Arne Ewald
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Explore the profile of Arne Ewald including associated specialties, affiliations and a list of published articles.
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Articles
11
Citations
143
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Recent Articles
1.
Zagorchev L, Hyde D, Li C, Wenzel F, Flaschner N, Ewald A, et al.
Neuroimage
. 2024 Feb;
289:120542.
PMID: 38369167
MRI-guided neuro interventions require rapid, accurate, and reproducible segmentation of anatomical brain structures for identification of targets during surgical procedures and post-surgical evaluation of intervention efficiency. Segmentation algorithms must be...
2.
Zagorchev L, Brueck M, Flaschner N, Wenzel F, Hyde D, Ewald A, et al.
IEEE Trans Biomed Eng
. 2020 Aug;
68(1):267-275.
PMID: 32746029
Objective: Electrical source imaging of brain activity is most accurate when using individualized bioelectric head models. Constructing these models requires identifying electrode positions on the scalp surface. Current methods such...
3.
Haufe S, Ewald A
Brain Topogr
. 2016 Jun;
32(4):625-642.
PMID: 27255482
Due to its high temporal resolution, electroencephalography (EEG) is widely used to study functional and effective brain connectivity. Yet, there is currently a mismatch between the vastness of studies conducted...
4.
Shahbazi F, Ewald A, Nolte G
Neuroimage
. 2015 Mar;
112:299-309.
PMID: 25746153
MUltiple SIgnal Classification (MUSIC) is a standard localization method which is based on the idea of dividing the vector space of the data into two subspaces: signal subspace and noise...
5.
Ewald A, Avarvand F, Nolte G
Neuroimage
. 2014 Jul;
101:610-24.
PMID: 25038442
We introduce a novel method to estimate bivariate synchronization, i.e. interacting brain sources at a specific frequency or band, from MEG or EEG data robust to artifacts of volume conduction....
6.
Shahbazi F, Ewald A, Nolte G
J Neurosci Methods
. 2014 Jul;
233:177-86.
PMID: 24975293
Considering that many biological systems including the brain are complex non-linear systems, suitable methods capable of detecting these non-linearities are required to study the dynamical properties of these systems. One...
7.
Sonnleitner A, Treder M, Simon M, Willmann S, Ewald A, Buchner A, et al.
Accid Anal Prev
. 2013 Oct;
62:110-8.
PMID: 24144496
Driver distraction is responsible for a substantial number of traffic accidents. This paper describes the impact of an auditory secondary task on drivers' mental states during a primary driving task....
8.
Ewald A, Avarvand F, Nolte G
Biomed Tech (Berl)
. 2013 Feb;
58(2):165-78.
PMID: 23435095
The investigation of functional neuronal synchronization has recently become a growing field of research. With high temporal resolution, electroencephalography and magnetoencephalography are well-suited measurement techniques to identify networks of interacting...
9.
Avarvand F, Ewald A, Nolte G
Comput Math Methods Med
. 2012 Aug;
2012:402341.
PMID: 22919429
To address the problem of mixing in EEG or MEG connectivity analysis we exploit that noninteracting brain sources do not contribute systematically to the imaginary part of the cross-spectrum. Firstly,...
10.
Ewald A, Aristei S, Nolte G, Abdel Rahman R
Front Psychol
. 2012 Jun;
3:166.
PMID: 22701106
In the present study we investigate the communication of different large scale brain sites during an overt language production task with state of the art methods for the estimation of...