scholarly journals An Introduction to EEG Source Analysis with an Illustration of a Study on Error-Related Potentials

2014 ◽  
pp. 163-189 ◽  
Author(s):  
Marco Congedo ◽  
Sandra Rousseau ◽  
Christian Jutten
Keyword(s):  
Source Analysis ◽  
Eeg Source Analysis ◽  
Related Potentials

Subdural EEG in Frontal Lobe Epilepsy

2018 ◽  
pp. 312-325
Author(s):  
Akio Ikeda
Keyword(s):  
Frontal Lobe ◽  
Three Dimensional ◽  
Wide Band ◽  
Functional Mapping ◽  
Source Analysis ◽  
Frontal Lobe Epilepsy ◽  
Eeg Activity ◽  
Eeg Source Analysis ◽  
Readiness Potentials ◽  
Related Potentials

This chapter is concerned with the use of subdural EEG for location of the epileptogenic zone and for functional mapping in frontal lobe epilepsy (FLE), tasks that are both necessary before epilepsy surgery in various subtypes of FLE. It reviews clinical features of subtypes of FLE, individualized electrode arrays, and the recording and analysis of epileptiform abnormalities of ictal and interictal states. It then reviews the principles of functional mapping by cortical stimulation and by other methods, e.g. intrinsic EEG activity. Intrinsic EEG activity consists of Bereitschaftspotentials or readiness potentials, judgment-related potentials from pre-supplementary motor area (SMA), somatosensory evoked potentials from SMA proper and pre-SMA, and language-related potentials. It also reviews new methods such as event-related synchronization, event-related desynchronization, coherence analysis for functional mapping, wide-band EEG analysis of slow (DC) shifts and high-frequency oscillations, and three-dimensional EEG source analysis for epileptogenic mapping.

scholarly journals Flanker task-elicited Event Related Potential sources reflect human recombinant Erythropoietin differential effects on Parkinson’s patients

2019 ◽  
Author(s):  
Maria L Bringas Vega ◽  
Shengnan Liu ◽  
Min Zhang ◽  
Ivonne Pedroso Ibañez ◽  
Lilia M. Morales Chacon ◽  
...  
Keyword(s):  
Flanker Task ◽  
Reaction Times ◽  
Event Related Potential ◽  
Source Analysis ◽  
Random Allocation ◽  
Recombinant Erythropoietin ◽  
Human Recombinant Erythropoietin ◽  
Human Erythropoietin ◽  
Eeg Source Analysis ◽  
Eeg Recordings

AbstractWe used EEG source analysis to identify which cortical areas were involved in the automatic and controlled processes of inhibitory control on a flanker task and compared the potential efficacy of recombinant-human erythropoietin (rHuEPO) on the performance of Parkinson’ s Disease patients.The samples were 18 medicated PD patients (nine of them received rHuEPO in addition to their usual anti-PD medication through random allocation and the other nine patients were on their regular anti-PD medication only) and 9 age and education-matched healthy controls (HCs) who completed the flanker task with simultaneous EEG recordings. N1 and N2 event-related potential (ERP) components were identified and a low-resolution tomography (LORETA) inverse solution was employed to localize the neural generators.Reaction times and errors were increased for the incongruent flankers for PD patients compared to controls. EEG source analysis identified an effect of rHuEPO on the lingual gyri for the early N1 component. N2-related sources in middle cingulate and precuneus were associated with the inhibition of automatic responses evoked by incongruent stimuli differentiated PD and HCs.From our results rHuEPO, seems to mediate an effect on N1 sources in lingual gyri but not on behavioural performance. N2-related sources in middle cingulate and precuneus evoked by incongruent stimuli differentiated PD and HCs.

scholarly journals Attending to Eliza: rapid brain responses reflect competence attribution in virtual social feedback processing

2019 ◽  
Vol 14 (10) ◽  
pp. 1073-1086 ◽  
Author(s):  
Sebastian Schindler ◽  
Gregory A Miller ◽  
Johanna Kissler
Keyword(s):  
Online Communication ◽  
Event Related Potentials ◽  
Linear Increase ◽  
Source Analysis ◽  
Social Feedback ◽  
Feedback Processing ◽  
Early Posterior Negativity ◽  
Related Potentials ◽  
Content Processing ◽  
Socially Motivated

Abstract In the age of virtual communication, the source of a message is often inferred rather than perceived, raising the question of how sender attributions affect content processing. We investigated this issue in an evaluative feedback scenario. Participants were told that an expert psychotherapist, a layperson or a randomly acting computer was going to give them online positive, neutral or negative personality feedback while high-density EEG was recorded. Sender attribution affected processing rapidly, even though the feedback was on average identical. Event-related potentials revealed a linear increase with attributed expertise beginning 150 ms after disclosure and most pronounced for N1, P2 and early posterior negativity components. P3 and late positive potential amplitudes were increased for both human senders and for emotionally significant (positive or negative) feedback. Strikingly, feedback from a putative expert prompted large P3 responses, even for inherently neutral content. Source analysis localized early enhancements due to attributed sender expertise in frontal and somatosensory regions and later responses in the posterior cingulate and extended visual and parietal areas, supporting involvement of mentalizing, embodied processing and socially motivated attention. These findings reveal how attributed sender expertise rapidly alters feedback processing in virtual interaction and have implications for virtual therapy and online communication.

scholarly journals Generic head models for atlas-based EEG source analysis

2006 ◽  
Vol 27 (2) ◽  
pp. 129-143 ◽  
Author(s):  
Felix Darvas ◽  
John J. Ermer ◽  
John C. Mosher ◽  
Richard M. Leahy
Keyword(s):  
Source Analysis ◽  
Eeg Source Analysis

Dipole estimation errors due to differences in modeling anisotropic conductivities in realistic head models for EEG source analysis

2008 ◽  
Vol 53 (7) ◽  
pp. 1877-1894 ◽  
Author(s):  
Hans Hallez ◽  
Bart Vanrumste ◽  
Peter Van Hese ◽  
Steven Delputte ◽  
Ignace Lemahieu
Keyword(s):  
Source Analysis ◽  
Estimation Errors ◽  
Eeg Source Analysis ◽  
Dipole Estimation

scholarly journals Modeling of the human skull in EEG source analysis

2010 ◽  
Vol 32 (9) ◽  
pp. 1383-1399 ◽  
Author(s):  
Moritz Dannhauer ◽  
Benjamin Lanfer ◽  
Carsten H. Wolters ◽  
Thomas R. Knösche
Keyword(s):  
Source Analysis ◽  
Human Skull ◽  
Eeg Source Analysis
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