* THE SPEAKER who fervently stabs the air with his finger to emphasize a word is giving only a gross demonstration of what apparently goes on all the time between body and speech, a Pittsburgh scientist has found. The body does not simply move randomly as a person speaks, nor is it still. Body movements have a pattern that corresponds precisely to the speech pattern, said Dr. William S. Condon of the University of Pittsburgh School of Medicine, Pittsburgh. For instance, as a phrase of speech begins, a part of the body starts to move. As the phrase ends, so does the motion and another begins. Similarly, as an individual's stress in words changes, body movements follow suit. A kick in speech is accompanied by a kick somewhere in the body. In other words, the body, in a sense, dances to the rhythm of speech. Usually these motions are on an extremely subtle and complex level, Dr. Condon told SCIENCE SERVICE. The movement might be in only one part of the body, such as the head, but more often it is a matrix of movement-finger, eyebrow, wrist, foot, and so on. This dancing phenomenon is most prominent at the syllable level, said Dr. Condon. As words break, so do body movements shift direction. For instance, in the phrase, I was gon-na, a subject closed his eyes on gon and opened them on na. Evidently, said the scientist, syllable breaks are extremely important stops in the continuity of language and are therefore clearly reflected in movement. However, shifts sometimes take place on a sub-syllable level. In speech the vowel i breaks into four a's and two e's. Always, body motion, as in the hands, will change direction after the a's. It is difficult to describe verbally, said Dr. Condon. You have to see it to believe it. Throughout close study of 30 or 40 films during the past four years, Dr. Condon has found this precise and consistent correlation between body motion and speech. Moreover, the body-speech unity is universal in normal people. It existed whether the people in the films were Mexicans or Americans, but broke down when the subjects were schizophrenics or brain damaged patients, he said. Speech has a high degree of structure and order, said Dr. Condon. Theoretically, it is possible that when the mind is involved with speaking, it just naturally imposes the same order on the rest of the body. Most recently, Dr. Condon and his colleague, Dr. William Ogston, have found !that brain waves as measured by an electroencephalograph also are synchronized with speech. Phrases repeated by subjects in the study appeared to leave traces on the EEG charts that resembled speech patterns. Even stranger, Dr. Condon said, was the discovery that a listener's body also will dance to the rhythm of speech although he is saying nothing. Perhaps this research is actually tapping what could be called the basic rhythm of life.