Publications by authors named "A Harrewijn"

Elevated threat appraisal is a postulated neurodevelopmental mechanism of anxiety disorders. However, laboratory-assessed threat appraisals are task-specific and subject to measurement error. We utilized latent variable analysis to integrate youth's self-reported threat appraisals across different experimental tasks; we next examined associations with pediatric anxiety as well as behavioral and psychophysiological task indices.

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Background: Altered gaze in social settings is a hallmark of social anxiety; however, little research directly examines gaze in anxiety-provoking contexts among youth with anxiety disorders, limiting mechanistic insight into pediatric anxiety. The present study leveraged mobile eye-tracking technology to examine gaze behavior during a naturalistic stressor in a clinical developmental sample.

Methods: Sixty-one youth (ages 8-17 years; 28 with anxiety disorders, 33 non-anxious controls) completed a naturalistic social stress task (public speaking in front of a videotaped classroom audience) while wearing eye-tracking glasses.

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Attentional bias to social threat cues has been linked to heightened anxiety and irritability in youth. Yet, inconsistent methodology has limited replication and led to mixed findings. The current study aims to 1) replicate and extend two previous pediatric studies demonstrating a relationship between negative affectivity and attentional bias to social threat and 2) examine the test-retest reliability of an eye-tracking paradigm among a subsample of youth.

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Article Synopsis
  • - The ENIGMA Anxiety Working Group studied brain structural differences between individuals with specific phobias and healthy participants, focusing on subtypes of phobias like animal and blood-injection-injury (BII) while examining how these differences relate to symptom severity and age.
  • - A total of 1,452 participants with phobias and 2,991 healthy subjects were analyzed, revealing that those with phobias exhibited smaller subcortical volumes and varying cortical thickness, especially noted in adults rather than youths.
  • - The results indicate that brain alterations in specific phobias are more significant than in other anxiety disorders, revealing distinct neural underpinnings linked to fear processing across different phobia types, highlighting a
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Article Synopsis
  • Developmental cognitive neuroscience is growing quickly and studying how children's brains and thinking skills develop over time.
  • Scientists use different methods to look at brain activity, but this text says we should focus more on a method called EEG, which is cheaper and easy to use.
  • EEG can help us see how people's brains behave during social interaction, whether in a lab or in real life, making it a great tool for researchers studying social development.
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