Rhythms of Ketamine (IMAGE) Picower Institute at MIT Caption A multitaper spectrogram of 120 seconds of readings from a human patient under ketamine anesthesia shows distinct bands of high power (warmer colors) at high "gamma" frequencies and very low "delta" frequencies. Credit Brown Lab/MIT PIcower Institute Usage Restrictions include credit when using image License Original 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.