Classification The<unk>  is classified as a symptom-complex centered on drowsiness. It may be distinguished from ordinary fatigue. Researchers have previously studied this effect through the use of rotating rooms. When subjects who had previously shown minimal susceptibility to general motion sickness and fatigue (in this particular case, four military officers) were recruited to live in a rotating room for several days, they exhibited several signs of drowsiness, such as yawning and frequent napping. Despite numerous activities designed to promote awareness and excitability, the subjects showed decreased motivation to socialize or perform physical activities. Many of these symptoms could be attributed to the vestibular stimulation of the rotating rooms.
Sopite syndrome
Larsen syndrome
Jeavons syndrome
Roemheld syndrome
Dressler syndrome
Feingold syndrome
Reynolds syndrome
Crome syndrome