Is a Constricted Imaginal Capacity a Component of the Alexithymia Construct? A Factor Analytic Exploration in a Clinically Enriched Sample

Background/Objectives: Alexithymia is a potential transdiagnostic risk factor for psychiatric and medical disorders involving affect dysregulation. But there is debate over whether a constricted imaginal capacity constitutes a core component of the construct or is a separable correlate. Our aim was to further explore this controversy as any revision to the construct has implications for clinical formulation, neurobiological models of associated default mode network dysfunction, and the coherence of the original psychiatric conceptualization. Methods: To replicate and extend previous factor analytic work, we conducted a two-stage exploratory factor analysis in a community sample that included individuals with a psychiatric history (N = 681). Using most of the subscale indicators employed in two prior factor analytic studies, we used a two-stage procedure: Stage 1 re-employed the general design of those studies. Stage 2 re-specified the analytic space by removing emotional reactivity and fantasizing-for-regulation variables that form their own separable latent dimensions. Results: Stage 1 yielded a conceptual replication of structural separation between alexithymia and imaginal processes. Stage 2 revealed meaningful cross-loadings obscured in the full set, most notably positive constructive daydreaming loading negatively on an externally oriented thinking factor, providing empirical support for the pensée opératoire construct. Additional cross-loadings linked dysphoric daydreaming and poor attentional control with negative emotion appraisal. Conclusions: The structural independence of alexithymia and imaginal processes is partly contingent on indicator set composition. Construct revision should be grounded not on two factor analytic studies using abbreviated self-report measures, but in convergent evidence across methods, including neuroimaging, electroencephalography, structured interview, performance-based assessment, and clinical observation.