Potenciais evocados relacionados à integração semântica entre estímulos musicais e faces em pessoas com alto desempenho musical

• Ano de defesa: 2013
• Autor(a) principal: Rocha, Viviane Cristina da
• Orientador(a): Boggio, Paulo Sérgio
• Banca de defesa: Gonçalves, Óscar Filipe Coelho Neves , Teixeira, Maria Cristina Triguero Veloz
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Presbiteriana Mackenzie
• Programa de Pós-Graduação: Distúrbios do Desenvolvimento
• Departamento: Psicologia
• País: BR
• Palavras-chave em Português: música; potenciais evocados; emoção; expressões faciais; treinamento musical
• Palavras-chave em Inglês: music; evoked potentials; emotion; facial expressions; musical training
• Área do conhecimento CNPq: CNPQ::CIENCIAS HUMANAS
• Link de acesso: http://dspace.mackenzie.br/handle/10899/22516

Based on new techniques of brain imaging and electrophysiological approaches, it is possible to better understand brain functioning when listening or making music. This study aims to investigate how emotional cues in melodies are integrated with emotional cues in faces and how musical training influences this particular task. Participated in the experiments 32 adults, brazilian Portuguese speakers, from 21 to 35 years of age, divided in 2 groups: G1, with professional classical singers and G2, with people who had no musical training during their lives. Both groups were submitted to the 2 experiments. Experiment 1 had 80 different melodies sung without words by a female professional singer, 40 related to happiness and 40 related to sadness. Every musical excerpt was followed by a female face, that could express happiness or sadness. Participants had to judge whether the face was congruent or incongruent with the preceding musical excerpt. In Experiment 2, 20 of the participants did a similar task. However, they had to judge whether the face was congruent or incongruent with a word that had previously appeared. For this experiment, there were 40 words, 20 related to happiness and 20 related to sadness. Behavioural data (task performance and reaction time) and electrophysiological data (amplitude of evoked potentials) were analyzed through a repeated measures ANOVA, with established error α=5%. The evoked potentials P1, N1, N170, EPN and N2 were individually analyzed. As results, there were no significant effects for group. However, in the electrophysiological data, there were significant effects for group in P1, N1, EPN and N2 for the first experiment, as such results were not found for the second experiment. These results indicate that there might be a possible influence of priming when it comes to subjects musical experience.