Workshop on "Energy and entropy measures in neural systems" - EITN - Paris - 5-6th may 2021

[Geo-Sci-Info]

OFFICIAL WEBSITE

"Energy and entropy concepts to characterize and understand brain activity"
Organizers: Alain Destexhe, Jennifer Goldman, Mavi Sanchez-Vives, Pier Stanislao Paolucci, Chiara DeLuca, Cristiano Capone, Trang-Anh Nghiem

Abstract: Brain circuits in vivo or in vitro display a wide variety of activity states, and they may also respond to external inputs differently in each state. The goal of this workshop is to evaluate and compare tools to understand both the activity state, and its responsiveness, based on energy and entropy concepts commonly used in physics. We will review different ways of defining relevant measures of energy and entropy, and how they apply to analyze brain activity, including brain states and cognitive tasks, and what useful information can be extracted to better understand the system. We will also evaluate the opportunity of writing a collaborative paper that reviews the different techniques and their usefulness.

List of confirmed speakers:

• Pierre Baudot (U Marseille)
• Alessandra Camassa (U Barcelona)
• Cristiano Capone (INFN, Rome)
• Chiara Cirelli (U Wisconsin)
• Chiara de Luca (INFN, Rome)
• Athena Demertzi (Universite de Liege)
• Alain Destexhe (CNRS)
• Adrienne Fairhall (U Washington)
• Karl Friston (UCL)
• Jennifer Goldman (CNRS)
• Viktor Jirsa (AMU)
• Daniele Marinazzo (Ghent U)
• Olivier Marre (INSERM)
• Maurizio Mattia (ISN Roma)
• Thierry Mora (ENS)
• Trang-Anh Nghiem (ENS)
• Pier-Stanislao Paolucci (U Roma)
• Antonio Pazienti (ISN Roma)
• Mavi Sanchez-Vives (U Barcelona)
• Simone Sarasso (U Milan)
• Elad Schneidman (Weizmann Inst)

Updated program:

Day 1 - May 5

Session 1: Theoretical aspects of energy and entropy I

• 13h: general intro (Alain) and tribute to Paolo Del Giudice
• 13h15-13h40: Alain Destexhe (CNRS, Paris-Saclay U): "Energy and Entropy-based methods to characterize brain states" VIDEO
• 13h40-14h05: Chiara de Luca (INFN, Rome): "Deep-Sleep Memory Density-based-clustering: Theoretical Framework and Energetic/Entropic Effects on Awake Activity"
• 14h05-14h30: Thierry Mora (ENS, Paris): "Sensory adaptation and entropy production"
• 14h30-14h40: general discussion
• 14h40-15h coffee break

Session 2: Applications to neural data I

• 15h-15h25: Simone Sarasso (U Milan): "Assessing brain states through complexity: converging empirical evidence"
• 15h25-15h50: Athena Demetrzi (U Liege): "Cerebral configuration in states of reduced reportability"
• 15h50-16h15: Mavi Sanchez-Vives (IDIBAPS, Barcelona): "Cellular and synaptic contributions to cortical complexity in different brain states"
• 16h15-16h40: Chiara Cirelli (U Wisconsin): "Sleep and synaptic down-selection" VIDEO
• 16h40-16h50: general discussion
• 16h50-17h10 coffee break

Session 3: Theoretical aspects of energy and entropy II

• 17h10-17h35: Daniele Marinazzo (Ghent U): "Beyond pairwise interactions: expanding the transfer entropy and the mutual information" VIDEO
• 17h35-18h: Trang-Anh Nghiem (ENS, Paris): "Unveiling the correlation structure supporting brain states and neural codes with maximum entropy models" VIDEO
• 18h-18h25: Jennifer Goldman (CNRS, Paris-Saclay U): "A scale-integrated approach to brain states; from single neuron biophysics to macroscopic neural dynamics" VIDEO
• 18h30-18h40: general discussion

DAY 2 - May 6

Session 4: Theoretical aspects of energy and entropy III

• 13h-13h25: Elad Schneidman (Weizmann Inst): "Learning the code of large neural populations by sparse nonlinear random projections"
• 13h25-13h50: Pierre Baudot (AMU Marseille): "Topological information and higher order statistical structures: mathematical foundations of information and deep learning" VIDEO
• 13h50-14h15: Maurizio Mattia & Antonio Pazienti (ISN Roma): "Insights in the transition from slow-wave activity to wakefulness using an entropy-based index" VIDEO
• 14h15-14h25: general discussion
  14h25-14h45 coffee break

Session 5: Applications to neural data II

• 14h45-15h10: Olivier Marre (INSERM, Paris): "Maximum entropy models in the retina"
• 15h10-15h35: Cristiano Capone (INFN, Rome): "Simulations approaching data: Cortical slow waves in inferred models of the whole hemisphere of mouse" VIDEO
• 15h35-16h: Alessandra Camassa (IDIBAPS, Barcelona): "Energy-based hierarchical clustering of cortical slow waves in multi electrode recordings" VIDEO
• 16h-16h10: general discussion
• 16h10-16h30 coffee break

Session 6: Theoretical aspects of energy and entropy IV

• 16h30-16h55: Karl Friston (UCL, London): "Deep inference" VIDEO
• 16h55-17h20: Adrienne Fairhall (U Washington)
• 17h20-17h45: Viktor Jirsa (AMU, Marseille): "Entropy, symmetry & dynamics" VIDEO
  17h45-18h30: general discussion and next steps