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Related Experiment Video

Updated: May 16, 2026

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

Pornographic picture processing interferes with working memory performance.

Christian Laier1, Frank P Schulte, Matthias Brand

  • 1Department of General Psychology, Cognition, University of Duisburg-Essen, Duisburg, Germany. christian.laier@uni-due.de

Journal of Sex Research
|November 22, 2012
PubMed
Summary
This summary is machine-generated.

Sexual arousal from viewing pornography can impair working memory (WM) capacity. This study found that exposure to pornographic images negatively affected performance on a WM task, potentially linking to issues seen in Internet sex addiction.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience of Addiction
  • Human Sexuality

Background:

  • Internet sex engagement is linked to negative life consequences like sleep loss and missed appointments.
  • A potential mechanism is that sexual arousal interferes with working memory (WM) capacity, leading to poor decision-making.
  • Understanding this interference is crucial for addressing problematic online sexual behaviors.

Purpose of the Study:

  • To investigate the impact of sexual arousal on working memory (WM) performance.
  • To examine whether processing pornographic stimuli affects cognitive functions related to WM.
  • To explore the role of subjective sexual arousal and masturbation urges in this interaction.

Main Methods:

  • Twenty-eight healthy participants completed a 4-back working memory task using neutral, negative, positive, or pornographic image stimuli.
  • Participants rated the sexual arousal and masturbation urges associated with pornographic images.
  • Hierarchical regression analysis was used to examine the relationship between stimulus type, arousal ratings, urges, and WM performance.

Main Results:

  • Working memory performance was significantly worse when participants viewed pornographic stimuli compared to other image types.
  • Subjective ratings of sexual arousal and masturbation urges explained variance in WM performance with pornographic stimuli.
  • A moderating effect of masturbation urges on WM performance was observed.

Conclusions:

  • Sexual arousal induced by processing pornographic images demonstrably interferes with working memory (WM) performance.
  • These findings support the hypothesis that cognitive interference by sexual cues may contribute to problematic online sexual behaviors.
  • The results have implications for understanding mechanisms underlying Internet sex addiction, drawing parallels with substance dependencies.