@phdthesis{oai:oist.repo.nii.ac.jp:00002055,
 author = {Ota, Shoko},
 month = {2021-05-12, 2021-05-12},
 note = {Intrinsic motivation is a fundamental basis for creativity. However, little is known about which factors are essential in a behavioral environment for creative activity. I propose a hypothesis that intrinsic motivation in creative activity is facilitated by a higher variety of expressions using simpler rules. To examine the hypothesis, I conducted a novel human behavioral experiment with 42 participants using the original game designed based on the Game of Life cellular automata. The simplicity of a rule is controlled by the parameters of state transition function and quantified by the complexity measures formulated in the theory of cellular automata. The variety of expression is quantified by the features of the cell states, such as entropy of local patterns and empowerment. The degree of intrinsic motivation is measured by subjective enjoyment, playing time, and frequency of touch interaction. The results of two-way ANOVA of the scores of enjoyment for the four rules showed that participants were more intrinsically motivated with a higher variety of expression and a simpler rule, which supports the hypothesis. Regression analyses revealed that the variety of local patterns was a major factor for subjective enjoyment and also suggested two types of subjects. Subgroup analyses showed that participants had opposite preferences for simple and complex rules. The present results are generally consistent with the hypothesis but point to the necessity of considering individual differences.},
 school = {Okinawa Institute of Science and Technology Graduate University},
 title = {創作活動における内発的動機づけ機構の解明},
 year = {}
}