Effects of acute stress on cue reactivity and implicit cognitions in online compulsive buying-shopping disorder.

Background and aims: There is a lack of research on the impact of acute stress on the interaction of affective and cognitive processes in online compulsive buying-shopping disorder (CBSD). Therefore, this project addressed stress response, cue reactivity, attentional bias, and implicit associations in individuals with online CBSD.

Methods: Women with CBSD (n = 63) and women with non-problematic online buying-shopping (n = 64) were randomly assigned to the Trier Social Stress Test or a non-stress condition. After the stress/non-stress induction, participants performed a cue-reactivity paradigm, a dot-probe paradigm, and an implicit association task, each with addiction-related (online buying-shopping) and control (social networks) cues.

Results: Individuals with CBSD showed stronger affective responses towards the addiction-related and control cues than the control group and rated the addiction-related pictures with higher 'arousal' and 'urge' than the control images. No group differences emerged in the dot-probe paradigm and implicit association task. Acute stress showed no effect on performance in the behavioural tasks. Regression models investigating the impact of craving on the relationship between stress response and implicit cognitions within the group with CBSD were not significant.

Discussion: The findings demonstrate the involvement and generalization of cue reactivity in online CBSD, but do not provide support for effects of acute stress on cue reactivity, attentional bias and implicit associations.

Conclusions: Future studies should not be restricted to women and combine laboratory and naturalistic study designs to investigate the complex psychological mechanisms in online CBSD.