Paper published in a book (Scientific congresses and symposiums)
Decoding spontaneous brain activity from fMRI using Gaussian Processes: tracking brain reactivation
Schrouff, Jessica; Kussé, Caroline; Wehenkel, Louis et al.
2012In 2012 Second International Workshop on Pattern Recognition in NeuroImaging (PRNI 2012): proceedings
Peer reviewed
 

Files


Full Text
4765a061.pdf
Publisher postprint (332.14 kB)
Proceedings
Download
Annexes
slides_PRNI_OK.pdf
(627.67 kB)
Slides
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
brain decoding; fMRI; spontaneous activity; memory consolidation
Abstract :
[en] While Multi-Variate Pattern Analysis techniques based on machine learning have now been regularly applied to neuroimaging data, decoding brain activity is usually performed in highly controlled experimental paradigms. In more realistic conditions, the number, sequence and duration of mental states are unpredictably generated by the individual, resulting in complex and imbalanced fMRI data sets. Moreover, in the case of spontaneous brain activity, the mental states can not be linked to any external or internal stimulation, which makes it a highly difficult condition to decode. This study tests the classification of brain activity, acquired on 14 volunteers using fMRI, during mental imagery, a condition in which the number and duration of mental events were not externally imposed but self-generated. Application of the obtained model on rest sessions allowed classifying spontaneous brain activity linked to the task which, overall, correlated with their behavioural performance to the task.
Research center :
GIGA CRC (Cyclotron Research Center) In vivo Imaging-Aging & Memory - ULiège
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Schrouff, Jessica ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Kussé, Caroline ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Wehenkel, Louis  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Maquet, Pierre  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Phillips, Christophe  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Language :
English
Title :
Decoding spontaneous brain activity from fMRI using Gaussian Processes: tracking brain reactivation
Publication date :
03 July 2012
Event name :
2nd International Workshop on Pattern Recognition in NeuroImaging (PRNI 2012)
Event place :
London, United Kingdom
Event date :
from 02-07-2012 to 04-07-2012
Audience :
International
Main work title :
2012 Second International Workshop on Pattern Recognition in NeuroImaging (PRNI 2012): proceedings
Publisher :
IEEE Computer Society Conference Publishing Services, Los Alamitos, United States - California
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Laboratórios Bial [PT]
PAI/IAP Interuniversity Pole of Attraction
ULg FSR - Université de Liège. Fonds spéciaux pour la recherche [BE]
FMRE - Fondation Médicale Reine Elisabeth [BE]
Available on ORBi :
since 30 September 2012

Statistics


Number of views
110 (18 by ULiège)
Number of downloads
259 (8 by ULiège)

Scopus citations®
 
3
Scopus citations®
without self-citations
2
OpenCitations
 
1

Bibliography


Similar publications



Contact ORBi