Efficacy of Cognitive Bias Modification Itervention in Young Adult With Social Anxiety
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- 入组人数
- 130
- 试验地点
- 1
- 主要终点
- short version of the Spielberger State-Trait Anxiety Inventory
研究概览
简要总结
This randomized, single-blind trial tests whether one session of interpretation bias modification reduces immediate social-evaluative anxiety and shifts interpretation bias in Pakistani university students aged 18 to 25 years with elevated social anxiety. Participants are assigned to either feedback-contingent interpretation bias modification or a structurally matched interpretation control condition. Primary and secondary outcomes are assessed before and after the intervention session using short-form state-trait anxiety measures and Word-Sentence Association Paradigm endorsement indices.
详细描述
Social anxiety in young adults is maintained in part by a tendency to interpret ambiguous social information as threatening. The study evaluates a behavioral interpretation training procedure delivered with OpenSesame, using trial-by-trial responses to ambiguous social sentences preceded by threat or benign prime words. In the experimental arm, feedback contingently reinforces benign endorsements and threat rejections. In the control arm, exposure and timing are matched but feedback is noncontingent and presented on half of trials. The design is a parallel two-arm randomized pretest-posttest trial with participant masking to assignment. Assessment includes the 5-item state and 5-item trait short-form State-Trait Anxiety Inventory totals and Word-Sentence Association Paradigm threat and benign endorsement proportions. The mechanistic hypothesis is that feedback-consistent learning increases benign interpretations and reduces threat interpretations, which is associated with lower post-session state anxiety. The trial was conducted as part of a PhD thesis at the University of Gujrat under formal institutional approvals.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Participant)
盲法说明
Participants are unaware of arm assignment.
入排标准
- 年龄范围
- 18 Years 至 25 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •age 18 to 25 years
- •Social Phobia Inventory score greater than 19
- •at least moderate severity on the DSM-5-TR Severity Measure for Social Anxiety Disorder-Adult
- •able to read study materials
- •provides written informed consent.
排除标准
- •clinically elevated depressive symptoms on Beck Depression Inventory-II at or above prespecified cutoff [above 16]
- •clinically elevated general anxiety symptoms on the Beck Anxiety Inventory at or above prespecified cutoff [ above 20]
- •current medical or psychiatric condition likely to interfere with safe or valid participation
- •prior participation in this trial.
研究组 & 干预措施
Interpretation Bias Modification
Single-session Word-Sentence Association Paradigm training with performance-contingent feedback across 220 trials in two 110-trial blocks; each block includes 70 social ambiguity trials and 40 non-social fillers. Correct feedback follows benign endorsement or threat rejection; incorrect feedback follows threat endorsement or benign rejection.
干预措施: WSAP-based interpretation bias modification (Behavioral)
Interpretation Control Condition
Matched Word-Sentence Association Paradigm exposure with identical stimulus timing and response demands, feedback delivered on 50 percent of trials without contingency, favoring benign over threat interpretations.
干预措施: WSAP interpretation control condition (Behavioral)
结局指标
主要结局
short version of the Spielberger State-Trait Anxiety Inventory
时间窗: Baseline (pre-intervention, same visit) and immediate post-intervention after the single-session training (same visit, approximately 30 to 60 minutes after intervention)
The primary outcome is within-participant change in state anxiety measured with the 5-item short-form State-Trait Anxiety Inventory state subscale (STAIS-5). Items are summed to a total score, with higher scores indicating greater state anxiety. The primary comparison is the between-group difference in change score (IBM versus ICC).
Spielberger short-form State-Trait Anxiety Inventory (S-STAI)
时间窗: Baseline pre-intervention and immediate post-intervention in the same visit (approximately 30 to 60 minutes after training starts).
Difference between post-session and baseline STAIS-5 total score; higher scores indicate greater state anxiety.
次要结局
- Change in Word-Sentence Association Paradigm threat endorsement rate.(Baseline pre-intervention and immediate post-intervention in the same visit.)
研究者
Ather Mujitaba
PhD Scholar
University of Gujrat