Déjà vu phenomenon-related EEG pattern. Case report.

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).

[Evoked skin sympathetic potentials and electroencephalography in the differential diagnosis of temporal and frontal epilepsy].

An aim of the study was to investigate indices of autonomous regulation (evoked skin sympathetic potentials--ESSP) and EEG in temporal and frontal epilepsy (TE and FE) before and after functional tests (physical, psychoemotional, hyperventilation). The study included 24 patients with TE, 20 patients with FE and 20 healthy controls. The enhance of sympathetic component of reaction was seen in FE and that of parasympathetic component--in TE.

Pathophysiological aspects of the formation of neurological deficit in multiple sclerosis.

The results of complex studies were used to formulate a concept of the development of neurological impairments in multiple sclerosis (MS). Acutely developing impairments to spike propagation, reaching the level of conduction blockade, due to the active pathological process with demyelinating and axonal damage to the CNS lead to the formation of neurological impairments in exacerbations of MS, while complete or partial reversion (regression) of these symptoms in the stage of remission results from compensatory changes in the nature of conduction, which were not, however, accompanied by recovery of electrophysiological measures. The development of stable neurological deficit in secondary-progressive MS is determined by impairments to spike conduction processes associated with significant levels of demyelination and atrophic changes in the CNS, with myelin loss and axon death.

[Compressive-spectral analysis of EEG in patients with panic attacks in the context of different psychiatric diseases].

Panic disorders (PD) which develop in the context of different psychiatric diseases (neurotic, personality disorder and schizotypal disorders) have their own clinical and neurophysiological features. The results of compressive-spectral analysis of EEG (CSA EEG) in patients with panic attack were different depending on the specifics of initial psychiatric status. EEG parameters in patients differed from those in controls.