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Related Concept Videos

Obsessive-Compulsive Disorder01:28

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Obsessive-compulsive disorder (OCD) is a mental health condition characterized by recurrent obsessions, compulsions, or both, which consume significant time and interfere with daily functioning. Obsessions involve persistent, intrusive, and unwanted thoughts, images, or urges that evoke anxiety. Common examples include irrational fears of contamination or harm. Compulsions are repetitive behaviors or mental acts performed to reduce the anxiety caused by obsessions. For instance, individuals...
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Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
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Dependent personality disorder and obsessive-compulsive personality disorder are two separate psychological conditions that influence behavior, relationships, and overall life functioning. Though both involve maladaptive behaviors, their core characteristics and motivations differ significantly.
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Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
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Related Experiment Video

Updated: Aug 4, 2025

Exploring the Neural Correlates of Cognitive Reappraisal in Obsessive-Compulsive Disorder Using Task-based Functional Magnetic Resonance Imaging
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Exploring the Neural Correlates of Cognitive Reappraisal in Obsessive-Compulsive Disorder Using Task-based Functional Magnetic Resonance Imaging

Published on: March 14, 2025

275

Early visual perceptual processing is altered in obsessive-compulsive disorder.

Elizabeth A Chapman1, Stephanie Martinez2, Andreas Keil3

  • 1University of Florida, USA; Dept. of Psychiatry, USA; Center for OCD, Anxiety, and Related Disorders, USA.

Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
|March 31, 2023
PubMed
Summary
This summary is machine-generated.

Individuals with obsessive compulsive disorder (OCD) exhibit altered early visual processing, showing enhanced P1 amplitudes to neutral stimuli. This suggests potential inefficiencies in visual processing for the OCD population.

Keywords:
EEGERPsElectroencephalographyEvent-related potentialsFlanker taskOCDObsessive-Compulsive DisorderP1Visual processing

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Visual Processing

Background:

  • Previous research indicates attention and emotion processing differences in obsessive compulsive disorder (OCD).
  • Early visual processing in OCD remains understudied, as prior investigations focused on specific visual evoked potentials (VEPs) rather than the entire processing timeline.

Purpose of the Study:

  • To investigate the complete visual processing stream in individuals with OCD compared to healthy controls (HC).
  • To utilize emotionally neutral visual stimuli and a data-driven approach to identify early visual processing alterations in OCD.

Main Methods:

  • Electroencephalography (EEG) was recorded from 35 HC and 26 participants with OCD during a modified Eriksen flanker task.
  • Permutation-controlled t-tests analyzed the full time course of VEPs to identify group differences.
  • ANCOVAs assessed baseline-corrected amplitudes, controlling for BDI, BAI, and SNAP-inattentiveness scores.

Main Results:

  • The OCD group showed enhanced P1 amplitudes at 65-93 ms and 157-187 ms post-stimulus presentation compared to controls.
  • Group status (OCD vs. HC) was the primary predictor of VEP amplitude in these time windows.
  • Covariates did not significantly influence VEP amplitudes.

Conclusions:

  • This study reveals an enhanced P1 component in individuals with OCD when processing neutral visual stimuli.
  • This finding may indicate inefficient or excessive early visual processing in OCD.
  • Further research is needed to link these visual processing alterations to sensory hypervigilance in OCD.