Last month, Dr. Lindner, a Baltimore psychoanalyst, described how Kirk Allen, a young research physicist, was sent to him by the doctor at the top-secret installation where Allen worked. Allen suffered from the delusion that he was spending part of his life on another planet. As the first step in his treatment, Dr. Lindner got his life history: Allen was the only child of an elderly father, the U.S. Commissioner of a small Pacific island, and a young mother who neglected him. As a small boy he had an affectionate Polynesian nurse, and at eleven he was prematurely…