2003 年 21 巻 2 号 p. 148-152
This article briefly discusses the issues of measuring the psychological effects caused by transmission delay of the image and sound in audiovisual telecommunication. The authors propose two measuring methods which are based on verbal conditioning and implicit learning. These methods can effectively measure the effects of transmission delay as a decrement of behavioral performance of participant and have the advantage that they can detect the effect even when participants could not be aware of the change in their own performance.