Spontaneous Neuronal Activity in the Optic Tectum in a Zebrafish Larva (video) Cell Press Share Print E-Mail Loading video... Caption For the first time, researchers have been able to see a thought "swim" through the brain of a living fish. The new technology is a useful tool for studies of perception. It might even find use in psychiatric drug discovery, according to authors of the study, appearing online on Jan. 31 in Current Biology, a Cell Press publication. Credit Current Biology, Muto et al. Usage Restrictions Credit Required Share Print E-Mail 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.