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O efeito mediador/moderador da satisfação na relação entre sobrequalificação, desempenho e intenção de saída
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Abstract(s)
O objetivo desta tese foi desenvolver e validar uma Tarefa Stop-Signal Emocional Modificada (MESST), com recurso à tecnologia de rastreio ocular (Eye-tracking), para avaliar a resposta inibitória e os vieses atencionais em resposta a estímulos emocionais. Embora o estudo tenha sido conduzido numa amostra normativa, esta validação inicial visa, futuramente, aplicar o paradigma em populações clínicas, como a Perturbação Obsessivo-Compulsiva (POC), dado que a tarefa inclui estímulos idiossincráticos com potencial para explorar marcadores cognitivos relevantes para esta condição. A amostra foi composta por 33 participantes normativos (18-29 anos), sendo que o estudo avaliou variáveis como o StopSignal Reaction Time (SSRT) e métricas de Eye-tracking, incluindo a latência à primeira fixação e o tempo total de permanência no estímulo. Também se explorou como os traços de
impulsividade e ansiedade da amostra influenciam o desempenho na MESST. Os resultados indicam que estímulos emocionalmente carregados aumentam, significativamente, as dificuldades inibitórias e induzem vieses atencionais, sobretudo na manutenção do olhar.
Embora não tenha sido observada uma correlação significativa entre os traços de ansiedade e impulsividade nos marcadores centrais como o SSRT, latência à primeira fixação e tempo total de permanência do olhar nas funções cognitivas avaliadas, foi identificado que níveis mais elevados de impulsividade estão associados a uma menor precisão na avaliação emocional de
estímulos aversivos genéricos. A tecnologia de Eye-tracking permitiu uma análise contínua e detalhada do comportamento visual atencional, fornecendo uma compreensão mais aprofundada dos processos cognitivos associados à inibição e ao processamento emocional. Esta validação inicial fornece uma base sólida para continuar a validação e aplicação futura do paradigma em populações clínicas com POC.
The aim of this thesis was to develop and validate a Modified Emotional Stop-Signal Task (MESST), utilizing Eye-tracking technology to assess inhibitory control and attentional biases in response to emotional stimuli. Although the study was conducted on a normative sample, this initial validation is intended to support the future application of the paradigm in clinical populations, such as Obsessive-Compulsive Disorder (OCD), as the task includes idiosyncratic stimuli with the potential to explore relevant cognitive markers for this condition. The sample consisted of 33 normative participants (aged 18-29), and the study examined variables such as Stop-Signal Reaction Time (SSRT) and Eye-tracking metrics, including latency to first fixation and total dwell time on the stimulus. The study also explored how impulsivity and anxiety traits influenced MESST performance. The results indicated that emotionally charged stimuli significantly increased inhibitory difficulties and induced attentional biases, particularly in gaze maintenance. Although no significant correlation was observed between anxiety traits and impulsivity in central markers such as the SSRT, latency to first fixation and total gaze duration in the cognitive functions assessed, it was identified that higher levels of impulsivity are associated with lower accuracy in the emotional evaluation of generic aversive stimuli. The use of Eye-tracking technology provided a continuous and detailed analysis of attentional visual behavior, offering deeper insight into cognitive processes associated with inhibition and emotional processing. This initial validation provides a solid basis for further validation and future application of the paradigm in clinical populations with OCD.
The aim of this thesis was to develop and validate a Modified Emotional Stop-Signal Task (MESST), utilizing Eye-tracking technology to assess inhibitory control and attentional biases in response to emotional stimuli. Although the study was conducted on a normative sample, this initial validation is intended to support the future application of the paradigm in clinical populations, such as Obsessive-Compulsive Disorder (OCD), as the task includes idiosyncratic stimuli with the potential to explore relevant cognitive markers for this condition. The sample consisted of 33 normative participants (aged 18-29), and the study examined variables such as Stop-Signal Reaction Time (SSRT) and Eye-tracking metrics, including latency to first fixation and total dwell time on the stimulus. The study also explored how impulsivity and anxiety traits influenced MESST performance. The results indicated that emotionally charged stimuli significantly increased inhibitory difficulties and induced attentional biases, particularly in gaze maintenance. Although no significant correlation was observed between anxiety traits and impulsivity in central markers such as the SSRT, latency to first fixation and total gaze duration in the cognitive functions assessed, it was identified that higher levels of impulsivity are associated with lower accuracy in the emotional evaluation of generic aversive stimuli. The use of Eye-tracking technology provided a continuous and detailed analysis of attentional visual behavior, offering deeper insight into cognitive processes associated with inhibition and emotional processing. This initial validation provides a solid basis for further validation and future application of the paradigm in clinical populations with OCD.
Description
Dissertação de Mestrado apresentada no ISPA - Instituto Universitário de Ciências Psicológicas, Sociais e da Vida, para obtenção de grau de Mestre na especialidade de Neurociências Cognitivas e
Comportamentais.
Keywords
Satisfação laboral Sobrequalificação Desempenho Intenção de saída Contact centers Eye-tracking Inhibitory control Attentional bias Stop-signal reaction time Obsessive-compulsive disorder Impulsivity Anxiety Emotional stimuli Latency to first Fixation Gaze maintenance Modified emotional stop-signal task