The aim of this pilot study is to collect data on stroke patients and non-stroke patients or healthy volunteers using the BrainPulse Stroke Monitor. Subject characteristics, diagnostic procedures and clinical outcomes will be documented as part of the data collected to assess the clinical utility of the BrainPulse device. All eligible patients and healthy volunteers will be enrolled and assigned to a study Group based on confirmation of their diagnosis: Acute Ischemic Stroke, Hemorrhagic Stroke, Transient Ischemic Attack or No Stroke. The data collected from the BrainPulse will be compared across the different study groups in an attempt to distinguish stroke from other non-stroke conditions that present with similar symptoms and LVO from non-LVO types of strokes. Further assessments will also be made to evaluate if the BrainPulse can identify the presence of stroke.