causal interactions found in the underlying intrinsic brain dynamics. We use a thermodynamics framework to quantify the breaking of the detailed balance captured by the level of asymmetry in temporal processing, i.e. the arrow of time. We also formulate a novel whole-brain model paradigm allowing us to derive the generative underlying mechanisms for changing the arrow of time between brain regions in different conditions. We found precise, distinguishing signatures in terms of the reversibility and hierarchy of large-scale dynamics in three radically different brain states (cognition, rest, deep sleep and anaesthesia) in fMRI and electrocorticography data from human and non-human primates. Overall, this provides signatures of the breaking of detailed balance in different brain states, perhaps reflecting levels of conscious awareness.</p>

<h2>Bio:</h2><p> Gustavo Deco is an ICREA Research Professor at Pompeu Fabra University (Barcelona). He studied Physics at the National University of Rosario (Argentina) (Theoretical Atomic Physics). In 1987, he received his Ph.D. in Physics (Relativistic Atomic Collisions). In 1987, he was a post-doctoral fellow at the University of Bordeaux. From 1988 to 1990, he obtained a post-doctoral position at the Alexander von Humboldt Foundation at the University of Giessen. From 1990 to 2003, he was with the Neural Computing Section at the Siemens Corporate Research Center in Munich, where he led the Computational Neuroscience Group. In 1997, he obtained his habilitation (maximal academical degree in Germany) in Computer Science (Dr. rer. nat. habil.) at the Technical University of Munich (Neural Learning). In 2001, he earned his PhD in Psychology (Dr. phil.) (Visual Attention) from Ludwig-Maximilian-University of Munich. ??He was a lecturer at the universities of Rosario, Frankfurt, and Munich. From 1998 to 2001, he was an Associate Professor at the Technical University of Munich. Since 1999 he is an Honorary Professor at the University of Rosario, since 2001 Invited Lecturer at the Ludwig-Maximilian-University of Munich, since 2016 Associate Researcher at the Max Planck Institute for Human Cognitive and Brain Science, since 2017, Adjunct Professor of the Faculty of Medicine of Monash University and since 2019 Adjunct Professor, Faculty of Medicine, School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University.  Since 2001 he is also McDonnell-Pew Visiting Fellow of the Centre for Cognitive Neuroscience at the University of Oxford. In 2001 he was awarded the Siemens international prize &quot;Inventor of the Year&quot; for his contribution to statistical learning, models of visual perception, and fMRI-based diagnosis of neuropsychiatric diseases. </p><p>His research interests include computational neuroscience, neuropsychology, psycholinguistics, biological networks, statistical formulation of neural networks, and chaos theory. He has published 4 books, more than 373 papers in International Journals and 36 book chapters. He has 52 patents in Europe, USA, Canada, and Japan. He was awarded an “Advanced ERC” grant in 2012 and is a member of the Human Brain Project (EU Flagship).</p>

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