Author

Takuji Narumi

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Aug 2026

When the Audience Laughs with You: Effects of Virtual Audience Laughter Modality and Synchrony on Comedy Viewing in VR

Laugh tracks are a well-known technique for amplifying humor perception through audio. However, it remains unclear how such amplification transfers to VR, where audiences are embodied as virtual co-viewers in emerging shared entertainment spaces. To address this, we examined two design dimensions of virtual audience la...

Ryo Ohara, Chi-Lan Yang, Takuji Narumi et al. · ACM Transactions on Applied... · 0 citations

Book Open access Aug 2026

Exploratory fNIRS Measures During Redirected Hand Interaction

Redirected hand techniques alter the displayed position of a user’s hand to support haptic interaction in virtual reality. We report an exploratory feasibility study combining detection thresholds (DTs) and wearable frontal functional near-infrared spectroscopy (fNIRS). Fifteen right-handed participants performed reach...

Keigo Matsumoto, Koki Ono, Takuji Narumi · Proceedings of the 2026 ACM... · 0 citations

#explainable ai Book Open access Sep 2026

Examining How Explanations from Multiple AI Agents Affect User Trust After AI Refusal

AI systems are designed to decline certain requests to avoid providing harmful or inaccurate information. However, refusals can unintentionally reduce users’ impressions of and trust in AI. Prior work has examined what an AI should explain when refusing a request, but offers no guidance on which AI should deliver the e...

Kohei Yamamoto, Chi-Lan Yang, Takuji Narumi et al. · Proceedings of the 26th ACM... · 0 citations