As Virtual Reality (VR) technology becomes increasingly accessible, it offers powerful opportunities for controlled investigation of environmental and lighting effects on human behavior. VR enables precise manipulation of spatial and photometric variables, allowing researchers to evaluate human responses without the constraints of physical settings. Although prior studies show that well-calibrated VR can approximate real spaces for visual perception, evidence remains limited regarding its validity for assessing behavioral and cognitive outcomes, particularly among older adults. This study examines whether a VR-based lighting environment can serve as a reliable surrogate for a real-world setting when measuring perceptual appraisals and cognitive performance in aging populations.

Thirty-seven older adults were recruited, and thirty-two met the inclusion criteria and completed both experimental sessions. Using a within-subjects, counterbalanced design, participants performed a three-dimensional Trail Making Test–inspired task in a physical environment and in a matched virtual replica. The virtual scene was generated from a calibrated high dynamic range image of the real setting, tone-mapped, and rendered as an immersive 360-degree environment in Unreal Engine. Illuminance and correlated color temperature were closely matched across conditions using spectrometric and luminance measurements.

Subjective responses indicated comparable ratings of pleasantness and comfort in both environments. However, excitement, stress, and confusion were significantly higher in VR, suggesting elevated emotional arousal and cognitive load during immersive exposure. Despite these perceptual differences, no statistically significant differences were observed in completion times or error rates. Cognitive outcomes remained strongly associated with Mini-Mental State Examination scores across both settings, supporting the stability of the assessment. Overall, the findings demonstrate that a carefully calibrated VR environment can reproduce key lighting characteristics and support valid cognitive assessment in older adults, while highlighting the need to address spectral discrepancies and affective responses in future VR-based lighting research.

The heightened vulnerability of older adults during public health emergencies, particularly those involving respiratory pathogens, has renewed attention to the role of the built environment in shaping psychosocial well-being in long-term care settings. Social isolation, already prevalent among older adults, was intensified during recent crises due to prolonged distancing, restricted visitation, and disruption of therapeutic routines. These impacts were especially severe for residents of memory care facilities living with Alzheimer’s disease and related dementias (ADRD), who are highly sensitive to changes in spatial organization, routine, and social cues. This paper examines the spatial consequences of health-related disruptions in congregate care environments and proposes evidence-based design strategies to strengthen social engagement and psychological resilience in memory care settings.

Through a systematic interdisciplinary review spanning environmental gerontology, healthcare architecture, public health, and behavioral science, the study identifies six immediate environmental interventions: meaningful communication, therapeutic engagement, integrated health screening, reduction of contact-related transmission, accessible outdoor environments, and calibrated spatial density to enhance personal comfort. These short-term strategies are complemented by ten long-range design guidelines to promote resilience, including spatial zoning and activity clusters, decentralized layouts, intuitive circulation and wayfinding, biophilic integration, multisensory engagement, flexibility in use, embedded infection-control strategies, personalized spaces, community integration, and technology-enhanced environments. Together, these recommendations advance a shift from reactive institutional responses toward adaptable, person-centered care models.

The analysis is framed by environmental press theory, person–environment fit, and salutogenic design to illustrate how spatial configurations influence cognitive function, emotional regulation, and social agency in individuals with ADRD. Ultimately, the paper argues that memory care facilities must be reconceptualized as infrastructures of social health, spaces that safeguard dignity, autonomy, and connection while remaining adaptable to future public health emergencies.

Tokyo is celebrated and known for its spatial efficiency and technological advancement, yet beneath this pragmatism is a pressing demographic challenge: over 29.1% of Japan’s population is aged 65 and older. As Japan becomes one of the world’s fastest-aging societies, its urban environments must increasingly support elderly well-being. Nowhere is this ethos more evident in Japan than Tokyo, the world’s largest city with densely populated metropolitan areas. Using a qualitative methodology emphasized in literature review, supported by site observation, case studies and logical argumentation, the study examines three urban conditions that contribute to senior isolation: high-density housing typologies, fragmented public spaces, and large-scale redevelopment. The research illustrates how design decisions prioritizing efficiency and commercial value will often overlook the urgent relational needs of seniors, resulting in diminished neighborhood familiarity, weakened social networks, and increased physical and emotional disconnection from the city around them. However, the study also examines design strategies that begin to foster inclusion, community, and autonomy for older adults. Drawing on contemporary planning practices, these positive ‘typologies’ include transit-oriented development and mobility access, micro-scale public realms, and intergenerational shared housing models. Furthermore, the authors propose several innovative interventions that create spaces for connection, such as memory-friendly wayfinding, care-integrated public spaces, and low commitment social infrastructure.

Ultimately, the paper argues that Tokyo’s response to senior isolation exposes core tensions between density and intimacy, growth and care, and efficiency and empathy. Drawing on literature by Gehl, Cullen, and Almazan and supported by studies from Matsumoto (2011), Drilling et al. (2025), and Raikhola & Kuroki (2009), this study reveals how spatial design of the city has the power to enable or withdraw social connection, instill or erode dignity, and reinforce or weaken agency in later life. The insights extend beyond Tokyo, offering a framework for global cities grappling with aging populations.