Event-related potentials and fields in response to positive and negative words.

<p>(<b>A</b>) Evoked potentials/fields (ERPs/ERMFs) during reading of positive (green) and negative (red) words. The graph displays the GP across all sensors for the EEG (left) and the MEG (right). The critical time intervals (P1, P2 and EPN) for the CDRs are shaded in gray. (<b>B</b>) Scalp/field distribution of sensor space activity in EEG and MEG, depicted separately for the positive (left) and negative (right) condition for three intervals of interest (top: P1, middle: P2, bottom: EPN). The red dots indicate EEG-electrodes (upper row), the green circles represent MEG sensors (lower row). Cooler colors indicate more negative-going potentials/fields, whereas warmer colors display more positive-going potentials/fields. (<b>C</b>) Scalp/field distribution of the scalp/field potential difference (activation for positive minus activation for negative words) in EEG and MEG, depicted for the three intervals of interest (top: P1, middle: P2, bottom: EPN).