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4273852
Lois et théories en psychophysique
Description
Tiré du chapitre 1
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lecture cours 1
psy 2055
cours 1
bachelors
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Audrey Plante
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Audrey Plante
over 8 years ago
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Resource summary
Lois et théories en psychophysique
Loi de Weber
Utilisée pour Difference threshold
Rel entre stimulus et sensation associée
Stimulus et sensation = Fraction constante
Loi de Fechner
Utilisée pour tout type de threshold
S = k logR
Sensation augmente moins vite que la réelle intensité du stimulus
Stevens' power law
Utilisée pour le Scaling
S = aI^b
Signal detection theory
Détecter un signal lorsqu'il y a du bruit
Discrimination de stimuli ambigüs
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