Reward feedback processing in children and adolescents: Medial frontal theta oscillations |
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| Affiliation: | 1. Neurobehavioral Research Laboratory, VA New Jersey Heath Care System, East Orange, NJ 07018, USA;2. Rutgers-Graduate School of Biomedical and Health Science, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA;3. Stress and Motivated Behavior Institute (SMBI), Department of Neurology and Neurosciences, Rutgers-New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA |
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| Abstract: | We examined event-related electroencephalography (EEG) oscillations, including event-related spectral perturbations (ERSP) and intertrial coherence (ITC), to compare feedback processing during a chance-based reward vs. non-reward task in groups of 10–12-year-old (n = 42), 13–14-year-old (n = 34) and 15–17-year-olds (n = 32). Because few, if any studies have applied these analytic methods to examine feedback processing in children or adolescents, we used a fine-grained approach that explored one half hertz by 16 ms increments during feedback (no win vs. win events) in the theta (4–8 Hz) frequency band. Complex wavelet frequency decomposition revealed that no win feedback was associated with enhanced theta power and phase coherence. We observed condition and age-based differences for both ERSP and ITC, with stronger effects for ITC. The transition from childhood to early adolescence (13–14 yrs.) was a point of increased differentiation of ITC favoring no win vs. wins feedback and also compared to children or older adolescents, a point of heightened ITC for no win feedback (quadratic effect). |
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| Keywords: | Theta oscillations Reward Adolescence Event-related spectral analysis Inter-trial phase coherence |
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