The primary interest in this method is in familiarity-detection with novel scenes that have familiar layouts during instances of recall failure (when participants fail to recall the spatially similar scene that was presented earlier).
DEJA VU PSYCHOLOGY 2016 SERIES
For example, a virtual lodge scene might have the same layout as a previously toured virtual shopping mall, and the movement through the virtual lodge scene follows the same series of turns through the scene as was taken during the shopping mall tour. Later, they view a series of virtual tours with new scenes, some of which have the same spatial layout as earlier-viewed scenes despite otherwise being novel scenes (see Fig. ], participants view a series of simulated virtual tours through various scenes. The importance for memory research of virtual scenes, spatial tasks, virtual reality (VR), and this paradigm for isolating familiarity in the context of recall failure are discussed. We situate this work in the context of broader ongoing projects examining the subjective correlates of seizures. The patient reported experiencing déjà vu of the common non-seizure type during the virtual tour paradigm, without associated abnormalities of the intracranial EEG. The patient was studied with a virtual tour paradigm that has previously been shown to elicit déjà vu among non-clinical, young adult participants. We present a case of a person with a history of focal MTL seizures who reports having experienced both seizure-related and non-seizure common déjà vu, though the non-seizure type was more frequent during this person’s youth than it is currently. Survey research suggests that people who experience both seizure-related and non-seizure déjà vu can often subjectively distinguish between the two. A longstanding question is whether seizure-related déjà vu has the same basis and is the same subjective experience as non-seizure déjà vu.
Reports of an association between déjà vu and seizure aura symptomatology have accumulated for over a century, and frequent déjà vu is also now known to be associated with focal seizures, particularly those of a medial temporal lobe (MTL) origin. We discuss the possibility that déjà vu reports together with other studied variables mainly reflect the participants' willingness to report "extraordinal" experiences.Roughly two-thirds of all people report having experienced déjà vu-the odd feeling that a current experience is both novel and a repeat or replay of a previous, unrecalled experience. Finally, those who had reported déjà vu experiences reported more limbic system irritability symptoms. We found that sex, levels of neuroticism, depression, perceived stress, and attachment did not serve as predictors of experiences of déjà vu phenomena. Persons who experienced déjà vu were younger than the persons who had not experienced it. Déjà vu experiences were reported by 324 (88.8%) of them. The participants were 365 healthy adults ranging from 18 to 70 years recruited in the Czech Republic (mean age = 29.05 SD = 11.17) who filled out online questionnaires.
The study examines the prevalence of déjà vu in healthy Czech adults and explores its relationships with a number of variables: age, sex, neuroticism, depression, the degree of irritability in the limbic system, perceived stress, and finally attachment avoidance and anxiety.
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