Neurocognitive Seam Interfaces Linking Social Roles and Autonomous Sub-Personality Modules within the RAMSD Framework

**Objective:** This paper introduces and extends the concept of seam interfaces—neurocognitive transition zones mediating the dynamic interaction between externally imposed social roles and internally activated sub-personality modules—within the framework of the Role-Autonomy Model of Sub-Personality Dynamics (RAMSD).**Theoretical Approach:** Seam interfaces are conceptualized as adaptive hubs of inter-network connectivity, primarily involving the Default Mode Network (DMN), Salience Network (SN), and Executive Control Network (ECN), which orchestrate the switching, integration, and conflict resolution mechanisms between autobiographical identity and contextually cued behavior. This framework integrates contemporary neuroscience of selfhood, embodied cognition, affective regulation, and clinical observations in trauma, dissociation, and role rigidity.**Propositions:** Dysfunctional seam activity gives rise to measurable disturbances in cognitive-affective integration, manifesting as role dissociation (disconnection between action and self), sub-personality stagnation (inflexibility despite context), and neuro-emotional block (affective shutdown or dissonance). These syndromes are behaviorally and neurologically tractable.**Implications:** The model informs the design of experimental protocols (e.g., ERP-based role-switching tasks), development of psychometric instruments, agent-based simulations of identity adaptation, and novel therapeutic interventions targeting inter-network coherence and role fluidity through neurofeedback, cognitive reframing, and embodied integration techniques.*Note: This theoretical model is presented for exploratory and conceptual purposes. It does not constitute a clinical diagnostic tool or therapeutic protocol and is not intended to replace any established mental health frameworks (e.g., DSM-5 or ICD-11). All proposed clinical illustrations and hypotheses remain subject to empirical testing.*