Abstract
In a task to keep water temperature constant by manual dial operation, the correlations between feedback informations given to subjects and their control behavior were investigated. In this study, different feedback informations were given to the subjects who are divided into four groups. That is, informations concerning water temperature, displayed either in analog or digital form, were shown spontaneously or with a two minute delay. Each subject performed fifteen trials. Deviations from target temperature, number of operations and frequency which the subject needed the temperature information were analyzed.
As a result the following two results were obtained. With increasing learning experience, the information content which the subjects needed changes from the dynamic characteristics to the current conditions of the system. The kind of feedback information such as analog or digital form influences dial operation.
