Anxiety, emotional distraction, and attentional control in the Stroop task.
Using a Stroop task, we investigated the effect of task irrelevant emotional distractors on attentional proactive control and its interaction with trait anxiety. On the basis of recent findings showing opposed neural responses in the dorsal executive versus the ventral emotional systems in response to emotional distractors and of the attentional control theory (Eysenck, Derakshan, Santos, Calvo, 2007) we hypothesized that negative distractors will result in a reduction of proactive task control in the executive system, especially for high trait anxious individuals. Using a computational model of the Stroop task, we derive 2 specific behavioral predictions of reduced proactive task control: increased Stroop interference and reversed Stroop facilitation. Twenty five high and 25 low trait anxious participants completed a Stroop task in which the target stimuli were preceded by brief (neutral vs. aversive) emotional distractors. While no effects of picture valence on proactive control was found in the low anxious group, the predicted signatures of reduced proactive control were observed in the high anxiety group. These results indicate that trait anxiety influences the interaction between irrelevant emotional stimuli and proactive control.
Emotion