Researchers at Purdue are recruiting healthy adults (50 to 90 years of age) without any swallowing difficulties (i.e., dysphagia) to participate in a study. Participants will wear adhesive sensors on the neck and eat various food items for a swallowing test. Participants must be healthy adults with no history of neurological disorders, head and neck cancer/surgery, GI problems, or respiratory disorders. Part 1 of this study requires one visit (~90 minutes) to our laboratory at Purdue. There is a possibility to participate in Part 2 of the study later in the academic year (if interested). Participants will receive $30 for their participation. This study will take place at the Imaging, Evaluation and Treatment (I-EaT) of Swallowing Lab (Director: Georgia Malandraki) in Lyles-Porter Hall. Free parking will be offered to all participants in the parking garage adjoining the building. Efforts will be made to schedule sessions at your convenience. For more information, please contact the Swallowing Lab at 765-496-0207 or firstname.lastname@example.org with Sensor Study in the subject line. Please include your phone number and preferred time and method of communication. IRB: 1605017777.