Researcher watching brain signals (IMAGE) Cell Press Caption This photo shows Konkoly watching brain signals from a sleeping participant in the lab. Researchers are working to expand and refine two-way communications with sleeping people so more complex conversations may one day be possible. Credit K. Konkoly 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.