Proposal of the Model of the Influence of Judgement of Agency on Sense of Fulfillment with Assistive Method

Abstract

According to the self-determination theory, we considered the disappearance of autonomy of product operation result in the decrease in sense of fulfillment of product use. The purpose of this study was to develop a mathematical model that explained the effect of sense of agency (SoA) on sense of fulfillment. For this purpose, we integrated the idea of judgment of agency (JoA), flow theory, and attribution theory. We formulated the effect of the locus of causality on skill and challenge using attribution theory. Self- determination theory explains the relationship between increased sense of fulfillment and autonomy needs that are fulfilled. The model explains the relationship in self-determination theory where sense of fulfillment increases when judgement of agency is internal. We conducted an experiment using a game task with different types of assistance to verify the hypothesis. Flow score was used as an indicator of sense of fulfillment between two assistance methods in which judgement of agency was changed according to ease of recognition of assistance. We assumed that the hard-to-recognize assistance made judgement of agency internal. As a result of the experiment on three subjects, the flow scores were high with the hard-to-recognize assistance. Therefore, the experimental result supported the hypothesis.