Limits...
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

Patient D., 29 years. A DV episode, general view (10 μV; 5 mm/s).
© Copyright Policy - CC BY-NC-SA
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4150674&req=5

f0020: Patient D., 29 years. A DV episode, general view (10 μV; 5 mm/s).

Mentions: The amplitude of the slow and sharp waves gradually increased up to 200 mV as the episode began. Epileptiform activity predominated in the right temporal lobe. The recruitment phenomenon was registered (Fig. 3). Fig. 4 shows a perspective view of the patient's seizure. The total duration of the seizure was 32 s. The pathological activity lasted for a total of 32 s, after which it was replaced by background activity.


Déjà vu phenomenon-related EEG pattern. Case report.

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

Patient D., 29 years. A DV episode, general view (10 μV; 5 mm/s).
© Copyright Policy - CC BY-NC-SA
Related In: Results  -  Collection

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

f0020: Patient D., 29 years. A DV episode, general view (10 μV; 5 mm/s).
Mentions: The amplitude of the slow and sharp waves gradually increased up to 200 mV as the episode began. Epileptiform activity predominated in the right temporal lobe. The recruitment phenomenon was registered (Fig. 3). Fig. 4 shows a perspective view of the patient's seizure. The total duration of the seizure was 32 s. The pathological activity lasted for a total of 32 s, after which it was replaced by background activity.

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