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- W2116676802 abstract "O objetivo deste trabalho foi mensurar curvas de resposta ao contraste para os filtros de freqüências radiais de banda estreita de 1 e 4 cpg para padrões espaciais modulados pela função cilíndrica de Bessel (J0). Foram estimadas 15 curvas para cada filtro com o paradigma psicofísico de somação de resposta de supra-limiar aliado ao procedimento da escolha forçada. Participaram deste experimento 5 voluntários adultos com acuidade visual normal ou corrigida. Os resultados demonstraram somações máximas de limiar de contraste na freqüência de teste dos filtros de 1 e 4 cpg circundadas por inibições nas freqüências vizinhas às freqüências radiais de teste de cada filtro. Estes resultados são consistentes com a existência de filtros de freqüências radiais de banda estreita operando no sistema visual humano através do processo de somação ou inibição em faixa de freqüências específicas." @default.
- W2116676802 created "2016-06-24" @default.
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- W2116676802 date "2002-01-01" @default.
- W2116676802 modified "2023-09-26" @default.
- W2116676802 title "Percepção e processamento visual da forma em humanos: filtros de freqüências radiais de 1 e 4 cpg" @default.
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- W2116676802 doi "https://doi.org/10.1590/s0102-79722002000200015" @default.
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