著者

柳澤 秀吉

出版者

一般社団法人日本機械学会

雑誌

年次大会

巻号頁・発行日

vol.2014, pp._F111003-1-_F111003-5, 2014

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A user's experience of a product involves a set of transitions from one sensory state to another. For example, in the user's perception of a product's qualities, the state of their sensory modality may shift from vision to touch. Between such state transitions, users have expectations regarding their subsequent states based on their experience of a current state event. A disconfirmation between prior expectation and posterior experience evokes emotions such as surprise, satisfaction, and disappointment. Such emotions affect the user's perception of the value of a product. A noteworthy phenomenon in the perception of expectation disconfirmation is that the expectation affects the perceived experience itself. This psychological phenomenon called the expectation effect affects the user's perception of expectation disconfirmation. This effect is a key element for designing the affective experience of a product. In this article, we present our current studies regarding expectation effect. With a mechanism of the expectation effect, we discuss the essence of perceptual experience that consists of prediction as well as sense.