Abstract
The present study examined three factors in communication which may make us irritated when we send verbal information. Those are sending unit of information, frequency of the receiver's misrecognition of information, and waiting time before getting tne receiver's response. These factors were manipulated in a simulated voice recognition system. Main results were as follows: 1) The above three factors influence the feeling of irritation during information-sending tasks. 2) Information-sending tasks even with the smallest unit such as monosyllable do not cause the feeling of irritation when misrecognition rarely occurs (5%- or 0%-frequency per unit) and waiting time is very short (0.025sec per unit). 3) Frequency of misrecognition and waiting time can not compensate each other to reduce the feeling of irritation during information-sending. Further studies are necessary in order to see if there is a common mechanism to cause irritation of information-senders whether their receiver is a real person or not.
