TY - JOUR
T1 - Beta oscillations and reward processing
T2 - Coupling oscillatory activity and hemodynamic responses
AU - Mas-Herrero, Ernest
AU - Ripollés, Pablo
AU - HajiHosseini, Azadeh
AU - Rodríguez-Fornells, Antoni
AU - Marco-Pallarés, Josep
N1 - Funding Information:
The present project has been funded by the Spanish Government ( MINECO Grants PSI2012-37472 to J.M.P., PSI2011-29219 to A.R.F., FPI program BES-2010-032702 to E.M.-H. and FPU program AP2010-4179 to P.R.). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
PY - 2015/10/1
Y1 - 2015/10/1
N2 - Diverse cortical and subcortical regions are synergically engaged during reward processing. Previous studies using time-frequency decomposition of Electroencephalography (EEG) data have revealed an increase of mid-frontal beta oscillatory activity (BOA) after reward delivery, which could be a potential mechanism in the coordination of the different areas engaged during reward processing. In order to evaluate this hypothesis, twenty subjects performed a monetary gambling paradigm in two separate sessions (EEG and fMRI). Time-frequency oscillatory EEG data and fMRI activity were fused using Joint Independent Component Analysis (ICA). The present results showed that mid-frontal BOA elicited by monetary gains is associated with the engagement of a fronto-striatal-hippocampal network previously involved in reward-related memory enhancement, supporting the role of this activity during reward processing.
AB - Diverse cortical and subcortical regions are synergically engaged during reward processing. Previous studies using time-frequency decomposition of Electroencephalography (EEG) data have revealed an increase of mid-frontal beta oscillatory activity (BOA) after reward delivery, which could be a potential mechanism in the coordination of the different areas engaged during reward processing. In order to evaluate this hypothesis, twenty subjects performed a monetary gambling paradigm in two separate sessions (EEG and fMRI). Time-frequency oscillatory EEG data and fMRI activity were fused using Joint Independent Component Analysis (ICA). The present results showed that mid-frontal BOA elicited by monetary gains is associated with the engagement of a fronto-striatal-hippocampal network previously involved in reward-related memory enhancement, supporting the role of this activity during reward processing.
KW - Beta oscillations
KW - FMRI
KW - JointICA
KW - Reward
KW - Time-frequency
UR - http://www.scopus.com/inward/record.url?scp=84936885526&partnerID=8YFLogxK
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U2 - 10.1016/j.neuroimage.2015.05.095
DO - 10.1016/j.neuroimage.2015.05.095
M3 - Article
C2 - 26070260
AN - SCOPUS:84936885526
SN - 1053-8119
VL - 119
SP - 13
EP - 19
JO - NeuroImage
JF - NeuroImage
ER -