Direct two way radio communication between an animal's brain and a computer has been established for the first time by a team of scientists at Yale University. In an experiment, electrodes implanted in a chimpanzee's brain picked up electrical brain waves, which were then transmitted to a computer by a small receiver-transmitter atop the animal's head. The computer ... returned [a] control signal to another part of the brain through the receiver. Stimulated by the control signal, the latter part of the brain internally turned off the brain activity originally sensed by the computer. The head of the team is Dr. Jose M. R. Delgado, a 55-year-old Spanish-born neurophysiologist at the School of Medicine. Dr. Delgado ... has attracted both attention and controversy in the past for his experiments inducing anger, fear, affection, pleasure and other emotions in animals and human beings by telemetry stimulation of specific regions of the brain. We are now talking to the brain without the participation of the senses," said Dr. Delgado. "This is a pure and direct communication - I call it 'non sensory communication.'" Dr. Delgado said he expected to use the new technique on human beings within a year. Previously, Dr.' Delgado has applied what he calls ESB, for electrical stimulation of the brain, to human beings in experimental efforts to calm violent mental patients and relieve pain by radio. He has also halted by radio a charging bull, that was fitted with electrodes implanted in inhibitory regions of the brain.