Artificial Pavlov's Dog (IMAGE) Cell Press Caption This image shows an artificial Pavlov's dog created from programmable liquid crystal polymer networks that 'learn' to respond to light after association with heating. Credit Zeng and Zhang et al. Usage Restrictions Credit Required. 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.