Objectives: Vivid and intrusive memories of extreme trauma can disrupt a stepwise approach to
imaginal exposure. Concurrent tasks that load the visuo-spatial sketchpad (VSSP) of working memory
reduce memory vividness during imaginal exposure. Such tasks may help maintain a progressive
exposure protocol while minimizing distress during treatment. The current study tested whether relief
of distress from a competing VSSP load during emotive imagery is at the cost of impaired
desensitization.
Design: This study examined repeated exposure to emotive memories using 18 unselected
undergraduates, using a within-subjects design.
Method: Participants recalled three positive and three negative self-related memories, and rated the
vividness and emotiveness of the image. Participants then received all three conditions (Eye
Movements; Visual Noise; Control) in a counterbalanced order. One positive and one negative
recollection were used for each condition. They then rated the vividness of the image and their
emotional response before proceeding to the next trial. There were 8 trials for each image. At a noninterference
session one week later, participants recalled each image, rating its vividness and their
emotional response.
Results: Consistent with previous research, vividness and distress during imaging were lower during
eye movements than in exposure alone, with passive visual interference giving intermediate results.
A small reduction in emotional responses a week later was of similar size for the three conditions
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