Gamified Combined Cognitive Bias Modification in Adults Diagnosed With OCD: Randomized Controlled Trial

Summary

This randomized controlled trial examines the effects of a mobile-based gamified combined cognitive bias modification (CBM-C) intervention on obsessive-compulsive symptoms, obsessive beliefs, attentional and interpretation biases, depressive symptoms, and psychological distress. The gamified CBM-C condition is compared to a standard mobile-based CBM-C and a placebo control condition. All interventions are delivered via a mobile application. Assessments are conducted at baseline, post-intervention (week 4), and 3-month follow-up.

Eligibility

Inclusion Criteria:

* Age 18 years or older
* Primary diagnosis of obsessive-compulsive disorder (OCD), confirmed by a licensed clinician using the Structured Clinical Interview for DSM-5 (SCID-5)
* No current suicidal ideation or psychotic symptoms
* Access to the internet and a mobile phone
* Stable psychiatric medication use for at least one month prior to enrollment, with no changes in dosage during the 4-week intervention period
* No current neurological or medical condition that would interfere with participation
* Ability to perceive colored visual stimuli (e.g., no color blindness)
* Not currently enrolled in another intervention-based study
* Not receiving any other form of psychological treatment at the time of participation

Exclusion Criteria:

* Presence of active suicidal ideation or psychotic symptoms
* Unstable psychiatric medication use (e.g., recent dose change within the past month or expected change during the intervention period)
* Significant neurological or medical illness that may interfere with participation
* Visual impairments that would prevent accurate perception of colored stimuli (e.g., color blindness)
* Current participation in another clinical trial involving psychological intervention
* Receiving concurrent psychotherapy or other psychological treatments outside of the study

Conditions2

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