Parafunctional activity Parafunctional activity A para-functional habit or parafunctional habit is the habitual exercise of a body part in a way that is other than the most common use of that body part. The term is most commonly used by dentists, orthodontists, or maxillofacial specialists to refer to para-functional uses of the mouth, tongue and jaw. Oral para-functional habits may include bruxism (tooth-clenching and/or grinding), tongue tension ("tongue thrusting"), fingernail biting, pencil or pen chewing, mouth breathing, and any other habitual use of the mouth unrelated to eating, drinking, or speaking. Crenated tongue is a descriptive term for when scalloping develops on
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,