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Déjà vu phenomenon-related EEG pattern. Case report.

Vlasov PN, Chervyakov AV, Gnezditskii VV - Epilepsy Behav Case Rep (2013)

Bottom Line: Déjà vu (DV, from French déjà vu - "already seen") is an aberration of psychic activity associated with transitory erroneous perception of novel circumstances, objects, or people as already known.This study aimed to record the EEG pattern of déjà vu.In patients with epilepsy, DV episodes began with polyspike activity in the right temporal lobe region and, in some cases, ended with slow-wave theta-delta activity over the right hemisphere.

View Article: PubMed Central - PubMed

Affiliation: Moscow State University of Medicine and Dentistry, Moscow, Russia.

ABSTRACT

Background: Déjà vu (DV, from French déjà vu - "already seen") is an aberration of psychic activity associated with transitory erroneous perception of novel circumstances, objects, or people as already known.

Objective: This study aimed to record the EEG pattern of déjà vu.

Methods: The subjects participated in a survey concerning déjà vu characteristics and underwent ambulatory EEG monitoring (12-16 h).

Results: In patients with epilepsy, DV episodes began with polyspike activity in the right temporal lobe region and, in some cases, ended with slow-wave theta-delta activity over the right hemisphere. There were no epileptic discharges in healthy respondents during DV.

Conclusion: Two types of déjà vu are suggested to exist: "pathological-epileptic" déjà vu, characteristic of patients with epilepsy and equivalent to an epileptic seizure, and "nonpathological-nonepileptic" déjà vu, which is characteristic of healthy people and psychological phenomenon.

No MeSH data available.


Related in: MedlinePlus

EEG monitoring of patient S. A DV episode. Patient's label (red line). EEG shows rhythm desynchronization but no epileptiform signs.
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f0005: EEG monitoring of patient S. A DV episode. Patient's label (red line). EEG shows rhythm desynchronization but no epileptiform signs.

Mentions: At 00:42, the patient was in the kitchen, when she experienced a feeling of unreality and expected a DV. She pressed the marker button. She felt interest and pleasant emotions and became attentive to her condition. She had a feeling that everything had happened before and knew what was going to happen next (anticipation). The episode lasted about 10 to 15 s (Fig. 1).


Déjà vu phenomenon-related EEG pattern. Case report.

Vlasov PN, Chervyakov AV, Gnezditskii VV - Epilepsy Behav Case Rep (2013)

EEG monitoring of patient S. A DV episode. Patient's label (red line). EEG shows rhythm desynchronization but no epileptiform signs.
© Copyright Policy - CC BY-NC-SA
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4150674&req=5

f0005: EEG monitoring of patient S. A DV episode. Patient's label (red line). EEG shows rhythm desynchronization but no epileptiform signs.
Mentions: At 00:42, the patient was in the kitchen, when she experienced a feeling of unreality and expected a DV. She pressed the marker button. She felt interest and pleasant emotions and became attentive to her condition. She had a feeling that everything had happened before and knew what was going to happen next (anticipation). The episode lasted about 10 to 15 s (Fig. 1).

Bottom Line: Déjà vu (DV, from French déjà vu - "already seen") is an aberration of psychic activity associated with transitory erroneous perception of novel circumstances, objects, or people as already known.This study aimed to record the EEG pattern of déjà vu.In patients with epilepsy, DV episodes began with polyspike activity in the right temporal lobe region and, in some cases, ended with slow-wave theta-delta activity over the right hemisphere.

View Article: PubMed Central - PubMed

Affiliation: Moscow State University of Medicine and Dentistry, Moscow, Russia.

ABSTRACT

Background: Déjà vu (DV, from French déjà vu - "already seen") is an aberration of psychic activity associated with transitory erroneous perception of novel circumstances, objects, or people as already known.

Objective: This study aimed to record the EEG pattern of déjà vu.

Methods: The subjects participated in a survey concerning déjà vu characteristics and underwent ambulatory EEG monitoring (12-16 h).

Results: In patients with epilepsy, DV episodes began with polyspike activity in the right temporal lobe region and, in some cases, ended with slow-wave theta-delta activity over the right hemisphere. There were no epileptic discharges in healthy respondents during DV.

Conclusion: Two types of déjà vu are suggested to exist: "pathological-epileptic" déjà vu, characteristic of patients with epilepsy and equivalent to an epileptic seizure, and "nonpathological-nonepileptic" déjà vu, which is characteristic of healthy people and psychological phenomenon.

No MeSH data available.


Related in: MedlinePlus