CALCULATION OF STEVENS' PSYCHOPHYSICAL FUNCTION BY MICROCOMPUTER
Abstract
The present paper introduces the use of a computacional
program for researchers who work in Psychophysics and
Perception. The program determines the exponent (n), the scale
constant (k) and the coefficient of determination (r2) of power
functions (R = k.Sn ) from raw data. The advantage of this
program is that it takes less time and is more precise in determining
individual power functions than hand calculation, especially
when a great number of responses for the same stimuli are
involved.
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References
Da Silva, J.A. (1985). Scales for perceived egocentric distance in a large open
field: Comparison of three psychophysical methods. American Journal of
Psychology, 98, 119-144.
Da Silva, J.A. & Fukusima, S.S. (1 986). Stability of individual psychophysical
functions for perceived distance in natural indoor and outdoor setting.
Perceptual and Motor Skills, 63, 891-902.
Da Silva, J.A. & Macedo, L. (1 983). Afunção-potência na percepção: significado
e procedimentos de cálculo do expoente. Arquivos Brasileiros de Psicologia,
34, 27-45.
Gescheider, G.A. (1976). Psychophysics: Method and theory. New Jersey:
Lawrence Erlbaum Associates.
Grillo, M.C.A. (1988). Turbo pascal. Rio de Janeiro: Livros Técnicos e Científicos
Editora S/A.
Kawamoto, E. & Da Silva, J.A. (1985). Comentários sobre a derivação das
funções psicofísicas e suas conseqüências. Psicologia, 11, 55-74.
Marks, L. (1974). Sensory processes: The new psychophysics. New York: Academic
Press.
Stevens, S.S. (1956). The direct estimation of sensory magnitudes: Loudness.
American Journal of Psychology, 69, 1-25.
Stevens, S.S. (1957). On the psychophysical law. Psychological Review, 64,
153-182.
Stevens, S.S. (1975). In G. Stevens (Ed.), Psychophysics: Introduction to its perceptual,
neural and social prospects. New York: Wiley-lnterscience.
field: Comparison of three psychophysical methods. American Journal of
Psychology, 98, 119-144.
Da Silva, J.A. & Fukusima, S.S. (1 986). Stability of individual psychophysical
functions for perceived distance in natural indoor and outdoor setting.
Perceptual and Motor Skills, 63, 891-902.
Da Silva, J.A. & Macedo, L. (1 983). Afunção-potência na percepção: significado
e procedimentos de cálculo do expoente. Arquivos Brasileiros de Psicologia,
34, 27-45.
Gescheider, G.A. (1976). Psychophysics: Method and theory. New Jersey:
Lawrence Erlbaum Associates.
Grillo, M.C.A. (1988). Turbo pascal. Rio de Janeiro: Livros Técnicos e Científicos
Editora S/A.
Kawamoto, E. & Da Silva, J.A. (1985). Comentários sobre a derivação das
funções psicofísicas e suas conseqüências. Psicologia, 11, 55-74.
Marks, L. (1974). Sensory processes: The new psychophysics. New York: Academic
Press.
Stevens, S.S. (1956). The direct estimation of sensory magnitudes: Loudness.
American Journal of Psychology, 69, 1-25.
Stevens, S.S. (1957). On the psychophysical law. Psychological Review, 64,
153-182.
Stevens, S.S. (1975). In G. Stevens (Ed.), Psychophysics: Introduction to its perceptual,
neural and social prospects. New York: Wiley-lnterscience.
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Published
2012-07-12
How to Cite
Sheiji Fukusima, S., Ribeiro, G., & Aparecido da Silva, J. (2012). CALCULATION OF STEVENS’ PSYCHOPHYSICAL FUNCTION BY MICROCOMPUTER. Psicologia: Teoria E Pesquisa, 4(2), 96–101. Retrieved from https://periodicos.unb.br/index.php/revistaptp/article/view/17038
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