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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Efeito da coes?o sem?ntica sobre a discrimina??o de itens emocionais em testes de mem?ria de reconhecimento de palavras

Leite, Raphael Bender Chagas 11 April 2011 (has links)
Made available in DSpace on 2014-12-17T15:37:04Z (GMT). No. of bitstreams: 1 RaphaeBCL.pdf: 268039 bytes, checksum: f203ccc208992cba24f72f836ef9ecd2 (MD5) Previous issue date: 2011-04-11 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Highly emotional itens are best remembered in emotional memory tasks than neutral items. An example of emotional item that benefits declarative memory processes are the taboo words. These words undergo from a conventional prohibition, imposed by tradition or custom. Literature suggests that the strongest recollection these words is due to emotional arousal, as well as, the fact that they form a cohesive semantic group, which is a positive additive effect. However, studies with semantic lists show that cohesion can have a negative effect of interference, impairing memory. We analyzed, in two experiments, the effect of arousal and semantic cohesion of taboo words on recognition tests, comparing with into two other word categories: semantically related and without emotional arousal (semantic category) and neutral, with low semantic relation (objects). Our results indicate that cohesion has interfered whith the performance of the test by increasing the number of false alarms. This effect was strongly observed in the semantic category of words in both experiments, but also in the neutral and taboo words, when both were explicitly considered as semantic categories through the instruction of the test in Experiment 2. Despite the impairment induced by semantic cohesion in both experiments, the taboo words were more discriminated than others, and this result agrees with the indication of the emotional arousal as the main factor for the best recollection of emotional items in memory tests / Itens com alto grau de alerta emocional s?o melhor recordados em tarefas de mem?ria do que itens neutros. Um tipo de item emocional que beneficia os processos de mem?ria declarativa s?o as palavras tabus. Estas s?o palavras que sofrem uma proibi??o convencional imposta por tradi??o ou costume. A literatura sugere que o melhor desempenho destas palavras ? devido ao alerta emocional e tamb?m ao fato de formarem um grupo sem?ntico coeso, constituindo um efeito positivo aditivo. Entretanto, estudos com listas sem?nticas apontam que a coes?o pode produzir um efeito negativo de interfer?ncia, prejudicando a recorda??o. Analisamos, em dois experimentos, o efeito do alerta e da coes?o sem?ntica de palavras tabus em testes de reconhecimento, comparando com palavras agrupadas em duas outras categorias: com rela??o sem?ntica e sem alerta (categoria sem?ntica) e neutras ou com pouca rela??o sem?ntica (categoria objetos). Nossos resultados apontaram que a coes?o prejudicou o desempenho no teste por aumentar o n?mero de alarmes falsos. Esse efeito foi fortemente observado nas palavras da categoria sem?ntica em ambos os experimentos, mas tamb?m nas palavras tabus e nas neutras, quando ambas foram explicitamente consideradas como categorias sem?nticas por meio da instru??o do teste do experimento 2. Apesar do preju?zo da coes?o sem?ntica, em ambos os experimentos as palavras tabus foram mais discriminadas do que as demais e esse resultado concorda com a indica??o do alerta emocional como principal fator para o melhor desempenho de itens emocionais em testes de mem?ria

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