Inclusion Criteria:  (Stroke patients)  Right handed Patients with first onset stroke, with right brain lesions confirmed by imaging tests (MRI, CT) Onset of stroke more than 1week (Normal people) Right handed Who has no problem in identifying objects with wearing VR head gear.  Exclusion Criteria:  (Stroke patients)  Patients with unilateral neglect due to other causes. Patients with neurological diseases other than stroke (Parkinson's disease, Alzheimer's disease, etc.) Patients with severe cognitive impairment. Patients with underlying diseases or medical history that may cause visual impairment.  (Normal people)  Who has a neurological disease such as stroke, traumatic brain injury, Parkinson's disease, or Alzheimer's disease. Who has a severe cognitive impairment. Who has a underlying diseases or medical history that may cause visual impairment.