The gait in patients suffering from Normal Pressure Hydrocephalus (NPH) is called MAGNETIC GAIT, and it looks something like what is shown in the above video.
NPH , which is one of the few treatable causes of dementia is clinically characterised by the triad of Gait Disturbance, Dementia and Incontinence. This triad of symptoms is called as the HAKIM-ADAMS TRIAD.