Proposal for Primitives Representing Brain Function of Facial Expression Recognition

Abstract

Facial expression of humanlike pedagogical agent plays important role to affect the learners’ motivation to interact with it. Uncanny Valley (UV) effect is notorious in the agent design in that extraordinary humanlike agents affect observers negatively to feel eerie. In this study, to uniformly describe the conceptual brain function model which provides the explanation for the mechanism of UV effect, we propose the qualitative description with “basic function” and “representation primitives.” Basic functions are hypothesized to be intrinsic functions of brain functions with a consequence of which can represent arbitrary brain functions. Representation primitive is a semantic description that is defined in correspondence with a basic function.