In their experiment, Cleary and her team attempted to trigger déjà vu in participants by having them navigate different scenes with a VR headset some scenes shared the same spatial layout, meaning their walls and furniture were placed in the same locations, for example. 'Short-term memory illusions' can warp human recollections just seconds after events, study suggests 'Secret code' behind key type of memory revealed in new brain scans 'Groundhog Day' syndrome made a man feel like he was reliving the same events This is called the "Gestalt familiarity hypothesis," built on the arrangement of items in an environment. In a study published in 2012 in the journal Consciousness and Cognition, Anne Cleary, a professor of cognitive psychology at Colorado State University, and her team used virtual reality (VR) to investigate the hypothesis that people may experience déjà vu when they encounter environmental layouts that are similar to those experienced in the past, provided that they don't recall that past experience. (For example, in 2010, University of Leeds researchers even reported using hypnosis to induce déjà vu in volunteers.) But they've found ways around this challenge. Historically, scientists have struggled to recreate déjà vu in the laboratory because it's difficult to identify stimuli that can evoke the feeling. "The new situation may share similarities with a past event, leading to a sense of familiarity without an accompanying memory of the specific details." She added that déjà vu may result from our brain's attempt to make sense of these perceived similarities and create a feeling of recognition, even if we cannot consciously recall the original experience. This theory suggests that "Déjà vu arises when a current situation strongly resembles a previously encountered but forgotten experience," Susmita said. Ooha Susmita, an in-house neuropsychiatrist at Allo Health, told Live Science. "One possible mechanism is the memory-based theory which focuses on the role of familiarity and recognition in déjà vu," Dr. However, given that déjà vu is also experienced by individuals without epilepsy or other conditions, there must be other explanations as to why the bizarre experience occurs.
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