Discriminability and Sensitivity to Reinforcer Magnitude in a Detection Task

Autor/inn/en	Alsop, Brent; Porritt, Melissa
Titel	Discriminability and Sensitivity to Reinforcer Magnitude in a Detection Task
Quelle	In: Journal of the Experimental Analysis of Behavior, 85 (2006) 1, S.41-56 (16 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0022-5002
DOI	10.1901/jeab.2006.91-04
Schlagwörter	Visual Stimuli; Reinforcement; Animals; Animal Behavior; Light; Behavioral Science Research; Color; Visual Discrimination + Suchen Sie Ihr Suchwort? Positive Verstärkung; Animal; Tier; Tiere; Tierverhalten; Licht; Colour; Farbbezeichnung; Farbe
Abstract	Three pigeons discriminated between two sample stimuli (intensities of red light). The difficulty of the discrimination was varied over four levels. At each level, the relative reinforcer magnitude for the two correct responses was varied across conditions, and the reinforcer rates were equal. Within levels, discriminability between the sample stimuli did not change systematically as reinforcer magnitude varied. Across levels, the sensitivity of behavior to changes in the reinforcer-magnitude ratio decreased as the discriminability between the sample stimuli increased. Subsequent analysis showed that this relation was limited to performance following only one of the sample stimuli, the dim red light that remained constant across all conditions. Extant behavioral models of signal detection cannot easily accommodate these results. (Contains 6 figures and 2 tables.) (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