Attentional Bias in specific symmetry and cleaning dimensions of obsessive-compulsive disorder

Attention allocation in OCD: A systematic review and meta-analysis of eye-tracking-based research

INTRODUCTION

Cognitive models of obsessive-compulsive disorder (OCD) implicate heightened attention allocation to stimuli related to one's obsessions in the disorder. Recently, to overcome several limitations of reaction time-based measures, eye-tracking methodology has been increasingly used in attentional research.

METHODS

A meta-analysis of studies examining attention allocation towards OCD-related vs. neutral stimuli, using eye-tracking methodology and a group-comparison design, was conducted conforming to Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Separate meta-analyses were performed for attentional vigilance (both latency and location of first fixations) and maintenance (total dwell time and total fixation count, conjointly). Each meta-analysis was conducted twice - once including all studies (main analysis) and once only including studies using the free-viewing paradigm (secondary analysis).

RESULTS

The systematic search yielded a total of nine studies. Of those, eight provided the needed data to be included in the meta-analysis. No evidence emerged for vigilance via latency to first fixation. Vigilance reflected via first fixation location emerged in the main analysis, but not in the secondary one. Evidence for attentional maintenance was found only when analyzing free-viewing studies exclusively (the secondary analysis).

LIMITATIONS

To increase the accuracy of the research question, correlational studies were excluded, resulting in a small number of available studies.

CONCLUSIONS

OCD may be characterized by vigilance, but mainly in tasks entailing specific demands and/or goals. Conversely, attentional maintenance may be evident only when using tasks that pose no requirements or demands for participants.

The Relationship Between Attentional Bias, Anxiety Sensitivity, and Depression and Anxiety Symptoms: Evidence From the COVID-19 Pandemic in China

Background

The COVID-19 pandemic has led to observed increases in reported mental health issues, such as depression and anxiety symptoms. There is evidence attentional bias is associated with depression and anxiety, and it has been further suggested that anxiety sensitivity has a role in both the development and maintenance of depression and anxiety symptoms. Understanding these relationships may help inform preventative interventions for those at risk of mental health concerns. The present study explores the role of anxiety sensitivity, specifically physical and cognitive concerns, as a potential mediator of the relationship between attentional bias with depression and anxiety symptoms.

Method

Participants (n = 460) were recruited from the general population in China, and completed an online survey between February and March, 2020 which included the Attention to Positive and Negative Information Scale (APNI), Anxiety Sensitivity Index-3 (ASI-3) and Depression, Anxiety and Stress Scale (DASS-21). After exploring the correlations between the measures, mediation analysis was performed to explore the role of anxiety sensitivity (physical and cognitive subscales) in the relationship between attentional bias and depression and anxiety (as measured by the DASS-21).

Results

The results indicated that negative attention bias was significantly positively correlated with physical and cognitive concerns, physical and cognitive concerns were significantly positively correlated with depression and anxiety, and negative attention bias was significantly positively correlated with depression and anxiety (all ps < 0.001). Physical and cognitive anxiety sensitivity mediated the relationship between negative attention bias and both anxiety and depression symptoms.

Conclusion

Negative bias was associated with levels of anxiety and depression, and physical and cognitive anxiety sensitivity mediated associations between negative bias and anxiety and depression symptoms. The study provides theoretical support for intervention and guidance on individual mental health during the pandemic, and helps individuals increase their concern to negative emotions.

Emotional induced attentional blink in obsessive-compulsive disorder

BACKGROUND

Although an attentional bias for threat is implicated in anxiety disorders, such a bias has not been consistently observed in obsessive-compulsive disorder (OCD). This inconsistency is partially due to a paucity of studies employing robust attentional tasks. The emotional attentional blink (EAB), a phenomenon in which the brief appearance of a task-irrelevant, emotionally arousing image captures attention to such an extent that target stimuli cannot be detected, have increasing been employed as more robust tasks of attentional biases.

METHODS

In the present study, patients with OCD (n = 23) and controls (n = 24) completed an EAB paradigm that required searching for a target embedded within a series of rapidly presented images. Critically, a fear, disgust, positive, or neutral distracter image appeared 200 ms or 800 ms before the target (i.e., lag 2 and lag 8).

RESULTS

Although accuracy was significantly reduced for control participants when emotionally arousing images served as distractors compare to neutral images at lag 2 (but not at lag 8), no statistically significant differences in accuracy were observed between emotionally arousing images and neutral images among those with OCD. Subsequent analysis did show that OCD symptoms across all participants was significantly correlated with difficulty disengaging from emotionally arousing, but not neutral, images.

LIMITATIONS

Relatively small sample size and absence of personally-relevant threatening stimuli.

CONCLUSIONS

The reduced attentional capture by emotionally arousing images in OCD, relative to neutral images neutral, may suggest inefficient engagement and disengagement of attentional networks.