Spectral and integral temporal analysis of evoked brain potentials in epileptics

Gnezditskii, V. V.; Erokhina, L G; Koptelov, Yu. M.; Shchekut’ev, G. A.

doi:10.1007/bf01189316

Cited by 2 publications

(5 citation statements)

References 2 publications

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“…The signals were amplified and fed into computer via a digitizer. They were analyzed with the help of EEG-processing soft-ware [1]. T o determine the location of the bioelectrical activity sources, the rectangular reference system was used, in which x, y, and z axes were directed along, respectively, 1) the line going from the occipital tuber to the nose bridge, 2) the line connecting the external auditory meatuses and 3) the vertical line directed from basis to vertex.…”

Section: Methodsmentioning

confidence: 99%

“…T o determine the location of the bioelectrical activity sources, the rectangular reference system was used, in which x, y, and z axes were directed along, respectively, 1) the line going from the occipital tuber to the nose bridge, 2) the line connecting the external auditory meatuses and 3) the vertical line directed from basis to vertex. The coordinates of the bioelectrical activity sources were calculated with the help of algorithms described elsewhere [1].…”

Section: Methodsmentioning

confidence: 99%

“…In fact, the recording of EEG from 12-16 channels provides localization of only one generator. However, if the bioelectrical activity recorded in EEG originates from two or more generators, the three-dimensional model results in only some average distribution of electric activity sources, which does not clearly show the locations of the corresponding generators [1]. According to the theory of generator and system mechanisms [4], the generator corresponding to trigeminal neuralgia and located in the brainstem nuclei of the trigeminal system, can induce formation of secondary pathological generators at higher cerebral levels.…”

Section: Bulletin O F Experimental Biology and Medicine N ~ -9 1997mentioning

confidence: 98%

“…There are only occasional studies analyzing spontaneous cerebral bioelectrical activity under these pathological conditions [7]. The modern computerized technique of electroencephalogram (EEG) processing makes it possible to perform simultaneous multichannel recording and processing of EEG with the help of spectral and correlation analyses, as well as m determine the three-dimensional location of the EEGrevealed sources of pathological activity [1]. The aim of this work was to analyze EEG variations using modern computerized techniques in order to identify pathophysiological mechanisms in patients with various forms of trigeminal pathology.…”

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confidence: 99%

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Pathological forms of brain electrical activity and localization of its sources in patients with trigeminal neuralgia

et al. 1997

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No significant differences from the typical electroencephalogram were observed in patients with trigeminal neuropathy. In patients with typical trigeminal neuralgia, the electroencephalogram variations were detected both in the changes of dominant activity and ha the appearance of individual pathological phenomena. The three-dimensional localization of pathological activity generators points to the involvement of the median nonspecific brainstem structures into pathological process evoked by trigeminal neuralgia.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Bulletin O F Experimental Biology and Medicine N ~ -9 1997mentioning

confidence: 98%

mentioning

confidence: 99%

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Pathological forms of brain electrical activity and localization of its sources in patients with trigeminal neuralgia

et al. 1997

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“…КВП отражают процессы возникновения произвольного внимания, ориентировочной реакции, возрастания неопределенности ожи даемой ситуации, опознания и принятия реше ния, а также связаны с процессами обучения и функционирования рабочей и долговремен ной памяти [6,18].…”

Section: материал и методыunclassified

Prospects of using event-related potentials in medical examination of military mental disorders

Volodarskaya,

Lobachev,

Marchenko

et al. 2023

Med.-biol. soc.-psihol. probl. bezop. črezvyčajnyh situac.

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Relevance. Considering the demand for additional efficient methods among clinicians to assess military mental health, instrumental methods, including psychophysiological and neuropsychological tools, providing objectifying detection of mental disorders (MD) are of particular importance. Event-related potentials (ERP) are a promising additional method of objectification of psychopathological manifestations, allowing to obtain neurophysiological parameters for processes associated with arbitrary attention, identification and decision-making.Objective. The study provides a generalized analysis of contemporary investigations and research outcomes regarding event-related potentials as a diagnostic tool for mental disorders, its diagnostic and prognostic potential in medical examination of military mental disorders.Methods. To assess the ERP diagnostic informative value, we analyzed over 40 scientific studies published within the last 10 years dealing with event-related potentials and their implementation in MDs, various brain structure damages and associated functional disorders. We also summarized the results of applying this method to study patients’ cognitive abilities and integrative functions.Results and discussion. Our analysis of scientific studies shows that the ERP value differs significantly for various MDs, such as: schizophrenic spectrum disorders, affective disorders, or addictive pathology. The conclusion suggests that the assessment of the parameters associated with various ERP modifications can improve objectivity of diagnostic and prognostic outcomes in military mental disorders.Conclusion. Event-related potentials is a promising method of diagnostic significance to assess severity of perception, attention, short-term memory damage, as well as cognitive disorders. ERP can help determine the boundary values and diagnostic criteria, as well as evaluate treatment efficiency and outcomes in military mental disorders. Moreover, ERP could be a promise as an additional research method to objectify MDs in mental state assessment of the military at military medical examination.

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Spectral and integral temporal analysis of evoked brain potentials in epileptics

Cited by 2 publications

References 2 publications

Pathological forms of brain electrical activity and localization of its sources in patients with trigeminal neuralgia

Pathological forms of brain electrical activity and localization of its sources in patients with trigeminal neuralgia

Prospects of using event-related potentials in medical examination of military mental disorders

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