How Processing of Sensory Information From the Internal and External Worlds Shape the Perception and Engagement With the World in the Aftermath of Trauma: Implications for PTSD

Post-traumatic stress disorder (PTSD) is triggered by an individual experiencing or witnessing a traumatic event, often precipitating persistent flashbacks and severe anxiety that are associated with a fearful and hypervigilant presentation. Approximately 14–30% of traumatized individuals present with the dissociative subtype of PTSD, which is often associated with repeated or childhood trauma. This presentation includes symptoms of depersonalization and derealization, where individuals may feel as if the world or self is “dream-like” and not real and/or describe “out-of-body” experiences. Here, we review putative neural alterations that may underlie how sensations are experienced among traumatized individuals with PTSD and its dissociative subtype, including those from the outside world (e.g., touch, auditory, and visual sensations) and the internal world of the body (e.g., visceral sensations, physical sensations associated with feeling states). We postulate that alterations in the neural pathways important for the processing of sensations originating in the outer and inner worlds may have cascading effects on the performance of higher-order cognitive functions, including emotion regulation, social cognition, and goal-oriented action, thereby shaping the perception of and engagement with the world. Finally, we introduce a theoretical neurobiological framework to account for altered sensory processing among traumatized individuals with and without the dissociative subtype of PTSD.

Assessing PTSD Symptoms

Posttraumatic stress disorder (PTSD) is a serious and prevalent mental health disorder that poses significant challenges for accurate assessment and diagnosis. This chapter describes some of the most widely used PTSD assessment tools for adult trauma survivors, including structured interviews, self-report measures, and biologically based methods, with an eye toward updates reflecting the new Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) PTSD criteria. It also discusses several key issues in PTSD assessment, including identifying an index traumatic event for symptom inquiry, linking symptoms to the index event, assessing for the new dissociative subtype, and detecting exaggerated symptom reporting. The chapter concludes with a brief discussion of future directions for research on PTSD assessment.

Psychopathology in refugees subjected to the Dublin Regulation: an Italian study

Background. Literature shows that migrants—a generic definition for persons who leave their own country of origin—have increased psychopathological vulnerability. Between 2014 and 2017, 976 963 non-European Union (non-EU) people arrived in Italy, of which 30% for humanitarian reasons. This study is aimed at a better understanding of the experience of asylum seekers who transferred to Italy were subjected to the EU Dublin Regulation and most of them suspended in their asylum application. Methods. We elaborate a descriptive study based on a population of refugees and asylum seekers who have suffered from social and personal migratory stressful factors. Clinical data was collected between 2011 and 2013 at the “A. Gemelli” General Hospital IRCCS, Rome, Italy. Minors, elderly people, and patients who are unable to declare a voluntary consensus and economic migrants were excluded from the study. Candidates for the status of refugee or asylum seekers were included. Results. The sample consisted of 180 asylum seekers aged 25.52 ± 5.6 years. Most frequently diagnosis was post-traumatic stress disorder (PTSD) (53%), subthreshold PTSD was reported in 22% of subjects. We found phenomenological patterns highly representative of PTSD of the dissociative subtype. Around 20% of the sample suffered from psychotic symptomatology. Conclusions. Loss of the migratory project and the alienation mediated by chronic social defeat paradigm may trigger a psychopathological condition described by the failure to cope with the negative emotional context of social exclusion and solitude. A common and integrated treatment project is needed, with the scope of reintegrating the migrant’s personal and narrative identity.