抄録
Sign language is the language that utilized visual information. We used the sign language conversation video which we collected under two kinds of conditions of the sign language that restricted a non-manual signal by covering a face and movement this time and examined influence to give conversation in the being characteristic situation. From a result, we understood that many of outbreak factors of simultaneous utterance were cooperation strategic intervention and strategic intervention. However, only a person of the interviewer who did not have leadership understood that it was generated a lot by cooperation strategic intervention. It was confirmed that they tended to be going to get a right to speak by both together strategic intervention. Because a facial expression of a partner was not seen by the sign language that restricted a non-manual signal by influence to give conversation by a difference of a restriction condition, there was much number of outbreaks of same time utterance. In addition, an act to miss eyes when they got a right to speak was seen so that a facial expression was seen by the sign language that restricted a finger.
