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Traços de personalidade borderline na população clínica : contributos do PID-5 e da LPFS-SR
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Orientador(es)
Resumo(s)
O presente projeto de mestrado procurou explorar os traços de personalidade borderline,
considerando duas amostras de uma população clínica de 145 indivíduos: uma com prevalência
nos domínios Antagonismo, Desinibição e Afetividade Negativa (n = 27), designada por ‘grupo
borderline’, e uma outra com valores abaixo da média nestes domínios, denominada ‘outro
grupo’ (n = 118). Este estudo tem, como principal objetivo, caracterizar e diferenciar o grupo
borderline do outro grupo, com recurso ao Inventário de Personalidade para o DSM-5 (PID-5)
e à Escala de Nível de Funcionamento da Personalidade (LPFS-SR). Foram analisadas as
potencialidades e as limitações de ambos os instrumentos para este fim. As hipóteses foram
fundamentadas na revisão de literatura efetuada, que serviu de referência à análise de
resultados, assim como em critérios estabelecidos pelo Modelo Alternativo para as
Perturbações de Personalidade apresentado no Manual de Diagnóstico e Estatística das
Perturbações Mentais (DSM-5). Encontraram-se diferenças significativas nos resultados
obtidos em ambos os grupos exceto na faceta Anedonia do PID-5. O grupo borderline obteve
valores significativamente mais elevados do que o outro grupo em todas as facetas do PID-5,
exceto na faceta Insensibilidade, assim como nas quatro dimensões e no resultado global da
LPFS-SR. Dado que a severidade da disfunção da personalidade, avaliada pela LPFS-SR, é o
aspeto fundamental do diagnóstico para as Perturbações de Personalidade na nova
conceptualização do DSM-5, esperava-se que as relações entre a LPFS-SR e o PID-5 fossem
mais fortes no grupo com predomínio de traços borderline (grupo borderline). Esta hipótese
não se confirmou. Estes resultados são discutidos tendo como referência estudos anteriores.
Não obstante as limitações deste estudo, este confirma as potencialidades do PID-5 na
diferenciação de indivíduos com características de personalidade diferentes e é o primeiro
estudo a ser realizado com a LPFS-SR uma amostra clínica portuguesa, contribuindo para a sua
validação em Portugal.
The current investigation aimed to explore borderline personality traits, considering two clinical samples derived from a global sample: the first clinical sample is a sample in which subjects showed prevalent means in the domains of Antagonism, Disinhibition and Negative Affectivity (n = 27), that we called borderline group, and the second clinical sample represents a sample in which these domains aren’t prevalent, that we called “other group” (n = 118). The main goal is to differentiate and characterize the borderline group from the other group applying the Personality Inventory for DSM-5 – Adults (PID-5) and the Level of Personality Functioning Scale – Self Report (LPFS-SR). The contributions and limitations of both instruments for this purpose were analyzed. Hypothesis were brought up according to theoretical conceptualization that served as reference to analyze the results, such as the criteria given in the Alternative Model presented in Diagnostic and Statistics Manual of Mental Disorders (DSM-5). These results show significant differences in both groups, excluding PID-5’s trait facet Anhedonia. The borderline group showed significantly higher values, when in comparison to the other group, in every trait facet but Callousness, and in LPFS-SR’s dimensions and global result. Given the fact that the severity of personality disfunction, assessed through the LPFS-SR, is the fundamental aspect to diagnose Personality Disorders according to DSM-5, we were expecting higher correlations between LPFS-SR and PID-5 in the borderline group. However, such expectations were not corresponded. These results are discussed in the light of previous studies. Despite the limitations granted in the current study, it confirms PID-5’s potential to differentiate subjects with different personality traits and it is the first study being conducted with the LPFS-SR on a Portuguese clinical sample, which contributes to its validation in Portugal.
The current investigation aimed to explore borderline personality traits, considering two clinical samples derived from a global sample: the first clinical sample is a sample in which subjects showed prevalent means in the domains of Antagonism, Disinhibition and Negative Affectivity (n = 27), that we called borderline group, and the second clinical sample represents a sample in which these domains aren’t prevalent, that we called “other group” (n = 118). The main goal is to differentiate and characterize the borderline group from the other group applying the Personality Inventory for DSM-5 – Adults (PID-5) and the Level of Personality Functioning Scale – Self Report (LPFS-SR). The contributions and limitations of both instruments for this purpose were analyzed. Hypothesis were brought up according to theoretical conceptualization that served as reference to analyze the results, such as the criteria given in the Alternative Model presented in Diagnostic and Statistics Manual of Mental Disorders (DSM-5). These results show significant differences in both groups, excluding PID-5’s trait facet Anhedonia. The borderline group showed significantly higher values, when in comparison to the other group, in every trait facet but Callousness, and in LPFS-SR’s dimensions and global result. Given the fact that the severity of personality disfunction, assessed through the LPFS-SR, is the fundamental aspect to diagnose Personality Disorders according to DSM-5, we were expecting higher correlations between LPFS-SR and PID-5 in the borderline group. However, such expectations were not corresponded. These results are discussed in the light of previous studies. Despite the limitations granted in the current study, it confirms PID-5’s potential to differentiate subjects with different personality traits and it is the first study being conducted with the LPFS-SR on a Portuguese clinical sample, which contributes to its validation in Portugal.
Descrição
Dissertação de Mestrado, Psicologia (Área de Especialização em Psicologia Clínica e da Saúde - Psicologia Clínica Dinâmica), Universidade de Lisboa, Faculdade de Psicologia, 2020
Palavras-chave
Traços de personalidade Borderline Teses de mestrado - 2020