Electroencephalographic Characteristics of the Déjà Vu Phenomenon
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Déjà vu (DV) – is an aberration of mental activity associated with the perception of surrounding reality with the impression that unknown objects, new contexts, and people seen for the first time are for some moments perceived as familiar. The aim of the present work was to study the EEG characteristics of the DV phenomenon in epilepsy. A total of 166 subjects took part in the study; subjects were 25.17 ± 9.19 years old and 63.2% were women. The déjà vu phenomenon was compared in groups of healthy subjects (139 subjects) and epilepsy patients (27 cases). Patients were interviewed regarding the characteristics of DV and underwent prolonged (12–16 h) ambulatory EEG monitoring. On the EEG, the phenomenon of DV was characterized by onset with multispike activity in the right temporal leads and, in some cases, ended with slow-wave θ–δ activity in the right hemisphere.
Keywordsdéjà vu epilepsy all-day EEG monitoring
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