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Efficacy of Attention Bias Modification vs. Placebo for Social Anxiety Disorder

2026년 6월 18일 업데이트: Yair Bar-Haim, Tel Aviv University

Placebo Effects in Dot-Probe Attention Bias Modification (ABM) Among Adults With Social Anxiety Disorder.

This study examines whether a computerized attention-training intervention called attention bias modification (ABM) can reduce symptoms of social anxiety disorder (SAD) in adults, and whether symptom improvement is specifically related to changes in attentional processing or to nonspecific factors such as expectancy and placebo effects.

연구 개요

상태

모병

정황

개입 / 치료

상세 설명

This study examines whether a computerized attention-training intervention called attention bias modification (ABM) can reduce symptoms of social anxiety disorder (SAD) in adults, and whether symptom improvement is specifically related to changes in attentional processing or to nonspecific factors such as expectancy and placebo effects.

Social Anxiety Disorder is characterized by persistent fear of social situations and negative evaluation by others. Previous research suggests that individuals with SAD tend to direct their attention toward socially threatening information, such as angry facial expressions. ABM was developed to reduce these attentional biases by training individuals to shift attention away from threat-related stimuli. However, findings regarding the clinical efficacy of ABM have been mixed, and some studies suggest that symptom improvement may also result from placebo-related factors, including treatment expectancy and engagement with the intervention.

In this randomized controlled trial, 90 adults diagnosed with Social Anxiety Disorder will be assigned to one of three study conditions: (1) active dot-probe ABM training, (2) placebo computerized training, or (3) a wait-list control group. Participants in the active and placebo training groups will complete eight computerized training sessions over four weeks.

The study will assess changes in social anxiety symptoms before and after the intervention using clinical interviews, self-report questionnaires, and computerized attention tasks. In addition, the study will examine attention bias and attention bias variability (ABV), using both reaction-time-based and eye-tracking-based measures, to better understand changes in attentional processing over time. Treatment expectancy and perceived credibility of the intervention will also be evaluated.

The hypothesis is that participants receiving active ABM training and placebo training will show greater reductions in social anxiety symptoms compared to the wait-list control group, and that participants in the active condition will show greater reduction in symptoms than the placebo condition. The study further hypothesizes that only the active ABM condition will produce significant changes in attention bias and attentional bias variability. Overall, the study aims to clarify the specific and nonspecific mechanisms underlying symptom improvement following Attention Bias Modification interventions for Social Anxiety Disorder.

연구 유형

중재적

등록 (추정된)

90

단계

  • 해당 없음

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 연락처 백업

연구 장소

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

  • 성인
  • 고령자

건강한 자원 봉사자를 받아들입니다

아니

설명

Inclusion Criteria:

  • Adults aged 18-65 years
  • Primary diagnosis of generalized Social Anxiety Disorder based on clinical evaluation, the MINI International Neuropsychiatric Interview (MINI), and a Liebowitz Social Anxiety Scale (LSAS) score greater than 50
  • Normal or corrected-to-normal vision without color blindness
  • Sufficient Hebrew proficiency to complete clinical interviews, self-report questionnaires, and computerized cognitive tasks

Exclusion Criteria:

  • Previous participation in attention bias modification training using a dot-probe task
  • Previous participation in eye-tracking-based attention training
  • Current diagnosis of Post-Traumatic Stress Disorder
  • Current or past diagnosis of psychotic disorder or bipolar disorder
  • Neurological disorder (e.g., epilepsy or traumatic brain injury)
  • Severe suicidal ideation
  • Current substance or alcohol use disorder
  • Concurrent pharmacological or psychosocial treatment, unless medication has been stable for at least 45 days
  • Pregnancy
  • Uncorrected visual impairment or use of multifocal glasses

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 치료
  • 할당: 무작위
  • 중재 모델: 병렬 할당
  • 마스킹: 더블

무기와 개입

참가자 그룹 / 팔
개입 / 치료
활성 비교기: Active ABM Training
Mechanized Dot-Probe Attention Bias Modification (ABM) training attention away from threat faces. Participants identify the direction of an arrowehead presented at the location of neutral faces.
행동: Dot-Probe Attention Bias Modification (ABM)
Participants complete a computerized dot-probe attention training task designed to train attention away from threat-related stimuli. During each trial, angry and neutral facial expressions are presented simultaneously, followed by a probe that consistently appears in the location of the neutral face. Participants complete eight training sessions over four weeks.
다른 이름들:
  • ABM
위약 비교기: Placebo Training
Mechanized Intervention: Placebo Training, presenting a single, centered, non-face oval shape in each trial. Participants identify the direction of an arrowehead centrally presented.
행동: Placebo Training
Participants complete a computerized task matched to the active training condition in duration, structure, and task demands, but without exposure to emotional stimuli or attentional training contingencies. The task is designed to control for nonspecific factors such as expectancy and engagement. Participants complete eight sessions over four weeks.
간섭 없음: Wait-List Control
No Intervention / Wait-List, assessments at the same intervals as the active and placebo conditions without intervention in between.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Change in social anxiety symptoms
기간: a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in social anxiety symptom severity from baseline to post-intervention as measured by the Liebowitz Social Anxiety Scale (LSAS). Min-Max values 0-80, higher scores mean worse outcome.
a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.

2차 결과 측정

결과 측정
측정값 설명
기간
Change in reaction-time-based attention bias measured in miliseconds
기간: a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in attention bias derived from reaction-time performance on the dot-probe task.
a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in reaction-time-based attention bias variability
기간: a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in attention bias variability derived from reaction-time performance on the dot-probe task.
a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in eye-tracking-based attention bias
기간: a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in attention bias measured using eye-tracking during a free-viewing task with threat-related and neutral facial stimuli.
a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in eye-tracking-based attention bias variability
기간: a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in attention bias variability measured using eye-tracking during a free-viewing task with threat-related and neutral facial stimuli.
a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Treatment Expectancy and Credibility
기간: Baseline one-week before treatment begins
Participant-rated treatment expectancy and perceived credibility assessed using the Credibility/Expectancy Questionnaire (CEQ). 0-9 scale and 0% - 100%. Higher scores indicate greater treatment credibility and greater expectation of improvement.
Baseline one-week before treatment begins
Change in depressive symptoms
기간: a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in depressive symptom severity measured using the Patient Health Questionnaire-9 (PHQ-9). Scale range 0-20, higher scores mean worse outcome.
a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in Generalized Anxiety Symptoms
기간: a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change in generalized anxiety symptoms measured using the Generalized Anxiety Disorder-7 scale (GAD-7). Scores range 0-21, higher scores mean worse outcome.
a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Self report change in social anxiety symptoms
기간: a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.
Change insocial anxiety symptom severity measured using the Social Phobia Inventory (SPIN). Scores range 0-68, higher scores mean worse outcome.
a) Baseline one-week before treatment begins; b) an average of 2 weeks following treatment completion. Total time frame (baseline-post) an average of 6 weeks.

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

Tel Aviv University

수사관

  • 수석 연구원: Yair Bar-Haim, PhD, Tel Aviv University

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (실제)

2026년 6월 15일

기본 완료 (추정된)

2026년 10월 30일

연구 완료 (추정된)

2027년 6월 30일

연구 등록 날짜

최초 제출

2026년 6월 15일

QC 기준을 충족하는 최초 제출

2026년 6월 18일

처음 게시됨 (실제)

2026년 6월 24일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 6월 24일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 6월 18일

마지막으로 확인됨

2026년 6월 1일

추가 정보

이 연구와 관련된 용어

키워드

추가 관련 MeSH 약관

기타 연구 ID 번호

  • ABM_P

개별 참가자 데이터(IPD) 계획

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아니요

약물 및 장치 정보, 연구 문서

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아니

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

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