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Titolo:
SEPARATING THE EFFECTS OF TRIAL-SPECIFIC AND AVERAGE SAMPLE-STIMULUS DURATION IN DELAYED MATCHING-TO-SAMPLE IN PIGEONS
Autore:
HARTL JA; DOUGHERTY DH; WIXTED JT;
Indirizzi:
UNIV CALIF SAN DIEGO,DEPT PSYCHOL LA JOLLA CA 92093
Titolo Testata:
Journal of the experimental analysis of behavior
fascicolo: 2, volume: 66, anno: 1996,
pagine: 231 - 242
SICI:
0022-5002(1996)66:2<231:STEOTA>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
SHORT-TERM-MEMORY; TO-SAMPLE; RETENTION; INTERVAL;
Keywords:
DELAYED MATCHING TO SAMPLE; DELAY REDUCTION; SAMPLE DURATION; CHOICE; KEY PECK; PIGEON;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
J.A. Hartl et al., "SEPARATING THE EFFECTS OF TRIAL-SPECIFIC AND AVERAGE SAMPLE-STIMULUS DURATION IN DELAYED MATCHING-TO-SAMPLE IN PIGEONS", Journal of the experimental analysis of behavior, 66(2), 1996, pp. 231-242

Abstract

Pigeons were studied in two experiments employing delayed matching-sample (DMTS) tasks in which the reduction in delay to reinforcement signaled by the onset of the sample stimulus was manipulated by varying sample-stimulus duration. In Experiment 1, the duration of the sample stimulus was either 5 s or 10 s for one sample stimulus and 10 s or 20 s for the other. Subjects matched more frequently when the sample duration was 10 s following the sample associated with the shorter averageduration. This finding is analogous to the memory distribution effectfound by Honig (1987) in a successive DMTS task that varied retentioninterval. In Experiment 2, sample duration was either 5 s or 15 s. InPhases 1 and 3 each sample duration was correlated with a particular sample color, and in Phase 2 sample duration and color were uncorrelated. When sample duration was 5 s, subjects matched more frequently when sample duration and color were correlated than when they were uncorrelated. Overall, subjects matched more frequently when sample durationand color were correlated. The data from both experiments support Wixted's (1989) model, which states that one determinant of choice in a DMTS task is the delay-reduction value of the sample stimulus.

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Documento generato il 21/09/20 alle ore 04:18:00