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The Brain Processes Speech in Parallel With Other Sounds

October 21, 2021

Scientists thought that the brain’s hearing centers might just process speech along with other sounds. But new work suggests that speech gets some special treatment very early on.

Neuron Bursts Can Mimic Famous AI Learning Strategy

October 18, 2021

A new model of learning centers on bursts of neural activity that act as teaching signals — approximating backpropagation, the algorithm behind learning in AI.

How Animals Map 3D Spaces Surprises Brain Researchers

October 14, 2021

When animals move through 3D spaces, the neat system of grid cell activity they use for navigating on flat surfaces gets more disorderly. That has implications for some ideas about memory and other processes.

Chemistry Nobel Prize Honors Technique for Building Molecules

October 6, 2021

Benjamin List and David MacMillan received the 2021 Nobel Prize in Chemistry for their development of asymmetrical organocatalysis.

Medicine Nobel Prize Goes to Temperature and Touch Discoveries

October 4, 2021

David Julius and Ardem Patapoutian were awarded the 2021 Nobel Prize in Physiology or Medicine for their discoveries of how we detect heat and touch.

Q&A

Anil Seth Finds Consciousness in Life’s Push Against Entropy

September 30, 2021

How does consciousness arise in mere flesh and blood? To the neuroscientist Anil Seth, our organic bodies are the key to the experience.

Single Cells Evolve Large Multicellular Forms in Just Two Years

September 22, 2021

Researchers have discovered that environments favoring clumpy growth are all that’s needed to quickly transform single-celled yeast into complex multicellular organisms.

Mathematical Analysis of Fruit Fly Wings Hints at Evolution’s Limits

September 20, 2021

A painstaking study of wing morphology shows both the striking uniformity of individuals in a species and a subtle pattern of linked variations that evolution can exploit.

Biologists Rethink the Logic Behind Cells’ Molecular Signals

September 16, 2021

The molecular signaling systems of complex cells are nothing like simple electronic circuits. The logic governing their operation is riotously complex — but it has advantages.

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