Yugo Hayashi

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The present study investigates how a conversational agent can facilitate explanation activity. An experiment was conducted where pairs of participants, who were enrolled in a psychology course, engaged in a task of explaining to their partners the meanings of concepts of technical terms taught in the course. During the task, they interacted with a(More)
The presented study is concerned with one aspect of the effect of a "whistleblower" or a person arousing or informing a different perspective on a collaborative problem-solving task. Its purpose is to find out, through an experiment, how a whistle-blower (which we called "Maverick") affects the facilitation of a breakthrough in a rule-discovery task. In the(More)
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The study investigates learning activities of students making explanations about a key concept in an online system with a Pedagogical Conversational Agent providing (1) facilitation on learners' explanations from various views and (2)social facilitation prompts of other members in the classroom. A total of 314 learner's explanation activities were collected(More)
A psychological experiment was conducted to capture the nature of Human-Human and Human-Agent Interactions where humans and computer agents coexist in a collaborative environment. Two factors were manipulated to investigate the influences of the 'schema' about and the 'actual partner' on the characteristics of communication. The first factor, expectation(More)
We investigated the influence of reflections on self/others' trust within group-based problem solving. We assessed the role of trust dynamics on perspective-taking activities within conflic-tive groups, extending the experimental framework used by Hayashi (2012) and including conversational agents for controlling participants' interactions related to trust(More)
Since neural networks have superior information processing functions, many investigators attempt to model biological neurons and their networks. Furthermore, a number of studies of neural networks have recently been made with the purpose of applying engineering to the brain. In this study, we investigate the effect of STDP on the ability to extract phase(More)