The new organoids were grown in the lab for up to 40 days, and they mimicked the central nervous system of an 11-week-old human embryo.
Brain-computer interfaces have the potential to transform some people's lives, but they raise a host of ethical issues, too.
The printed tissue grows and functions like that in a normal human brain, according to the authors of the new study.
Activity in the brain's "ventromedial prefrontal cortex" differs between people who assume the worst in social situations and those who don't, a study finds.
Neuralink implanted its first brain chip in a human subject, and Musk posted on X that the person is "doing well" after surgery.
A "whole lotta" dopamine is what keeps our close relationships alive, a new rodent study suggests.
A new modeling study helps confirm that key connections in the brain are formed in the same way across different animal species, likely including humans.
Brain organoids, or minibrains, contain human tissues and have potential uses in basic research, drug development and computer science.
The new tissue-derived minibrains may complement existing models made from stem cells, the researchers behind the new study say.
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