Teaching a Computer that Lives (IMAGE) Lehigh University Caption In the research, images of handwritten digits will be encoded into what are called 'spike train stimuli,' similar to a two-dimensional bar code. The encoding of the spike train will then be optically applied to a group of networked in vitro neurons with optogenetic labels. Credit Xiaochen Guo/Lehigh University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.