Leto Sapunar headshot

Leto Sapunar


Leto Sapunar is a freelance science journalist covering physics, space, climate and science accountability since 2020. He has been writing for Popular Science since early 2021, and his work can also be found in Scientific AmericanInside Climate News and Retraction Watch, among other outlets.

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The illusion of AI consciousness: Lessons from human unconscious processing

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Research image of cell-surface protein LPHN2.

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A versatile pair of proteins steers neurons toward their targets and helps establish the brain’s sensory maps, new studies suggest.

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Reward-learning algorithm hardwired into dopamine circuit

The finding bolsters the canonical model of reward prediction error, which has come under scrutiny in recent years.

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