Source derivation in clinical routine EEG

Electroencephalography and Clinical Neurophysiology
G Wallin, E Stålberg

Abstract

A special multi-electrode derivation of the EEG signal was recently described by Hjorth (1975b). It is more selective than bipolar and common average reference derivations and is called source derivation. The present study aimed at testing the new method in routine EEG work and comparing the results with these obtained with conventional recording technique. EEGs were simultaneously recorded with the two techniques and visual and quantitative comparisons were made in 80 and 30 cases, respectively. Only in one EEG out of 80 was an abnormality detected in source, but not in conventional, derivations. In 25% of the records, however, focal abnormalities were somewhat more pronounced or epileptogenic potentials were sharper in source, than in conventional, derivations. It is concluded that the source derivation technique facilitates EEG interpretation in a significant number of cases.

References

Nov 1, 1975·Electroencephalography and Clinical Neurophysiology·B Hjorth
Jan 1, 1979·Pharmakopsychiatrie, Neuro-Psychopharmakologie·B Hjorth
Mar 1, 1973·Electroencephalography and Clinical Neurophysiology·B Hjorth
Sep 1, 1970·Electroencephalography and Clinical Neurophysiology·B Hjorth

❮ Previous
Next ❯

Citations

Jan 31, 1986·Documenta Ophthalmologica. Advances in Ophthalmology·J G Flanagan, G F Harding
Jan 1, 1988·Brain Topography·B Hjorth, E Rodin
Jan 1, 1989·Brain Topography·R BencivengaJ E Jan
Jan 1, 1996·Brain Topography·H YoshinagaS Ohtahara
Dec 1, 1982·Electroencephalography and Clinical Neurophysiology·B Hjorth
Nov 1, 1985·Electroencephalography and Clinical Neurophysiology·D J CrammondJ T Murphy
Apr 1, 1988·Electroencephalography and Clinical Neurophysiology·J PernierO Bertrand
Jul 1, 1989·Electroencephalography and Clinical Neurophysiology·E Rodin, D Cornellier
Jan 1, 1989·Electroencephalography and Clinical Neurophysiology·Z J KolesD R McLean
Jul 1, 1990·Electroencephalography and Clinical Neurophysiology·W A MacKay, M Bonnet
Nov 1, 1991·Electroencephalography and Clinical Neurophysiology·M S Lemos, B J Fisch
Jan 1, 1993·Electroencephalography and Clinical Neurophysiology·T D LagerlundN E Busacker
Sep 1, 1995·Electroencephalography and Clinical Neurophysiology·T D LagerlundK M Cicora
Feb 1, 1993·Journal of the Neurological Sciences·N NakatakeM Yasuhara
Jul 1, 1993·Electroencephalography and Clinical Neurophysiology·S K LawM J Eckardt
Jul 29, 1998·Neuroscience·P Achermann, A A Borbély
Jun 6, 2002·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Dezhong Yao
Jun 14, 2003·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Alison M MackayRuth Hamilton
May 1, 1997·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·M TinazziF Mauguière
Jan 9, 1999·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·T J O'BrienN E Busacker
Jul 26, 2003·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Terrence D LagerlundNeil E Busacker
May 1, 1992·Electroencephalography and Clinical Neurophysiology·T NagamineJ Kimura
Nov 1, 1985·Electroencephalography and Clinical Neurophysiology·R A ClementL A Jones
Jan 1, 1985·Electroencephalography and Clinical Neurophysiology·R A ClementG F Harding
Jul 1, 1984·Electroencephalography and Clinical Neurophysiology·G W ThickbroomH D Davies
Oct 1, 1996·Mayo Clinic Proceedings·T D LagerlundF W Sharbrough
Apr 1, 1987·IEEE Transactions on Bio-medical Engineering·F PerrinJ Pernier
Dec 1, 1983·The Australian and New Zealand Journal of Psychiatry·H G Stampfer
Jul 1, 1996·Clinical EEG (electroencephalography)·E Niedermeyer
Dec 3, 2014·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Udaya Seneviratne

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Electroencephalography and Clinical Neurophysiology
D M MacKay
Electroencephalography and Clinical Neurophysiology
R A ClementG F Harding
Electroencephalography and Clinical Neurophysiology
B Hjorth
© 2021 Meta ULC. All rights reserved