Unilateral Neglect Syndrome

The Intervention, called Mobilization and tactile Stimulation (MTS for short) is a hands-on physical therapy technique that can be used to treat the arm and hand after a stroke. It includes joint movements, massage, and sensory input like touch and compression. MTS is part of routine therapy for stroke patients when people cannot move or feel their arm normally. It may help with problems like neglect, which is when people are not aware of one side of their body after their stroke. The effectiveness of MTS to help people with neglect has not been widely studied yet. the investigators plan to invite adult stroke patients (18 years and over) with signs of neglect, who are more than 20 weeks post-stroke to be part of this study. They must be willing to have regular therapy at home, and each participant will need to have a carer who can assist with the research. Participants will be in the study for approximately three months. In the first two weeks they will not receive the MTS treatment but will have some regular measures undertaken (see details below). This is called the baseline Phase A stage. Then they move to Phase B where the investigators will deliver MTS therapy for 45-60 minutes, five days a week for six weeks. This is the treatment phase, known as Phase B. The regular measures will also continue during Phase B. Once the six weeks of MTS treatment is completed there is a final stage for two weeks (also known as Phase A because there is no treatment delivered). This is the withdrawal phase. The regular measures will continue during this phase. To see if the MTS has any impact on the stroke survivors the investigators will take regular measurements. The investigators will be using three different assessments for neglect. * The Letter Cancellation Test. The investigators will ask participants to cross out target letters from a sheet with various letters on it. * The Catherine Bergego Scale (CBS). This is a 10-item checklist where a therapist or carer observes daily activities and scores the stroke survivor doing everyday activities e.g., brushing your hair and eating. * The Fluff Test. In this test participants will be blindfolded and then asked to remove stickers from their body using their non-affected hand. During the study, participants will be assessed by a research therapist twice a week using the three tests. Carers will be trained to use the CBS and will also conduct daily assessments. After the 10 weeks is completed, the participant will be invited to share your experiences with us in an interview. This will help us understand better whether anything has changed because of being in this study. MTS is commonly used in clinical practice and has a low risk of side effects. There is a small risk of overuse syndrome, which can cause arm discomfort, but this can be managed by adjusting the therapy. While the investigators cannot guarantee direct benefits to participants, clinicians that investigators spoke to told us they thought the extra treatment could be beneficial for stroke survivors.

This study aims to investigate the effectiveness and underlying recovery mechanisms of a virtual reality-based training program for the treatment of neglect syndrome in stroke patients in the chronic phase (more than three months after onset). Neglect is a neurological condition characterized by a failure to attend to stimuli presented on the side contralateral to a brain lesion, despite preserved visual acuity and visual fields. Patients with neglect commonly exhibit impairments in activities of daily living, including dressing, eating, grooming, reading, and writing, and are prone to collisions with objects on the neglected side. This syndrome is widely acknowledged as a significant negative prognostic indicator for functional recovery following stroke. Previous treatments for neglect syndrome have shown promising results. Pizzamiglio et al. reported the effectiveness of visuo-spatial scanning training, while Julkunen et al. confirmed improvement using computer-based therapy. Frascineti et al. demonstrated benefits from prism adaptation therapy, and Robertson et al. found that activating the left limbs helped reduce neglect symptoms. Additionally, Brighina et al. reported that repetitive transcranial magnetic stimulation applied to the unaffected cerebral hemisphere effectively alleviated neglect. Recently, computer-based diagnostic tools have been developed to more accurately quantify and objectify neglect. Among them, Kim et al. developed a 3D VR program that can be applied regardless of the severity of motor impairment on the affected side. Virtual reality provides simulated, immersive environments that allow users to interact as if in real-world settings, enabling objective and quantitative assessment of neglect symptoms. In particular, visual fixation training within VR encourages spontaneous visual exploration and focused attention toward the affected side, which has been shown to be an effective strategy in reducing neglect in stroke patients. Virtual reality-based training has been increasingly applied clinically abroad. For example, the University of California's Institute for Creative Technologies uses VR for treating PTSD in Iraq war veterans, and the VRMC in the U.S. applies it for phobia and stress treatments. In Switzerland, programs like Mind Motion Pro are used for neuroregeneration-focused rehabilitation, and Japan has developed mediVR for trunk balance training. Although research on neglect using VR is active, it generally requires active therapist involvement. Few studies have clearly demonstrated the efficacy of VR treatment specifically in stroke patients, and VR applications in rehabilitation medicine remain relatively limited compared to psychiatric fields. In light of this background, our research team developed a virtual reality-based training program (NEGTREA) for the treatment of neglect syndrome in stroke. To evaluate its clinical feasibility, we conducted a targeted focus group interview with four out of five stroke patients with neglect who used the program. The study found that the VR-based neglect treatment was well tolerated without adverse effects and achieved high patient satisfaction, alongside improved assessment scores before and after program participation.