A study conducted in China found that individuals with problematic pornography use show stronger neural reactions to images that evoke negative emotions compared to healthy participants. These individuals also rated such images as more unpleasant compared to the ratings given by healthy participants. The findings were published in Frontiers in Psychology.
The advent of high-speed internet and widespread use of mobile phones have made pornographic content more accessible than ever before. Studies indicate that between 92% and 98% of males and between 50% and 91% of females have engaged with pornographic content at least once in their lives. Most people view pornography for entertainment purposes without experiencing significant adverse effects.
However, some individuals develop what is referred to as problematic pornography use. This condition involves a pattern of pornography consumption that causes significant distress or impairment in various aspects of an individual’s life. Those affected tend to engage with pornographic content excessively or compulsively, which interferes with their daily responsibilities, relationships, work, or personal well-being. Despite negative consequences, they find it difficult to control or reduce their consumption, leading to feelings of guilt, shame, and anxiety, which adversely impact their mental health.
Study author Shuangyi Qu and colleagues noted that problematic pornography use includes patterns of craving for pornography similar to those found in addictive behaviors, such as substance use disorders. Research on individuals with substance use disorders has shown heightened neural reactions to stimuli that evoke negative emotions.
The authors hypothesized that individuals with problematic pornography use might exhibit similar neural reactions. They further suggested that the development of this condition could be linked to the stress and anxiety these individuals experience in life. Problematic pornography use might serve as a coping mechanism to shift attention away from negative emotions, regulating them in the process. This emotion regulation strategy could explain why these individuals rate negatively charged stimuli as more unpleasant than healthy participants do.
The study involved 27 male college students with problematic pornography use and 29 male students without this condition, who served as healthy controls. Participants with problematic pornography use were selected based on their scores on the Problematic Pornography Consumption Scale. All participants had viewed pornographic content at least once in the past six months.
Researchers selected 60 pictures from the Chinese Affective Picture System, categorized into neutral, mildly negative, and highly negative images, based on the emotions they were found to evoke in previous studies. Neutral pictures were not expected to incite particular emotions, mildly negative images were expected to evoke mild negative emotions, and highly negative images were expected to evoke strong negative emotions.
Participants were shown these pictures as part of a modified oddball task, during which their brain responses were recorded using electroencephalographic (EEG) equipment. In this task, participants saw either a standard picture (a kettle) or one of the 60 selected images for 2 seconds and were asked to indicate as quickly as possible whether the picture shown was the standard picture or another image.
Afterward, participants rated the emotional state each picture induced, reporting on its valence (how pleasant or unpleasant the emotions were) and arousal (how intense the emotions were). They also completed assessments of depression and anxiety using the Zung Self-Rating Depression Scale and the Zung Self-Rating Anxiety Scale.
The results showed that participants with problematic pornography use had higher levels of depression and anxiety compared to healthy participants. In the oddball task, all participants reacted quicker to highly negative pictures compared to neutral or mildly negative pictures. Individuals with problematic pornography use rated highly negative pictures as more unpleasant than healthy participants did.
EEG data revealed that both mildly negative and highly negative images elicited stronger neural reactions compared to neutral images. Further analysis indicated that individuals with problematic pornography use had stronger neural reactions to negative images compared to healthy controls.
“These outcomes suggest that individuals with PPU [problematic pornography use] exhibited heightened reactivity toward negative stimuli. This increased sensitivity to negative cues could potentially play a role in the propensity of PPU individuals to resort to pornography as a coping mechanism for managing stress,” the study authors concluded.
While the study provides insights into the neural functioning of individuals with problematic pornography use, it has limitations. The study design does not allow for cause-and-effect inferences, and the participants were university students, which means the results might not be applicable to other age or demographic groups.
The study, “Increased sensitivity for negative emotional images in individuals with problematic pornography use,” was authored by Shuangyi Qu, Ruiyu Li, and Jianfeng Wang.
