A Test of the Linear Feature Model
...
According to the m-out-of-n principle, the categorization rule can be defined as the quantitative combination (or sum) of feature values, plus a threshold criterion that separates the two categories. By this definition, each pattern with a negative feature sum (n=31) belongs to one category (NEG), while each pattern with a positive feature sum (n=31) belongs to the other category (POS).
...
As predicted by Wittgenstein and Ryle, the instances of a polymorphous class are not equally valid members of the categories to which they belong. Typicality of category membership varies along the summary dimension; one pattern in each class (with an absolute feature sum of four) is a perfect category member, patterns with an absolute sum of three are very typical, those with an absolute sum of two are intermediate, and those with an absolute sum of one are poor members.
Therefore, the only way to classify the stimuli exactly is to respond to their "feature summary". In order for successful categorization to occur we predicted that the pigeons must be able to:
Extract information about, or attend to, all four features of class membership
Equalize the weights given these features (or resist selective attention)
Combine this feature information in an additive manner.
References
Visual Categorization in Pigeons
Ludwig Huber/Institute of Zoology, University of Vienna
http://www.pigeon.psy.tufts.edu/avc/huber/feature.htm#A%20test
...
According to the m-out-of-n principle, the categorization rule can be defined as the quantitative combination (or sum) of feature values, plus a threshold criterion that separates the two categories. By this definition, each pattern with a negative feature sum (n=31) belongs to one category (NEG), while each pattern with a positive feature sum (n=31) belongs to the other category (POS).
...
As predicted by Wittgenstein and Ryle, the instances of a polymorphous class are not equally valid members of the categories to which they belong. Typicality of category membership varies along the summary dimension; one pattern in each class (with an absolute feature sum of four) is a perfect category member, patterns with an absolute sum of three are very typical, those with an absolute sum of two are intermediate, and those with an absolute sum of one are poor members.
Therefore, the only way to classify the stimuli exactly is to respond to their "feature summary". In order for successful categorization to occur we predicted that the pigeons must be able to:
Extract information about, or attend to, all four features of class membership
Equalize the weights given these features (or resist selective attention)
Combine this feature information in an additive manner.
References
Visual Categorization in Pigeons
Ludwig Huber/Institute of Zoology, University of Vienna
http://www.pigeon.psy.tufts.edu/avc/huber/feature.htm#A%20test
アクセス
トータル
ランキング
