October – A step closer to mapping the rodent brain
July – Blue Brain co-develops COVID-19 Diagnostic Implementation Simulator
July – Blue Brain Nexus Forge: Building and using Knowledge Graphs made easy
May – EPFL and ETH Zurich deliver Academic Resources platform for COVID-19
February – Blue Brain enable next generation brain simulations with performance modelling
January – Neuron_Reduce – a brand new tool to simplify complex neuron models.
Blue Brain collaboration with the Hebrew University of Jerusalem.
August – Blue Brain finds the secret to how neurons in the mouse neocortex form billions of synaptic connections
August – Brain finds order amidst chaos
August – Blue Brain ion channel study beckons first whole-brain simulation
July – Blue Brain builds the first next-generation models of thalamocortical neurons
May – Second NM2 Conference Concluded
March – Blue Brain solves a century-old neuroscience problem
November – Blue Brain Project releases first-ever digital 3D brain cell atlas
The first digital 3D atlas of every cell in the mouse brain provides neuroscientists with previously unavailable information on major cell types, numbers and positions in all 737 brain regions – which will potentially accelerate progress in brain science massively.
In the Autumn of 2018, Blue Brain attended and hosted several outreach events. These included the Cité des Métiers in Geneva where Blue Brain scientists and engineers met STEM students from the Geneva region. During ‘Planète Santé Live’ also in Geneva, thousands visited the Blue Brain stand to learn more about the Project.
At the Campus Biotech, the Project welcomed a delegation of primary and secondary school heads and Neurology students from Slovenia and, The Life Lab Foundation who bought 56 students with a strong interest in Science, from India.
August – The Blue Brain Portal
– a knowledge space for simulation neuroscience is launched as a public resource
July – Blue Brain project deploys HPE supercomputer for digital reconstruction and simulations of the mammalian brain to advance the understanding of the brain
Frontiers hosted its second Data Services Workshop in Brussels on April 24 with this year’s workshop focusing on the application of open research data to support sustainable health initiatives. Drawing lessons from recent successes in the use of big data and artificial intelligence in data-intensive health research, it aimed to discuss policy challenges and actions necessary in Europe to unleash the full potential of open research data in health for the benefit of society.As part of the ‘cutting-edge technologies and services for data-intensive health research’ session, Samuel presented the Blue Brain Nexus to over 130 attendees from all over Europe (including policymakers, researchers, academics, patient advocates, tech & pharma companies, universities, funders and libraries).
Credit – Samuel Kerrien presenting in Brussels ©️Simon Pugh Photography
January – Blue Brain Nexus: an open-source knowledge graph for data-driven science
December – Simulating Biophysical Principles of Functional Synaptic Plasticity in the Neocortex – Blue Brain’s INCITE grant renewed for 2018
In December 2017, Blue Brain’s INCITE grant is renewed for 2018 to provide a further 160 million core hours at the Argonne National Laboratory. INCITE supports computationally intensive, large-scale research projects with large amounts of dedicated time on supercomputers at DOE’s Leadership Computing Facilities. In 2017, INCITE awarded the Blue Brain with 100 million core hours to simulate biophysical synaptic plasticity in reconstructions of the neocortical microcircuit to discover their synergistic functional principles.
July – Blue Brain Project launches three-day conference to kick-start neuromodulation research – NM2
Leading experts from around the world presented and took part in panel discussions across the three days. Additionally, the NM2 Conference provided a unique platform for students and junior researchers to interact with leaders in the field to collectively take part in shaping the future course of neuromodulatory research.
June – Blue Brain Team Discovers a Multi-Dimensional Universe in Brain Networks
This research, published in Frontiers in Computational Neuroscience, has significant implications for our understanding of the brain.
To date the paper has been viewed over 285,00 times.
Two more important papers were also published in June. In a paper published in Cerebral Cortex , we investigated the role of morphological diversity within and across neuronal types on emergent connectivity in a model of neocortical microcircuitry. Our investigation found that the average overlap between the dendritic and axonal arbors of different types of neurons determines neuron-type specific patterns of distance-dependent connectivity, severely constraining the space of possible connectomes. Reimann, M.W., Horlemann, A.-L., Ramaswamy, S., Muller, E.B., and Markram, H. (2017). Morphological Diversity Strongly Constrains Synaptic Connectivity and Plasticity. Cereb.Cortex 27, 4570–4585. DOI: 10.1093/cercor/bhx150
In the second paper published in Nature Neuroscience, the group of Idan Segev of the Hebrew University of Jerusalem in collaboration with the Cells & Circuits team in the Simulation Neuroscience Division of the Blue Brain, and Tel Aviv University identified a rich cell-type-specific network topology in neocortical microcircuitry. The systematic approach presented in the paper has enabled interpretation of microconnectomics ‘big data’, and provided several experimentally testable predictions. Gal, E., London, M., Globerson, A., Ramaswamy, S., Reimann, M.W., Muller, E., Markram, H., and Segev, I. (2017). Rich cell-type-specific network topology in neocortical microcircuitry. Nat. Neurosci. 20, 1004–1013.
November – The Project Management Office function is launched under the supervision of Adriana Salvatore, Director of Operations
June – Blue Brain releases Open Source Software providing model parameter optimization for neuroscientists – Blue Brain Python Optimization Library (BluePyOpt)
The Blue Brain Project releases the Blue Brain Python Optimization Library (BluePyOpt) – an extensible open source framework for data-driven model parameter optimization that wraps and standardizes several existing open-source tools. The library includes methods for setting up small- and large-scale optimizations on a broad range of compute platforms – from laptops to large cloud-based compute infrastructures.
Van Geit, W., Gevaert, M., Chindemi, G., Rössert, C., Courcol, J.-D., Muller, E.B., Schürmann, F., Segev, I., and Markram, H. (2016). BluePyOpt: Leveraging Open Source Software and Cloud Infrastructure to Optimise Model Parameters in Neuroscience. Front Neuroinform 10.DOI: 10.3389/fninf.2016.00017
March – The Allen Institute for Brain Science collaborates with the Blue Brain Project to model neurons from mouse visual cortex
On March 3, the US-based Allen Institute of Brain Science released a set of 40 computer models of neurons from the mouse visual cortex, created using tools developed by the Blue Brain Project. Using Blue Brain technology, the researchers were able to reproduce the physiology and electrical activity of the neurons with an extremely high level of detail. For further details click here.
March – Blue Brain wins major award of supercomputing time from DOE
A Blue Brain team, led by Eilif Muller, won a major award of supercomputing time, from the US Department of Energy’s prestigious Incite Leadership Computing Program. The award gives the team an unprecedented opportunity to simulate synaptic plasticity—the process through which brain activity shapes synaptic connections. The study – which will build on Blue Brain’s recently published reconstruction of neural microcircuitry – focused on the impact of plasticity on the detailed organization and functioning of neural networks. The results provided insights, not just to neuroscientists but also to technologists, seeking to implement brain-like learning mechanisms in software and hardware.
December – The Neocortical Microcircuit collaboration portal
October – Algorithm to predict connectivity in neural microcircuits
Blue Brain published a paper describing a mathematical algorithm that predicts the location of nearly 40 million synapses formed between the neurons in a small block of brain tissue about 100’000 times larger than has ever been analyzed with electron microscopy.
The algorithm uses millions of times less experimental data than would normally be needed using purely experimental methods. The algorithm was developed as part of the Blue Brain Project’s mission to digitally reconstruct the biological detail of the mouse brain and is a companion paper to the team’s paper on the Reconstruction and Simulation of Neocortical Microcircuitry.
Reimann, E.Muller, S.Ramaswamy, H.Markram: An Algorithm to Predict the Connectome of Neural Microcircuits. 2015. Frontiers in Neural Circuits 9 2015, 28.
October – Major Milestone achieved – Digital reconstruction of neocortical microcircuitry
Blue Brain reaches a major milestone with the publication of a first draft of the digital reconstruction of neocortical microcircuitry (Markram et al, 2015). The study confirmed the feasibility of building and simulating a digital copy of a part of the brain and demonstrated that multidisciplinary Big Science in the field of neuroscience yields favorable results (82 scientists contributed to the study).
The paper, which appeared in the journal Cell, represents the most complete description of any neural microcircuit to date. It provides a complete digital map of all the cells and synapses in a block of neural tissue and describes simulation experiments replicating a range of previous in vivo experiments. In other words, our digital copy of a part of the brain behaves like a real part of the brain.
Most significantly, this study advances the case for simulation as a useful new method in neuroscience. It proves that we understand the basic properties of the components and interconnections of the brain well enough to be able to reconstruct and simulate certain physiological functions.
Markram et al., Reconstruction and Simulation of Neocortical Microcircuitry. Cell 163, 2015, 456-492.
August – Blue Brain Team Selected to Participate in Argonne Early Science Programme
The Blue Brain Project’s High Performance Computing Team (HPC) has been selected by the Argonne Leadership Computing Facility (ALCF) to participate in the two-year Theta Early Science Program.
This program will target the porting and optimization at large scale of our CoreNeuron scientific application on ALCF next leadership-class supercomputer prototype, Theta.
This opportunity will allow the HPC team developers to collaborate with Intel, Cray and ALCF HPC specialists to drive the development of CoreNeuron to support four challenging scientific use cases: (a) The analysis of the electrical activity of the mouse brain Somatosensory Cortex, (b) The study of Synaptic Plasticity phenomenon in a mouse brain, (c) The building and simulations of a full mouse brain model and (d) The study of the activity and plasticity of a mouse brain model when embedded into a simulated body interacting within its environment.
Read more – https://www.alcf.anl.gov/news/alcf-selects-projects-theta-early-science-program
April – Launch of Sino-Swiss Laboratory for Data Intensive Neuroscience
EPFL and the Chinese Academy of Sciences will collaborate on Neuroinformatics platforms, Data and Knowledge integration, algorithms for Brain Reconstruction and Brain Atlas platforms.
In June, the BBP replaces its previous supercomputer (the BlueGene/P) with a BlueGene/Q machine (Blue Brain 4) hosted at the Swiss National Computing Centre (CSCS) in Lugano. The new machine offers higher performance and expanded memory.
In the same month, Blue Brain, IBM Research and ETH Zürich announce a collaboration to develop a new hybrid memory strategy for supercomputers, matching the heavy memory requirements for reconstructions of large volumes of neural tissue (brain regions, whole brains).
The Blue Brain Project completes validated digital reconstructions of neural microcircuitry in the brain of young rats. Work begins on a major paper, presenting the reconstruction, and on online resources, making the results available to the broader community.
The Blue Brain Project is officially granted the status of a Swiss National Research Infrastructure, funded by the ETH Board.
Neural simulations hint at the origin of brain waves
For almost a century, scientists have been studying brain waves to learn about mental health and the way we think. Yet the way billions of interconnected neurons work together to produce brain waves remains unknown. Scientists from Blue Brain and the Allen Institute for Brain Science showed in a paper published in journal Neuron how a complex computer model is providing a new tool to solve the mystery.
M.W. Reimann, C.A.Anastassiou, R.Perin, S.L.Hill, H. Markram, C. Koch: A biophysically detailed model of neocortical local field potentials predicts the critical role of active membrane currents. Neuron, 79(2), 375-390, 2013. DOI: 0.1016/j.neuron.2013.05.023
Two important Blue Brain publications describe the use of Blue Brain Project models to identify and characterize “neuronal clusters” in neural microcircuits, and to predict local field potentials.
R.Perin, M.Telefont, H.Markram: Computing the size and number of neuronal clusters in local circuits, Front Neuroanat. 2013;7:1. Epub 2013 Feb 19. https://doi.org/10.3389/fnana.2013.00001
S.Druckmann, S.Hill, F.Schürmann, H.Markram, I.Segev: A Hierarchical Structure of Cortical Interneuron Electrical Diversity Revealed by Automated Statistical Analysis, Cerebral Cortex, (2012),
In a landmark paper published in PNAS, the EPFL’s Blue Brain Project (BBP) has identified key principles that determine synapse-scale connectivity by virtually reconstructing a cortical microcircuit and comparing it to a mammalian sample. These principles now make it possible to predict the locations of synapses in the neocortex.
S.L.Hill, Y.Wang, I.Riachi, F.Schürmann, H.Markram: Statistical connectivity provides a sufficient foundation for specific functional connectivity in neocortical neural microcircuits, PNAS, Published online before print September 18, 2012. https://doi.org/10.1073/pnas.1202128109Watch the video
At the Neuroscience 2012 conference in New Orleans, the Blue Brain Project presented more than 20 posters, describing a first reconstruction of the rat cortical column.
This enormous poster series displayed the building of the cortical column model from the bottom up – including the reconstruction of the neuron types to attain their morphologies (called the M-types), the establishment of their electrical patterns (called the E-types), the combination of M- and E- types to get the ME-types, the placement of neurons, the connectivity and interaction between neurons and how all of this goes in to produce the unifying Blue Brain cortical column model.
Click here to watch the series of short videos – The Unifying Cortical Column Model Poster Series.
The Blue Brain Project hires new engineers and scientists. In November, the enlarged team moves to new office space in the EPFL Innovation Park. The Blue Brain Project publishes several high impact papers describing new methods to generate cell models and in silico studies of virtual brain tissue.
“In silico” experimentation is in full swing, testing the behaviour of Blue Brain Project models against results from other research groups. The results provide new insights into the principles underlying the construction of neocortical microcircuitry.
In January, Prof. Henry Markram presents the Blue Brain Project to the Davos forum.
In October, Blue Brain paper – A Novel Multiple Objective Optimization Framework for Constraining Conductance-Based Neuron Models by Experimental Data was published in Frontiers in Neuroscience, Vol. 1, Issue 1, 2007.
November 26, marks the end of the first phase of the Project, which announces the completion of an initial model of the rat cortical column.
In February, the project takes shape. An article in Nature Reviews Neuroscience by Prof. Henry Markram describes the project’s goals and methods.
During the summer, the BBP team generates its first model of a cortical column, using a simplified neuron model.
In June, the EPFL and IBM sign an agreement to launch the Blue Brain Project (BBP). The agreement provides for the installation of a BlueGene supercomputer on the EPFL campus.