Lemma

Today's papers

· Edition No. 2

Medicine & Biology

  1. Credibility: Promising abstract only

    Very small doses of the magic-mushroom drug caused no hallucinations, an early trial hints

    Psilocybin, the active chemical in magic mushrooms, produced no hallucinations at very low doses. In 56 healthy adults, doses of 0.5 to 4 milligrams were noticeable but caused no visions and no drop in attention or memory.

AI & Computer Science

  1. Credibility: Promising abstract only

    An AI fed raw collider data reproduced famous particle masses on its own

    A computer model was fed about a billion real particle collisions and told almost no physics. The fake collisions it then produced show the correct masses of several known particles, matching values physicists had already measured.
  2. Credibility: Solid

    Today's best AI models often fail at simply copying text back exactly

    Leading AI chat models make mistakes when asked to repeat a piece of text word for word. On long, repetitive text, five top models copied it correctly less than half the time.

Psychology & Neuroscience

  1. Credibility: Promising abstract only

    Growing up around threat may reshape one particular brain network

    Young people who faced more threat, like violence at home, had a larger brain network that links thinking to body movement. Scans of 4,525 people aged 9 to 18 showed the network grew as threat rose.
  2. Credibility: Promising abstract only

    When the rules of making money change, people quickly change how much risk they take

    People's taste for risk is not fixed. In a paid experiment where money grew in two different ways, participants shifted their risk-taking to nearly the level that grows wealth fastest over time.