Allison Whitten

Contributing Writer

Latest Articles

Gene Expression in Neurons Solves a Brain Evolution Puzzle

February 14, 2023

The neocortex of our brain is the seat of our intellect. New data suggests that mammals created it with new types of cells that they developed only after their evolutionary split from reptiles.

New Chip Expands the Possibilities for AI

November 10, 2022

An energy-efficient chip called NeuRRAM fixes an old design flaw to run large-scale AI algorithms on smaller devices, reaching the same accuracy as wasteful digital computers.

Lab-Grown Human Cells Form Working Circuits in Rat Brains

October 12, 2022

Letting human brain organoids grow in animal brains could be an ethical new option for experimental studies of neurological disorders.

Q&A

The Computer Scientist Challenging AI to Learn Better

August 2, 2022

Christopher Kanan is building algorithms that can continuously learn over time — the way we do.

By Exploring Virtual Worlds, AI Learns in New Ways

June 24, 2022

Intelligent beings learn by interacting with the world. Artificial intelligence researchers have adopted a similar strategy to teach their virtual agents new tricks.

The Brain Has a ‘Low-Power Mode’ That Blunts Our Senses

June 14, 2022

Neuroscientists uncovered an energy-saving mode in vision-system neurons that works at the cost of being able to see fine-grained details.

Brain Chemical Helps Signal to Neurons When to Start a Movement

March 22, 2022

Dopamine, a neurochemical often associated with reward behavior, also seems to help organize precisely when the brain initiates movements. It’s the latest revelation about the power of neuromodulators.

AI Overcomes Stumbling Block on Brain-Inspired Hardware

February 17, 2022

Algorithms that use the brain’s communication signal can now work on analog neuromorphic chips, which closely mimic our energy-efficient brains.

AI Researchers Fight Noise by Turning to Biology

December 7, 2021

Tiny amounts of artificial noise can fool neural networks, but not humans. Some researchers are looking to neuroscience for a fix.

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