News from 2025

The Development of Instincts at the Single Cell Level

A new study from the Dulac Lab explores how one small brain region called the preoptic area (POA) of the hypothalamus changes through early life in mice. Though…

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Dulac Lab Identifies “Loneliness” Neurons in the Hypothalamus

Loneliness is encoded in the brain in a way that closely resembles the neural architectures governing drives like thirst and hunger, researchers from the Dulac Lab report. A…

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Innate or Earned? Rethinking the Role of Activity in Brain Development

Sixty years ago, Harvard scientists David Hubel and Torsten Wiesel famously showed that altering visual input in young cats irreversibly changed the organization of neurons in the visual…

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Harvard’s Program for Scientifically Inspired Leadership Bridges Educational Cultures

Each January, while many students enjoy a well-earned winter break, a select group of Harvard undergraduates embarks on a journey that transcends traditional learning. Founded by Dominic Mao,…

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How Brains (and AI) Use Variability in Rewards to Bolster Learning

In domains as diverse as mastering video games, controlling robotic limbs, and finetuning ChatGPT, a family of approaches known collectively as “reinforcement learning” (RL) has revolutionized the field…

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Upcoming MCB Career Development Seminar: A Scholar’s Digital Footprint

On February 28, the MCB community is invited to a hands-on workshop, A Scholar’s Digital Footprint – Tips for Using Scholarly Sites and Social Networks for Professional Purposes,…

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Staff Spotlight: Jillian Amaral – From Science Enthusiast to MCB Librarian

Jillian Amaral's journey to becoming the MCB Reference, Collections, and Instruction Librarian is a testament to her passion for science and her dedication to helping others navigate the…

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How a Novel Chaperone Drives Folding of an Essential Protein at Its Inception

Lurking in our genomes are thousands of uncharacterized protein-coding genes. Even more genes can be included in this uncharacterized category if we were to exclude general one- or…

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MCB’s Richard Losick Publishes Final Research Paper, Concluding Six Decades of Microbiology Breakthroughs

After nearly six decades of groundbreaking work in molecular biology, Richard Losick, the Maria Moors Cabot Research Professor of Biology, has published his final research paper in the…

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