Resistance to Change of Forgetting Functions and Response Rates

Autor/inn/en	Odum, Amy L.; Shahan, Timothy A.; Nevin, John A.
Titel	Resistance to Change of Forgetting Functions and Response Rates
Quelle	In: Journal of the Experimental Analysis of Behavior, 84 (2005) 1, S.65-75 (11 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0022-5002
Schlagwörter	Memory; Probability; Reinforcement; Intervals; Resistance to Change; Experiments; Stimuli; Comparative Analysis; Animals; Behavior; Discrimination Learning + Suchen Sie Ihr Suchwort? Gedächtnis; Wahrscheinlichkeitsrechnung; Wahrscheinlichkeitstheorie; Positive Verstärkung; Erprobung; Anreizsystem; Animal; Tier; Tiere; Lernen; Lernprozess
Abstract	This experiment examined the effects of reinforcement probability on resistance to change of remembering and response rate. Pigeons responded on a two- component multiple schedule in which completion of a variable-interval 20-s schedule produced delayed matching-to-sample trials in both components. Each session included four delays (0.1 s, 2 s, 4 s, and 8 s) between sample termination and presentation of comparison stimuli in both components. The two components differed in the probability of reinforcement arranged for correct matches (i.e., rich, p = 0.9; lean, p = 0.1). Response rates during the variable-interval portion of the procedure were higher in the rich component during baseline and more resistant to the disruptive effects of intercomponent food and extinction. Forgetting functions were constructed by examining matching accuracy as a function of delay duration. Baseline accuracy was higher in the rich component than in the lean component as measured by differences in the y-intercept of the forgetting functions (i.e., initial discrimination), rather than from differences in the slope of the forgetting function (i.e., rate of forgetting). Intercomponent food increased the rate of forgetting relatively more in the lean component than in the rich component, but initial discrimination was not systematically affected. Extinction reduced initial discrimination relatively more in the lean component than in the rich component, but did not systematically affect rate of forgetting. These results are consistent with our previous data suggesting that, as for response rate, accuracy and resistance to change of discriminating are positively related to rate of reinforcement. These data also suggest that the disruptability of remembering depends on the conditions of reinforcement, but the way in which remembering is disrupted depends on the nature of the disruptor. (Contains 1 table and 6 figures.) (As Provided).
Anmerkungen	Society for the Experimental Analysis of Behavior. Available from: Indiana University Department of Psychology. Bloomington, IN 47405. Tel: 812-334-0395; Fax: 812-855-4691; e-mail: jeab@indiana.edu; Web site: http://seab.envmed.rochester.edu/jeab/index.html
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10