Relação entre escalas de validade do MMPI e o Outcome cognitivo em TCE referenciados por seguradoras

Abstract

Theoretical Framework: The use of performance validity tests in psychological and neuropsychological evaluation processes is done on a recurrent basis. In groups of litigants, the contextualization of the results may be questioned, because, according to the literature, in this group of subjects there is a greater chance of insufficient effort in performing the tests. This is likely to happen because there may be prospects of secondarygain, such as monetary compensation, early retirement or other types of compensation. Given the relevance of the evaluation of insufficient effort, it seemed pertinent to study possible changes in the neuropsychological profile of these subjects, as well as its relationship with the scales of validity of the Mini-mult L, F, K, particularly the Goughindex, in a group of subjects involved in situations of litigation and in other individual streated in a brain injury rehabilitation clinic. This study was conducted with a sample ofPortuguese subjects. Methodology: This retrospective study uses a convenience sample consisting of 36 subjects, aged between 23 and 69 years, who were divided into two groups by the value obtained in the Gough index through the cutoff point >12 "simulators" and "nonsimulators". Data regarding cognitive functions were analyzed through several tests: psychological data validity scales, psychic suffering intensity index, neuropsychological tests that evaluate superior nervous functions and several specific domains, such as memory, concentrated and sustained attention, learning capacity and verbal memory,visual-motor coordination, initiative and perseverance. Conclusions: Significant differences between groups were found in the cognitive tests:TMT-B (Errors, Time of execution; Ratio B/A) TP (dispersion index), WCST (number of tests administered, number of errors, number of persevering responses and number of concluded categories). MDD is a significant predictor of the Gough index. In the "non simulator" group, significant differences were found between the two evaluation moments, in the tests that evaluate the subject's abstraction capacity (MPRc) and learning capacity (AVLT - Total Learning). A correlation between IGS and Gough's index was found.

Date of Award	20 May 2021
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Filipa Ribeiro (Supervisor) & Norberto Pereira (Supervisor)