Frontal theta/delta oscillations

Contributed by johannes.algermissen on Oct. 1, 2021

Collection: Biased credit assignment in motivational learning biases arises through prefrontal influences on striatal learning

Description: Parametric regressor: trial-by-trial frontal (wide ROI; t-weighted mean of channels AF3/ AF4/ AF7/ AF8/ F1/ F2/ F3/ F4/ F5/ F6/ F7/ F8/ FC1/ FC2/ FC3/ FC4/ FC5/ FC6/ FCz/ Fp1/ Fp2/ Fpz/ Fz) theta/delta oscillations (225–475 ms relative to outcome onset, 1 - 8 Hz) measured using scalp EEG. This theta response is significantly higher for negative outcomes (no rewards/ punishments) than positive outcomes (rewards/ no punishments). This regressor is added on top of GLM2 regressors (featuring 8 outcome x response regressors plus standard prediction errors and the difference term to biased prediction errors), yielding GLM3B. Motivational Go/NoGo task (Swart et al., 2017; 2018; van Nuland et al., 2020).

Tags: learning eeg frontal theta oscillations punishment

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