The sleep EEG multitaper spectrogram reveals patterns of continuous changes in brain oscillation activity during sleep. Characteristic patterns clearly differentiate waking (left) from nonREM (center) ...

A spectrogram of brain rhythm frequencies over time predicted by the team's model. After a first, moderate dose of ketamine gamma brain rhythm power (warmer colors) emerges. Then as the dose increases ...

The radio hackers in the audience will be familiar with a spectrogram display, but for the uninitiated, it’s basically a visual representation of how a range of frequencies are changing with time.