Problematic gaming has been consistently associated with insecure attachment styles and alexithymia. However, there is limited knowledge regarding the impact of specific alexithymic features and insecure attachment styles on problematic gaming. The study included a sample of 358 online game players (242 males, 67.6%) between the ages of 18 and 59 (M = 28.46; SD = 8.76) who were recruited from online gaming communities. The participants completed a sociodemographic schedule and measures on attachment styles, alexithymia, and problematic gaming. The results provide evidence for a positive prediction of problematic gaming by dismissing attachment style and the alexithymic factors concerning the difficulty identifying feelings and externally oriented thinking, even when controlling for potentially confounding factors, such as age, sex, education, marital status, and self-reported time devoted to online games. Additionally, the analysis revealed a significant interaction effect between externally oriented thinking and dismissing attachment style in the prediction of problematic gaming. The interaction implies that the alexithymia factors pertaining to externally oriented thinking hold significant relevance in predicting problematic gaming behaviors, especially in cases where dismissive attachment levels are moderately to highly present. These findings emphasize the significance of considering specific insecure attachment styles and alexithymic features when studying problematic gaming behaviors.

Attachment styles and defense mechanisms are widely recognized as central components in personality development. However, few empirical studies have examined their combined contribution to maladaptive personality traits within the dimensional framework of the DSM-5 Alternative Model for Personality Disorders (AMPD). This study investigated the extent to which adult attachment styles and defense mechanisms predict the five AMPD maladaptive personality domains: negative affectivity, detachment, antagonism, disinhibition, and psychoticism. Data were collected from a community sample of 400 adults (190 males, 47.5%), aged 18 to 69 years (M = 36.96; SD = 11.59). Hierarchical multiple regression analyses were conducted for each maladaptive personality domain to examine the predictive roles of attachment styles and defense mechanisms. Our findings indicate that each maladaptive personality domain is associated with specific configurations of attachment styles and defense mechanisms. In conclusion, the findings suggest the relevance of assessing adult attachment styles and defensive functioning in clinical contexts in order to deepen the understanding of the individuals’ personality profiles.