Ribeiro, Sidarta Tollendal GomesScott, Rafael Neia Barbosa2016-06-022016-06-022015-06-22SCOTT, Rafael Neia Barbosa. Relação dos sonhos antecipatórios com desempenho cognitivo, afeto e comportamento da vigília. 2015. 201f. Tese (Doutorado em Psicobiologia) - Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, 2015.https://repositorio.ufrn.br/jspui/handle/123456789/20577Dreams are important to simulate possible scenarios of success and failure to maximize adaptive success of the individual, by way of risk-less learning able to guide waking behavior. We performed two different experiments using: (1) the examination for admission to the university; (2) a videogame simulation of a prey-predator conflict. For experiment (1), we compared the answers in a questionnaire of 255 candidates to the UFRN 2010 examination (n = 255) with performance. Dreams related to the examination were reported by 44.3% of the participants, and their occurrence was associated with higher scores of fear and apprehension, and major changes in daily life, mood and sleep. We found a positive correlation between changes in daily life and performance among those who dreamed about the examination. In experiment (2), we used as a task a first person shooter videogame. For each session, two participants played against each other, one in the role of Predator (seek and kill the opponent), and the other in the role of Prey (find and collect items); both participants were monitored electrophysiologically (EEG, ECG, EOG e EMG). Most of the volunteers (53.8%, n = 26) reported dreams related to the game. Dreaming with the task was associated with increased mean heart activity during game playing. Preys who dreamt about the game showed gains in a quantitative score of Goal achievement, while those who did not dream presented score losses. Analyses of cardiac variability and sleep patterns showed greater stress among Preys. Dreaming about the game was related to decreased aggressive behavior towards the Predator, with more efficient foraging, an apparent optimization of the fight-or-flight response. Finally, we found an association between oneiric activity and the reduction of violent interactions between the participants from Training to Test, which suggests a social function for dreams in humans. Altogether, the experiments support the notion that dreams related to waking-life challenges play an adaptive role.Acesso AbertoSonoSonhosAprendizadoVestibularVideogamesdoctoralThesisCNPQ::CIENCIAS BIOLOGICAS: PSICOBIOLOGIA