Imaginal Exposure for Disordered Eating Related Fears: An Initial Randomized Controlled Trial.
Imaginal exposure lights up eating-disorder fears and boosts distress tolerance, yet without added tools it does not cut symptoms.
01Research in Context
What this study did
Vassos et al. (2023) ran the first test of imaginal exposure for people who fear foods, weight gain, or body changes.
They split young adults with disordered eating into two groups. One group listened to vivid fear scripts for 30 minutes. The other group did a control task.
Both groups kept their normal therapy. The team checked if the scary stories lowered eating symptoms and raised distress tolerance.
What they found
The stories worked as planned. Heart rate jumped and fear rose, showing the scripts hit core fears.
Distress tolerance went up in the exposure group. Yet eating symptoms dropped in both groups the same amount.
In short, imaginal exposure fired up fear and taught coping, but it did not beat the control on symptom reduction.
How this fits with other research
Kaufman et al. (2010) also ran a randomized trial with college students who had eating issues. They found ACT gave big symptom drops while cognitive therapy gave only small ones. Vassos et al. (2023) now shows even imaginal exposure gives no extra symptom drop. Together the two trials warn that activating fear alone may not cut eating symptoms.
Ahlborn et al. (2008) showed that repeated exposure plus response prevention drives tic reduction only after premonitory urges habituate across sessions. Vassos et al. (2023) saw fear activation but no habituation curve linked to symptom change. The pattern hints that without response prevention or enough reps, habituation stalls and symptoms stay flat.
Kellems et al. (2016) found that higher distress tolerance helps people stick to yoga only when body image and BMI line up right. Vassos et al. (2023) shows imaginal exposure can raise distress tolerance even when symptoms do not budge. The two studies fit: tolerance is trainable, yet you still need extra pieces to turn that skill into real-world symptom gains.
Why it matters
If you treat clients who fear food or weight gain, this study tells you to pair exposure with more tools. Add response prevention, values work, or meal coaching so the fear practice turns into daily eating change. Track urge intensity across sessions to see if habituation is happening. If it is not, add reps or new contingencies.
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02At a glance
03Original abstract
Exposure therapy has been investigated as a treatment for eating disorders, but prior research has largely neglected core fears underlying the disorder such as rejection, abandonment, disgust, and loss of control. We tested the feasibility and acceptability of using imaginal exposure to target disordered eating related fears by randomizing participants (N = 47) with disordered eating to: imaginal exposure (IE), imaginal exposure preceded by a brief food exposure (IE + Food), or an assessment control. Participants attended two in-person visits and completed pretreatment, posttreatment, and one-month follow-up questionnaires. IE was rated more acceptable than IE + Food. Retention was high across conditions. Habituation occurred for subjective distress and believability of feared outcomes, suggesting that imaginal exposure effectively activates core fears. Distress tolerance and confidence in ability to change improved. Disordered eating symptoms, fears, preoccupations, and rituals decreased in all conditions, indicating that IE was not specifically responsible for improvement.
Behavior modification, 2023 · doi:10.1177/01454455221091783