Rapid Acquisition of Bias in Signal Detection: Dynamics of Effective Reinforcement Allocation

Autor/inn/en	Hutsell, Blake; Jacobs, Eric A.
Titel	Rapid Acquisition of Bias in Signal Detection: Dynamics of Effective Reinforcement Allocation
Quelle	In: Journal of the Experimental Analysis of Behavior, 97 (2012) 1, S.29-49 (21 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0022-5002
Schlagwörter	Identification; Stimuli; Reinforcement; Classification; Animals; Discriminant Analysis; Models; Behavior Patterns; Change + Suchen Sie Ihr Suchwort? Identifikation; Identifizierung; Anreizsystem; Positive Verstärkung; Classification system; Klassifikation; Klassifikationssystem; Animal; Tier; Tiere; Diskriminanzanalyse; Analogiemodell; Wandel
Abstract	We investigated changes in bias (preference for one response alternative) in signal detection when relative reinforcer frequency for correct responses varied across sessions. In Experiment 1, 4 rats responded in a two-stimulus, two-response identification procedure employing temporal stimuli (short vs. long houselight presentations). Relative reinforcer frequency varied according to a 31-step pseudorandom binary sequence and stimulus duration difference varied over two values across conditions. In Experiment 2, 3 rats responded in a five-stimulus, two-response classification procedure employing temporal stimuli. Relative reinforcer frequency was varied according to a 36-step pseudorandom ternary sequence. Results of both experiments were analyzed according to a behavioral model of detection. The model was extended to incorporate the effects of current and previous session reinforcer frequency ratios on current-session performance. Similar to findings with concurrent schedules, effects on bias of relative reinforcer frequency were highest for the current session. However, carryover from reinforcer ratios of previous sessions was evident. Generally, the results indicate that bias can come under control of frequent changes in relative reinforcer frequency in both identification and classification procedures. (Contains 1 table and 10 figures.) (As Provided).
Anmerkungen	Society for the Experimental Analysis of Behavior. Available from: Indiana University Department of Psychology. Bloomington, IN 47405-1301. 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