Although we did not find a typical pattern of mood-congruent attentional bias, the high dysphoria group uniquely displayed two effects: A significant emotion modulation in the contrast between happy and fearful faces, not present in the low dysphoria group, and a significant left-sided increase of N170 amplitude compared to the low dysphoria group, present for all expressions, included the neutral faces, albeit it only approached significance for sad faces.
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Spatiotemporal Dynamics of Covert vs. Overt Emotional Face Processing in Dysphoria.
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Between groups, pairwise contrasts showed that there was significantly greater voltage amplitude in the N170 time window for the High dysphoria group relative to the Low dysphoria group for all expressions (with the sad faces approaching significance) with negative clusters with a scalp distribution over the left lateral inferior temporoparietal scalp (see Table 2 and Figure 3 ).