Impact d’un traumatisme craniocérébral modéré-grave sur la personnalité et ses composantes : une scoping study
Problem. Moderate to severe traumatic brain injury (TBI) is caused by traumatic insult and can result in localised or diffused cerebral damage. Theses damages lead to cognitive deficits in all cognitive domains. Results from several studies suggest that TBI can also change personality, but this assertion does not yet reach consensus. The present study aim to explore the nature of personality changes in moderate to severe traumatic brain injury, according to literature. Method. The study was conducted with a Scoping Study, which is a type of literature review (Arksey et O'Malley, 2005). A keyword search was done in several databases [Medline (EBCSO), Cinahl, Embase, psyInfo (including PsycNET, PsycArticle, et PsycINFO), Scopus, Web of Sciences and Dissertation and Thesis (proquest)]. At the end of the process, 1192 scientific articles were first selected. From these, 16 studies, which contained specific results were analysed: case studies (n=5), descriptive studies (n=2), correlational study (n=9), including several temporal studies (containing retrospective and prospective studies). Results. The present study reveals that it is still difficult to conclude about personality change existence after TBI, to estimate its prevalence or to precise its nature. Discussion. At the end of the present research, it emerges that conclusions of the studies may be influenced by psychometric tools and procedures selected to assess personality and changes. There are also results suggesting that some personality dimensions could be more stable and resist TBI influence as other dimensions could be more sensitive to cerebral damages. Some psychometric tools seem sensitive to mood disorders and this can introduce measurement bias. Results support the relevance to rely on a theoretical model as Mayer’s Personality Framework (2001, 2005, 2015), which takes into consideration neuroanatomical  vi substrates for personality and dynamic processes. This could contribute to the development of adapted psychometric tools to measure personality, after TBI, and help to develop a better understanding of the existence and nature of personality change.
Changements. Traumatic brain injury Personality Personality traits Personality structure Personality disorders Dynamic process Changes