[seydor]

the original paper is available https://www.cell.com/neuron/fulltext/S0896-6273(22)00806-6

They used a specific region of the electrode array to deliver the "reward" signal which was a regular predictable pulse pattern . An error was represented with unpredictable activity

[dr_dshiv]

Wait, wtf, sentience? “In vitro neurons learn and exhibit sentience when embodied in a simulated game-world”

[seydor]

The paper used unfortunate terminology everywhere even if there were negative comments about in the preprint. It caused a number of reactions https://pubmed.ncbi.nlm.nih.gov/36863319/