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Titolo:
SAME-DIFFERENT TEXTURE-DISCRIMINATION IN PIGEONS - TESTING COMPETING MODELS OF DISCRIMINATION AND STIMULUS INTEGRATION
Autore:
COOK RG; WIXTED JT;
Indirizzi:
TUFTS UNIV,DEPT PSYCHOL,PAIGE HALL MEDFORD MA 02155 UNIV CALIF SAN DIEGO,DEPT PSYCHOL LA JOLLA CA 92093
Titolo Testata:
Journal of experimental psychology. Animal behavior processes
fascicolo: 4, volume: 23, anno: 1997,
pagine: 401 - 416
SICI:
0097-7403(1997)23:4<401:STIP-T>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
SHORT-TERM-MEMORY; EVENTS; FOOD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
39
Recensione:
Indirizzi per estratti:
Citazione:
R.G. Cook e J.T. Wixted, "SAME-DIFFERENT TEXTURE-DISCRIMINATION IN PIGEONS - TESTING COMPETING MODELS OF DISCRIMINATION AND STIMULUS INTEGRATION", Journal of experimental psychology. Animal behavior processes, 23(4), 1997, pp. 401-416

Abstract

The choice behavior of 6 pigeons performing a multidimensional same-different texture discrimination was examined. On each trial, they had to choose among 2 choice hoppers depending on whether a color, shape, or redundant (color and shape) target signal was present or not in a textured stimulus. Receiver operating characteristic (ROC) curves were produced by variations in the a priori signal presentation probabilities across conditions. Quantitative analyses of these ROC curves were used to evaluate different competing theories of discrimination (signaldetection vs. high-threshold-default response models) and informationintegration (independent observations, additive integration, unidimensional models). The results suggested the structure of the pigeons' choice behavior in this same-different discrimination was best describedby an unequal variance signal detection model involving a unidimensional evidence variable (e.g., degree of difference).

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Documento generato il 21/09/20 alle ore 06:17:29