 389  People, too, have undergone such stimulation's in the course of diagnosis therapy for severe cases of epilepsy. Electrical stimulation's of certain regions, their brains have produced feelings of intense pleasure and of severe anxiety! loss of ability to think or express themselves a sudden increase in word outj® and profound feelings of friendliness. 11 The scientists who reported these findings was Dr. Jose Delgado of Ylei University's School of Medicine. In a lecture, Dr. Delgado discussed some ft pects of this work that might worry persons outside this field of research. He emphasized, first, that the implantation of electrodes in the brain an the passage of weak currents through them neither hurts (brain tissue is insensitive) nor causes any functional damage. Such studies, Dr. Delgado believes, may enable scientists to discover the "cerebral basis of anxiety, pleasure, aggression and other mental functions, which we could influence m their development and manifestation through electrical stimulation's, drugs, surgery and especially by means of more scientifically programmed education". Dr. Delgado believes that control of human behaviour on a large scale would not work because the effect of a stimulus can be changed or even overridden by the subject's own desires, emotions, etc. This has been shown in experiments on both animals and people. For example, monkeys in which aggressive behaviour was electrically stimulated did not just attack any other member of the colony, but made "intelligent" attacks only on rivals, sparing their "friends". Dr. Delgado thinks it will be necessary to develop new theories and concepts to explain the biological bases of social and anti-social behaviour. These, he said, "for the first time in history can be explored in the conscious brain". From The New York Times FISH STORY A special kind of fishing expedition was organized in Ohio. Its goal was to collect specimens, most of them known as placoderms, that lived some 300 million years ago. What had brought about the project was the cutting of a highway into Cleveland. Giant earth-moving machines would cut through a formation of worldwide fame, the Cleveland shale. For more than a century it had been known as a rich source of fossil fish from the Devonian period. Specimens, collected where rivers had cut through the shale, were prized possessions of the British in New York and other centres. Cleveland’s Museum of Natural History conducted the new hunt which, it was hoped, would provide the first complete with movable jaws. Some of these species had been partially reconstructed into creatures of frightening appearance. 389 |
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