Navegando por Palavras-chave "visual perception"

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    Brazilian norms for the International Affective Picture System (IAPS): comparison of the affective ratings for new stimuli between Brazilian and North-American subjects
    (Instituto de Psiquiatria da Universidade Federal do Rio de Janeiro, 2008-01-01) Lasaitis, Cristina [UNIFESP]; Ribeiro, Rafaela Larsen [UNIFESP]; Bueno, Orlando Francisco Amodeo [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    OBJECTIVE: The study presents the Brazilian norms for 240 new stimuli from International Affective Picture System (IAPS), a database of affective images widely used in research, compared to the North-American normative ratings. METHODS: The participants were 448 Brazilian university students from several courses (269 women and 179 men) with mean age of 24.2 (SD = 7.8), that evaluated the IAPS pictures in the valence, arousal and dominance dimensions by the Self-Assessment Manikin (SAM) scales. Data were compared across the populations by Pearson linear correlation and Student's t-tests. RESULTS: Correlations were highly significant for all dimensions; however, Brazilians' averages for arousal were higher than North-Americans'. CONCLUSIONS: The results show stability in relation to the first part of the Brazilian standardization and they are also consistent with the North-American standards, despite minor differences relating to interpretation of the arousal dimension, demonstrating that IAPS is a reliable instrument for experimental studies in the Brazilian population.
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    A influência da experiência motora no padrão de busca visual em atletas de futebol, tênis e handebol
    (Universidade Federal de São Paulo (UNIFESP), 2015-08-31) Lago, Olival Cardoso do [UNIFESP]; Schor, Paulo Schor [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Objective: To analyze the influence of motor experience in visual search pattern athletes during motor activity view known (Specialist) and not known (not expert). Method of eye movements were analyzed volunteers the task of visualizing the penalty in football, 7-meter throw in handball and serve in tennis. Volunteers were expert in only one of the modalities. In a block volunteers observed the mode which specializes in the other Block noted that the procedures were not experts. Analysis was conducted distribution trace of eye movements, and evaluating the number of fastenings in the areas relevant to the task. Results: The data variability sample were compared using analysis of patterns of fixations in the region of interest, with the athletes in presenting compatible screening standard and those shown in studies involving the modalities studied. Conclusion: The descriptive analysis in the current study presents the assumption that movements eye can not be considered just as stereotyped movements motor within a sequence. Here in proposed tests, visual search presented involvement of eye movements with the task at hand, even when the visual search was conducted in the manner in which the athletes had not no familiarity.