Brain cellsThe human brain contains an estimated 100 billion nerve cells (blue), as well as support cells known as glia (red and green). Neuroscientists are striving to understand how these cells are born, grow, connect and work together to give rise to our thoughts and actions. (Credit: NICHD/J. Cohen)

Neuroscience seeks to understand the most complex biological structure in the Universe, with an estimated 100 billion brain cells, or neurons, and trillions of connections between them. To make sense of the brain’s complexity, neuroscientists draw on expertise from numerous fields, including biology, physics and computer science, neurology, psychology and even philosophy. Some of the main questions they are trying to answer are: How does the brain, in which networks of cells course with electrical and chemical signals, give rise to the mind? How does the brain compute? How do we learn and remember (See "Memory")? What is the biological basis of language (See "Language")?  And what causes psychiatric and neurological illnesses (See “Brain diseases & disorders”)?

Many neuroscientists feel the field is entering a new era, spurred by new technologies and techniques (See “Neurotechnology”) with which they can finally explore the working brain and begin to answer these questions. Hand in hand with this is a surge of interest in the field among graduate students, funding agencies as well as philanthropists and private enterprises. And, since 2013, a handful of big science project have launched to study the brain including the European Commission’s Human Brain Project to create a supercomputer simulation of the human brain and the U.S. Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative (See “BRAIN Initiative”) to develop new brain research tools, along with smaller efforts in Japan, Israel and China.

2018 Kavli Prize in Neuroscience: A Conversation with Robert Fettiplace, James Hudspeth and Christine Petit

Hair cells
Sep 10, 2018

The 2018 Kavli Prize laureates discuss how they deciphered the inner workings of the inner ear—and potential to develop new ways to treat deafness and hearing loss.

How Sleep Refreshes Our "Etch-A-Sketch" Brains

Jun 22, 2017

For the first time, scientists have watched sleep transform the brain. The research confirms a long-standing theory about the value of sleep—and helps explain why sleep deprivation messes with our ability to remember. Four neuroscientists—Chiara Cirelli, Graham Diering, Richard Huganir and Ken Paller—discuss two breakthrough sleep studies. 

Scientists Want to Use Brain Implants to Tune the Mind

Mar 15, 2017

Can new technologies be used to treat mental illness or enhance memory? Three brain researchers—Helen Mayberg, Brian Litt and Jose Carmena—are betting on it.

Unlocking the Brain With Open Data

Fruit fly brain
Nov 10, 2016

Data sharing on a massive scale transformed the field of astronomy. Is neuroscience next? Astronomer Alex Szalay and neuroscientists Christof Koch and Joshua Vogelstein discuss.

The BRAIN Initiative: Three Years at the Frontiers of Neuroscience

Fruit fly brain
Oct 12, 2016

A group of scientists and funders—Walter Koroshetz (NIHO, James Olds (NSF), Christine Payne (Georgia Tech) and Terrence Sejnowski (Salk Institute)—reflect on what the BRAIN Initiative has already achieved and how it is evolving.

Creating a Perfect Brain Storm

Brainbow neurons
Sep 16, 2016

Nations around the world are making unprecedented investments in brain research. How will each one leave its mark—and what could they achieve together?

Solving the Puzzle of Alzheimer’s Disease

Amyloid plaques
Sep 15, 2016

In a roundtable discussion, three leading scientists in the fields of neuroscience, brain imaging and cell biology weigh in on what it will take to find a cure for Alzheimer's and related neurodegenerative disorders.

2016 Kavli Prize in Neuroscience: A Discussion with Eve Marder, Michael Merzenich and Carla Shatz

MHC proteins in the brain
Aug 23, 2016

The 2016 Kavli Prize laureates – Eve Marder, Michael Merzenich and Carla Shatz – discuss the brain's remarkable capacity for change and how that is causing us to rethink human potential.

Spotlight Live: A Microbial Manifesto (Transcript)

Feb 25, 2016

In this live webcast, three of the scientists behind The Unified Microbiome Initiative proposal—Janet Jansson, Rob Knight and Jeff Miller—discuss how to unlock the power of the microbial communities that shape our world and influence our health.

Spotlight Live: A Microbial Manifesto

Jan 11, 2016

A live webcast on the Unified Microbiome Initiative, in which Janet Jansson, Rob Knight and Jeffrey Miller discuss the potential of nature's microbiomes and how we can tap into it.


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