1+ week, 1+ day ago   (1184+ words) Confidence builds a sense of control, and two brain circuits turn that estimate into how much you learn from a win or a loss. When a job application disappears into silence, you have to decide whether the resume was weak…...

4+ day, 4+ hour ago   (1083+ words) T cells see only a small sample of the body’s proteins in the thymus, yet a machine learning model shows how they can still learn not to attack healthy tissue. A T cell finishes its training having met a small…...

4+ day, 14+ hour ago   (1077+ words) A soft jumping robot that twists itself tight under an infrared lamp, snaps its tail on the ground, and resets in mid-air to jump again. An origami paper frog jumps once. Then a hand has to pick it up, fold…...

4+ day, 13+ hour ago   (795+ words) Memory and consciousness may be encoded in the chemistry of the mesh packed around brain cells, not in the signals passing between them. Twenty years after you last heard it, a song comes on and the memory arrives with the…...

6+ day, 12+ hour ago   (928+ words) A massive genetic study found more than 1,000 DNA differences linked to human personality, revealing how genes help shape the Big Five traits. Personality can feel deeply personal, shaped by everything from childhood experiences to the way someone handles stress. But…...

1+ week, 15+ hour ago   (690+ words) In 1959, engineers at a U.S. Army laboratory built a device that amplified and routed signals using nothing but jets of air. More than six decades later, that half-forgotten technology is driving a quiet revolution in robotics. A team at King’s College…...

1+ week, 1+ day ago   (1061+ words) A new wearable approach to brain stimulation produced an unexpected result that could reshape how flickering-light therapies are delivered. When a light flickers at just the right speed, the brain’s electrical rhythms begin to match its beat. Researchers are studying…...

1+ week, 3+ day ago   (1228+ words) To find buried prey, the elephantnose fish senses tiny electric fields while firing its own pulses. A brain map shows how neurons filter them out. In muddy African rivers, an elephantnose fish hunts with sensors in its skin that pick…...

1+ week, 3+ day ago   (927+ words) DNA normally uses four letters. In lab tests, a bacterial enzyme successfully read eight, including four synthetic bases. All life writes with four letters. Because A pairs only with T, and G only with C, a cell can copy its…...

1+ week, 4+ day ago   (925+ words) The human brain treats red, yellow, green and blue as pure colors. New research suggests the reason comes from the colors found in nature. Humans everywhere seem to agree on something strange: red, yellow, green, and blue feel like pure…...