Sexual cues alter working memory performance and brain processing in men with compulsive sexual behavior.

Area of Science:

• Neuroscience
• Psychology
• Addiction Research

Background:

• Pornography use is widespread and debated, but its neural impact on attention and memory remains unclear.
• Understanding these effects is crucial, especially in individuals with compulsive sexual behavior (CSB).

Purpose of the Study:

• To investigate the neural mechanisms underlying the effects of pornographic stimuli on working memory in individuals with CSB.
• To compare brain activity and behavioral responses between patients with CSB and healthy controls when processing neutral versus pornographic images.

Main Methods:

• Functional magnetic resonance imaging (fMRI) was used to monitor brain activity.
• A letter n-back task with neutral or pornographic background images was administered to 38 patients with CSB and 31 healthy controls.
• A surprise recognition task assessed memory performance for the presented images.

Main Results:

• Patients with CSB were behaviorally slowed by pornographic material, correlating with recent consumption and increased lingual gyrus activation.
• The lingual gyrus showed heightened functional connectivity with the insula in patients during pornographic stimulus processing.
• Healthy controls exhibited faster responses to pornographic images only under high cognitive load, and patients demonstrated superior memory recall for pornographic content.

Conclusions:

• Pornographic stimuli differentially affect working memory and neural processing in individuals with CSB compared to healthy controls.
• Findings support the incentive salience theory of addiction, highlighting the role of the insula and salience network in CSB and responses to pornography.
• Recent pornography consumption influences neural activity in the lingual gyrus, underscoring the material's heightened relevance in this patient group.