1988 年 30 巻 2 号 p. 60-67
The present study investigated two basic processes in creating activity, the generating and selecting processes, based on an experimental analysis of pattern production. A two-process model of creating activity was proposed in terms of pattern production and three experiments were conducted with 41 to 98 college students, guided by the model. The first two experiments, in which subjects produced figural patterns under three task conditions, showed that the production rates of patterns were biased toward specific pattern structures regardless of the task differences. In the third experiment, the selection rates of patterns were measured and it was shown that the bias of the production rates cannot be attributed to a selection bias but to the structural dependency of generation. The results were analyzed based on the model and the specific form of the structural dependency of generation was estimated. It was concluded that the structural dependency of generation can be an intrinsic constraint on creation.