Bruxism the phrase "wailing and gnashing of teeth" is used to describe the fate of sinners in hell (). In David Lynch's 1977 film "Eraserhead", Henry Spencer's partner ("Mary X") is shown tossing and turning in her sleep, and snapping her jaws together violently and noisily, depicting sleep bruxism. In Stephen King's 1988 novel "The Tommyknockers", the sister of central character Bobbi Anderson also had bruxism. In the 2000 film "Requiem for a Dream", the character of Sara Goldfarb (Ellen Burstyn) begins taking an amphetamine-based diet pill and develops bruxism. In the 2005 film "Beowulf & Grendel", a modern reworking of
Involuntary memory diary method was also applied to the study of involuntary memory chaining. The main hypothesis was that chaining would also occur on autobiographical memory tasks. Participants were asked to report the presence of involuntary memories while performing an autobiographical memory task. Results showed that participants did experience involuntary memory recall when they were recalling the past deliberately (also known as voluntary memory). This implies that involuntary memory production occurs as a product of chaining from voluntary memory—deliberate recall of the past. A common question in the study of involuntary memory is related to priming; what is it that activates such