心的概念の不確実性の問題

—ウィトゲンシュタインの「心理学の哲学」の観点から—

抄録

In this paper, we discuss an uncertainty of mental concepts. In the application of mental concepts, we often face disagreement. For example, observing a behavior, some person judges he/she is sad, but others do not. Surprisingly, in his Last Writings on the Philosophy of Psychology, Wittgenstein says that there is an uncertainty of criteria in the mental concepts. In other words, he thinks disagreement in judgements about other’s mental state originates from conceptual dimension rather than empirical dimension. (e.g., differences in context and information quantity) The goal of our study is to clarify why mental concepts have this kind of uncertainty.