Bruxism when the parafunctional activity occurs – during sleep ("sleep bruxism"), or while awake ("awake bruxism"). This is the most widely used classification since sleep bruxism generally has different causes to awake bruxism, although the effects on the condition on the teeth may be the same. The treatment is also often dependent upon whether the bruxism happens during sleep or while awake, e.g., an occlusal splint worn during sleep in a person who only bruxes when awake will probably have no benefit. Some have even suggested that sleep bruxism is an entirely different disorder and is not associated with awake bruxism.
Involuntary narrative same object, media or technology are perceived as a continuum. When a purposeful overlap of the physical and the virtual takes place, it could be called vireal (Gramelsberger, Klein). The involuntary narrative, hypnagogia and the Dreamachine, trigger what is already in the individual by referring to his or her own past history. The involuntary narrative is accidental and in that differs from both the hypnagogic state and the state induced by the Dreamachine. Auditive and visual signals, as for example mobile phone ringtones, virtual identity thumbnails, alert sounds, signals and information screens in public transport, adverts displayed in LED screens,