Difficulty Disengaging from Threat in Anxiety: Preliminary Evidence for Delayed Response Execution

High anxiety is associated with an attentional bias for threatening information that appears to be the result of difficulty disengaging attention from such stimuli. However, it is yet unknown whether difficulty disengaging, often detected using the probe detection task, results from delayed shifting of visual attention or from interference in executing a behavioral response. The present study tested this distinction by measuring reaction times and eye movements of 30 high trait anxious (HTA) and 28 low trait anxious (LTA) individuals during completion of a probe detection task involving 500 ms presentation of threatening, positive, and neutral images. Difficulty disengaging was detected in the HTA group only for both positive and threatening images. Eye movement results did not show that HTA individuals experience delays in shifting visual attention away from an affective stimulus, thus providing preliminary evidence that difficulty disengaging in the probe detection task is likely a result of delays in decisionmaking and/or manual response execution. © Copyright 2012 Textrum Ltd. All rights reserved.