https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/715 2026-07-03T15:04:13Z 2026-07-03T15:04:13Z Kim, Jihwan Jung, Myeongul Kang, Donghyun Rhee, Taehyun James Kim, Dooyong Kim, Kwanguk https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/212920 2026-06-01T07:00:15Z 2026-04-01T00:00:00Z

Title: Affective and Cognitive Feedback from a Robot for Human-attributed Failure Handling Authors: Kim, Jihwan; Jung, Myeongul; Kang, Donghyun; Rhee, Taehyun James; Kim, Dooyong; Kim, Kwanguk Abstract: Human–robot collaboration increasingly frames robots as teammates rather than tools, yet there is limited guidance on how robots should respond when failures are attributed to the human collaborator. We investigate how robot collaborators should respond to support collaboration experience after a human-attributed failure. In a 4 × 2 mixed factorial design (N = 60), participants completed a collaborative block-stacking task with either a humanoid robot (NAO) or a human collaborator under four scenarios: success, affective feedback, cognitive feedback, and no feedback. We measured collaboration experience in terms of teamwork quality, perceived copresence, and intimacy. Both affective and cognitive feedback improved these outcomes compared with no feedback: affective cues yielded the strongest socio-relational gains (copresence, intimacy), whereas cognitive cues more strongly enhanced perceived teamwork quality. These patterns were consistent across human–robot and human–human collaboration, indicating shared team-level expectations that extend beyond the individual actor. The results provide empirical evidence for socially adaptive robots that pair brief emotional reassurance with concrete guidance to support collaboration after human-attributed failures.

2026-04-01T00:00:00Z Kang, Mingyu Jung, Myeongul An, Nakyoung Kim, Kwanguk https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/212940 2026-06-02T04:30:34Z 2026-04-01T00:00:00Z

Title: Physical Synchrony through a Beamed Robot Enhances Social Closeness and Inter-Brain Synchrony Authors: Kang, Mingyu; Jung, Myeongul; An, Nakyoung; Kim, Kwanguk Abstract: Integrating motion capture technology into a beaming system enables the formation of physical synchrony (PS) at a distance. This study extends previous research conducted in face-to-face (F2F) settings to investigate whether prior PS established remotely through a beamed robot (BR) can enhance social closeness and inter-brain synchrony (IBS). The results demonstrate that prior PS via BR enhances copresence, social presence, and IBS in overall prefrontal regions. Furthermore, we found that similar patterns of prefrontal cortex activation mainly occurred in the area related to cognitive social processing. Our results highlight BR as a platform for physically mediated social engagement in remote interaction contexts that can be utilized to facilitate future applications in remote education, collaborative problem-solving, and human–robot interaction.

2026-04-01T00:00:00Z Kim, Eunji Baek, Eunsoo https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/210948 2026-02-25T07:30:38Z 2026-04-01T00:00:00Z

Title: When access creates threat: Core customers’ responses to in-house rental services Authors: Kim, Eunji; Baek, Eunsoo Abstract: Access-based consumption is rapidly expanding as firms adopt circular business models, with many brands now offering in-house rental services. Yet research on brand-managed access remains limited, with most work emphasizing the functional case for access such as economic and sustainability benefits. Shifting the lens to the core customer, the present research investigates how in-house rental services reshape identity-relevant emotions and brand evaluations. Drawing on identity signaling and brand community perspectives, we examine the symbolic and affective consequences of brand-managed access for core customers. Across three experiments spanning fashion and technology, offering an in-house rental option lowered core customers’ brand image evaluation. This effect was driven by stronger perceived symbolic threat from non-core customers and reduced brand-related pride. Moreover, the mechanism varied across non-core customer types—brand immigrants (who claim in-group membership) versus brand tourists (who use the brand without asserting membership). While prior work suggests immigrants are more threatening in ownership-based contexts, we find a departure from under brand-managed access: in rental settings, tourists elicited stronger symbolic threat among core customers than immigrants. Overall, this research extends access-based consumption research to brand-managed access and clarifies how access modality shapes identity-based brand evaluations. The findings also offer actionable guidance for brands considering in-house rental programs by identifying conditions under which core-customer backlash is likely to emerge.

2026-04-01T00:00:00Z Zhao, Jiaxin Wang, Xupeng Xi, Lingxiao Cheng, Xinran Bae, Jihyun Li, Yongwei https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/212537 2026-05-09T05:01:56Z 2026-04-01T00:00:00Z

Title: Study on the Influence of Protector Design on the Biomechanical Characteristics of Knee Joint Movement Authors: Zhao, Jiaxin; Wang, Xupeng; Xi, Lingxiao; Cheng, Xinran; Bae, Jihyun; Li, Yongwei Abstract: To investigate how knee joint protector design affects the biomechanical characteristics of knee motion under various activities, this pilot study (n = 5) examined how knee joint protector design modulates knee biomechanics across walking, jogging, squatting, and sit-to-stand tasks using optical motion capture and AnyBody musculoskeletal modeling (FullBody_GRFPrediction). We quantified knee flexion kinematics, model-estimated joint reaction forces and moments, and model-estimated muscle activity of eight lower-limb muscles under four conditions with different levels of structural constraint: no protector (Pro.off), a conventional sleeve-type protector (Pro.a), a segmented support protector (Pro.b), and a wrapping fixation protector (Pro.c). The biomechanical protective performance of the knee joint protector was task- and phase-dependent. The results showed that Pro.a optimized muscle activation. Pro.b increased sagittal-plane design but increased joint loading and muscle activity. Pro.c induced noticeable distal compensation along the kinetic chain. The findings revealed that protector effects were task-dependent. Dynamic tasks mainly affected coronal-plane stability parameters, whereas quasi-static tasks more clearly altered sagittal load distribution. In this study, biomechanical protective performance is defined as reduced knee joint loading without disproportionate increases in model-estimated muscle activity or excessive loss of functional knee flexion range. Under this definition, greater structural constraint did not consistently produce a more favorable biomechanical profile. These results provide a feasibility baseline for task-specific protector evaluation and motivate confirmatory studies with larger cohorts and experimental validation. This study provides theoretical and methodological insights to guide future design and optimization of knee joint protectors.

2026-04-01T00:00:00Z