Made available in DSpace on 2014-12-17T15:36:56Z (GMT). No. of bitstreams: 1 RafaelNBS.pdf: 1024882 bytes, checksum: c829a50c3f00bc3a4f9a1f5bc84386a4 (MD5) Previous issue date: 2009-05-18 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / In most cultures, dreams are believed to predict the future on occasion. Several neurophysiological studies indicate that the function of sleep and dreams is to consolidate and transform memories, in a cyclical process of creation, selection and generalization of conjectures about the reality. The aim of the research presented here was to investigate the possible adaptative role of anticipatory dreams. We sought to determine the relationship between dream and waking in a context in which the adaptive success of the individual was really at risk, in order to mobilize more strongly the oneiric activity. We used the entrance examination of the Federal University of Rio Grande do Norte (UFRN) as a significant waking event in which performance could be independently quantified. Through a partnership with UFRN, we contacted by e-mail 3000 candidates to the 2009 examination. In addition, 150 candidates were approached personally. Candidates who agreed to participate in the study (n = 94) completed questionnaires specific to the examination and were asked to describe their dreams during the examinaton period. The examination performance of each candidate in the entrance examination was provided by the UFRN to the researcher. A total of 45 participants reported dreams related to the examination. Our results show a positive correlation between performance on the examination and anticipatory dreams with the event, both in the comparison of performance on objective and discursive, and in final approval (in the group that not dreamed with the exam the rate of general approval, 22,45%, was similar to that found in the selection process as a whole, 22.19%, while for the group that dreamed with the examination that rate was 35.56%). The occurrence of anticipatory dreams reflectes increased concern during waking (psychobiological mobilization) related to the future event, as indicated by higher scores of fear and apprehension, and major changes in daily life, in patterns of mood and sleep, in the group that reported testrelated dreams. Furthermore, the data suggest a role of dreams in the determination of environmentally relevant behavior of the vigil, simulating possible scenarios of success (dream with approval) and failure (nightmares) to maximize the adaptive success of the individual / Nas mais diversas culturas, atribui-se aos sonhos a capacidade de prever o futuro. Diversos estudos neurofisiol?gicos indicam que a fun??o do sono e dos sonhos ? consolidar e transformar mem?rias, em um processo c?clico de cria??o, sele??o e generaliza??o de conjecturas sobre a realidade. Com o objetivo de investigar cientificamente a poss?vel fun??o antecipat?ria dos sonhos, buscamos descrever a rela??o entre sonho e vig?lia subseq?ente num contexto em que o sucesso adaptativo do indiv?duo realmente estivesse em risco, de modo a mobilizar mais fortemente a atividade on?rica. Utilizamos o exame vestibular da Universidade Federal do Rio Grande do Norte (UFRN) como evento significativo da vig?lia. Atrav?s de uma parceria com a UFRN, contatamos por e-mail 3000 candidatos ao Vestibular 2009. Al?m disso, 150 candidatos foram abordados pessoalmente. Os candidatos que aceitaram participar do estudo (n=94) preencheram question?rios espec?ficos sobre a prova e lhes foi solicitado que relatassem um sonho relacionado ? prova, caso algum houvesse ocorrido nos dias que a antecederam. O desempenho final de cada candidato no exame vestibular foi fornecido ao pesquisador pela UFRN. Ao todo 45 participantes relataram que sonharam com a prova. Nossos resultados mostram uma correla??o positiva entre o desempenho na prova e sonhos antecipat?rios com o evento, tanto na compara??o do desempenho nas provas objetivas e discursivas, quanto na aprova??o final (no grupo que n?o sonhou com a prova o ?ndice de aprova??o geral, 22,45%, foi semelhante ao encontrado no processo seletivo como um todo, 22,19%; j? para o grupo que sonhou com a prova esse ?ndice foi 35,56%). A ocorr?ncia desses sonhos antecipat?rios refletiu uma maior preocupa??o na vig?lia (mobiliza??o psicobiol?gica) em torno do evento futuro (maiores escores de medo e apreens?o, al?m de maiores altera??es no cotidiano, nos padr?es de humor e de sono). Al?m disso, os dados sugerem um papel importante dos sonhos na determina??o de comportamentos ecologicamente relevantes da vig?lia, simulando poss?veis cen?rios de sucesso (sonhar com aprova??o) e fracasso (pesadelos) para maximizar o sucesso adaptativo do indiv?duo