Exposure by Assessment: Effects of Daily AMQ-Based EMA of an Intrusive Trauma Memory in PTSD

Sponsor
Tel Aviv University
Study ID
NCT07658157
Status
Recruiting
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Conditions

Eligibility Criteria

Sex
ALL
Age
18 Years - 70 Years
Healthy Volunteers
Not accepted

Interventions

  • AMQ-based ecological momentary assessment of an intrusive memory — OTHER
    Participants allocated to this intervention will complete daily AMQ-based ecological momentary assessment (EMA) prompts for 10 days, focused on a personally identified intrusive traumatic memory. The target memory will be selected at the beginning of the trial. The EMA prompts will assess phenomenological and emotional characteristics of the memory, including features related to vividness, emotional intensity, nowness/reliving, and intrusiveness. This intervention is intended to examine whether repeated, low-burden assessment of an intrusive traumatic memory by the participant would be associated with changes in PTSD symptom severity.
  • AMQ-based ecological momentary assessment of an emotionally neutral memory — OTHER
    Participants allocated to this intervention will complete daily AMQ-based ecological momentary assessment (EMA) prompts for 10 days, focused on a personally identified neutral, non-intrusive autobiographical memory. The target memory will be selected at the beginning of the trial. The EMA prompts will be otherwise identical to those administered in the intrusive-memory arm and will assess phenomenological and emotional characteristics of the selected memory. This control intervention is intended to distinguish the effects of repeated memory-focused assessment in general from effects specific to repeated assessment of an intrusive traumatic memory.

Study Details

Intrusive re-experiencing is a hallmark of PTSD. The study applies ecological momentary assessment (EMA) of participants' trauma memories (active group) vs. EMA of a neutral memory (control group) to test whether the active intervention can reduce intrusive symptoms severity and overal PTSD symptom severity in general.

Key Dates

First listed
Jun 18, 2026
Start date
Jun 14, 2026
Status verified
Jun 2026
Primary completion
Oct 31, 2026
Completion
Jun 30, 2027

Study Design

Enrollment
50 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • Sham Comparator: Neutral Memory
    Participants allocated to this arm will complete AMQ-based ecological momentary assessments (EMAs) focused on an emotionally neutral memory identified at the beginning of the trial.
  • Active Comparator: Intrusive Memories
    Participants allocated to this arm will complete AMQ-based ecological momentary assessments (EMAs) focused on an intrusive memory identified at the beginning of the trial.

Primary Outcome Measure

Change from Baseline in Clinician-Rated PTSD Symptom Severity as Assessed by the CAPS-5 Total Severity Score at Post-Intervention and Follow-Up [ Time Frame: From baseline to post-intervention - 10 days; Follow-up data will be collected 15-30 days following the post-intervention assessment. ]

Central Contacts

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