TY - JOUR
T1 - Interactions between frontal and posterior oscillatory dynamics support adjustment of stimulus processing during reinforcement learning
AU - van de Vijver, Irene
AU - van Driel, Joram
AU - Hillebrand, Arjan
AU - Cohen, Michael X
N1 - With supplementary data
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Reinforcement learning (RL) in humans is subserved by a network of striatal and frontal brain areas. The electrophysiological signatures of feedback evaluation are increasingly well understood, but how those signatures relate to the use of feedback to guide subsequent behavioral adjustment remains unclear. One mechanism for post-feedback behavioral optimization is the modulation of sensory processing. We used source-reconstructed MEG to test whether feedback affects the interactions between sources of oscillatory activity in the learning network and task-relevant stimulus-processing areas. Participants performed a probabilistic RL task in which they learned associations between colored faces and response buttons using trial-and-error feedback. Delta-band (2-4 Hz) and theta-band (4-8 Hz) power in multiple frontal regions were sensitive to feedback valence. Low and high beta-band power (12-20 and 20-30 Hz) in occipital, parietal, and temporal regions differentiated between color and face information. Consistent with our hypothesis, single-trial power-power correlations between frontal and posterior-sensory areas were modulated by the interaction between feedback valence and the relevant stimulus characteristic (color versus identity). These results suggest that long-range oscillatory coupling supports post-feedback updating of stimulus processing.
AB - Reinforcement learning (RL) in humans is subserved by a network of striatal and frontal brain areas. The electrophysiological signatures of feedback evaluation are increasingly well understood, but how those signatures relate to the use of feedback to guide subsequent behavioral adjustment remains unclear. One mechanism for post-feedback behavioral optimization is the modulation of sensory processing. We used source-reconstructed MEG to test whether feedback affects the interactions between sources of oscillatory activity in the learning network and task-relevant stimulus-processing areas. Participants performed a probabilistic RL task in which they learned associations between colored faces and response buttons using trial-and-error feedback. Delta-band (2-4 Hz) and theta-band (4-8 Hz) power in multiple frontal regions were sensitive to feedback valence. Low and high beta-band power (12-20 and 20-30 Hz) in occipital, parietal, and temporal regions differentiated between color and face information. Consistent with our hypothesis, single-trial power-power correlations between frontal and posterior-sensory areas were modulated by the interaction between feedback valence and the relevant stimulus characteristic (color versus identity). These results suggest that long-range oscillatory coupling supports post-feedback updating of stimulus processing.
KW - Adolescent
KW - Adult
KW - Beamforming
KW - Brain Waves/physiology
KW - Cerebellum/diagnostic imaging
KW - Cerebral Cortex/diagnostic imaging
KW - Color Perception/physiology
KW - Facial Recognition/physiology
KW - Feedback, Psychological/physiology
KW - Female
KW - Functional Neuroimaging/methods
KW - Humans
KW - MEG
KW - Magnetic Resonance Imaging
KW - Magnetoencephalography/methods
KW - Male
KW - Oscillations
KW - Power-power correlations
KW - Reinforcement (Psychology)
KW - Reinforcement learning
KW - Young Adult
UR - http://www.scopus.com/inward/record.url?scp=85049611676&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85049611676&partnerID=8YFLogxK
UR - https://pure.uva.nl/ws/files/67237041/1_s2.0_S1053811918306268_mmc1.pdf
U2 - https://doi.org/10.1016/j.neuroimage.2018.07.014
DO - https://doi.org/10.1016/j.neuroimage.2018.07.014
M3 - Article
C2 - 29990582
SN - 1053-8119
VL - 181
SP - 170
EP - 181
JO - NEUROIMAGE
JF - NEUROIMAGE
ER -