Tiny bare-bones brains made in lab dishes
Simpler version of minibrains responsive enough to use for drug testing
![minibrain](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/02/021216_minibrainbrief_free.jpg?fit=860%2C460&ssl=1)
MODEL BRAIN In this minibrain, nerve cells (red) knit themselves together and send messages. Cell nuclei are shown in blue.
Johns Hopkins Center for Alternatives to Animal Testing