Neuronal Activity (IMAGE) Rice University Caption By analyzing the signals of individual neurons, neuroscientists have deciphered the code the brain uses to make the most of its inherently 'noisy' neuronal circuits. These green and purple hills represent the average activity for many neurons in two different brain regions. These neuronal activity patterns will differ from time to time, even in response to exactly the same sensory stimulus, and those differences set the limit for how well the brain can sense things. Credit Xaq Pitkow/Rice University Usage Restrictions Must credit: "Xaq Pitkow/Rice University" 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.