11 Dokumente gefunden

Modeling and measuring the effects of individually optimized multi-channel transcranial direct current stimulation on the…

Die transkranielle Gleichstromstimulation (tDCS) ist eine nicht-invasive Technik zur Neuro-Modulation, bei der schwache Ströme durch Elektroden auf der Kopfhaut gesendet werden, um vorübergehend Eigenschaften des Gehirns zu verändern. Durch die gezielte Beeinflussung bestimmter kortikaler Bereiche haben…

Identification of causal structure-function relationships in the human motor cortex with non-invasive brain stimulation

Transkranielle Magnetstimulation (TMS) ist ein nicht-invasives Hirnstimulationsverfahren, das im Klinik- und im Forschungsalltag eingesetzt wird, um kausale Struktur-Funktions-Beziehungen im menschlichen Gehirn zu identifizieren. Mittels eines induzierten elektrischen Feldes wird durch Depolarisierung…

Individually optimized multi-channel tDCS for targeting somatosensory cortex

Objective - Transcranial direct current stimulation (tDCS) is a non-invasive neuro-modulation technique that delivers current through the scalp by a pair of patch electrodes (2-Patch). This study proposes a new multi-channel tDCS (mc-tDCS) optimization method, the distributed constrained maximum intensity…
Amsterdam [u.a.]: Elsevier Science, 2021-12-01

The effect of experimental and modeling parameters on combined EEG/MEG source analysis and transcranial electric stimulation…

Neue experimentelle und modellierende Parameter werden eingeführt, um die Auswirkungen auf die kombinierte Elektroenzephalographie (EEG) und Magnetenzephalographie (MEG) zu untersuchen - EMEG-Quellenanalyse und Optimierung der transkraniellen elektrischen Stimulation (TES) von somatosensorisch evozierter…

The effect of stimulation type, head modeling, and combined EEG and MEG on the source reconstruction of the somatosensory…

Modeling and experimental parameters influence the Electro‐ (EEG) and Magnetoencephalography (MEG) source analysis of the somatosensory P20/N20 component. In a sensitivity group study, we compare P20/N20 source analysis due to different stimulation type (Electric‐Wrist [EW], Braille‐Tactile [BT], or…
New York, NY: Wiley-Liss, 2019-08-09

Skull defects in finite element head models for source reconstruction from magnetoencephalography signals

Magnetoencephalography (MEG) signals are influenced by skull defects. However, there is a lack of evidence of this influence during source reconstruction. Our objectives are to characterize errors in source reconstruction from MEG signals due to ignoring skull defects and to assess the ability of an…
Ilmenau: ilmedia, 2016-07-06

Combined EEG/MEG can outperform single modality EEG or MEG source reconstruction in presurgical epilepsy diagnosis

We investigated two important means for improving source reconstruction in presurgical epilepsy diagnosis. The first investigation is about the optimal choice of the number of epileptic spikes in averaging to (1) sufficiently reduce the noise bias for an accurate determination of the center of gravity…
Lawrence, Kanada / San Francisco, Calif.: PLOS, 2015-03-11

Recent advances in modeling and analysis of bioelectric and biomagnetic sources

Determining the centers of electrical activity in the human body and the connectivity between different centers of activity in the brain is an active area of research. To understand brain function and the nature of cardiovascular diseases requires sophisticated methods applicable to non-invasively measured…
Berlin [u.a.]: de Gruyter, 2010-03-31