Temporal Specificity in Pavlovian-Toinstrumental Transfer

Autor/inn/en	Matell, Matthew S.; Della Valle, Rebecca B.
Titel	Temporal Specificity in Pavlovian-Toinstrumental Transfer
Quelle	In: Learning & Memory, 25 (2018) 1, S.8-20 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1072-0502
DOI	10.1101/lm.046383.117
Schlagwörter	Operant Conditioning; Experiments; Animals; Time; Intervals; Visual Stimuli; Auditory Stimuli; Cues; Expectation; Rewards + Suchen Sie Ihr Suchwort? Operante Konditionierung; Erprobung; Animal; Tier; Tiere; Zeit; Auditive Stimulation; Stichwort; Expectancy; Erwartung; Reward; Belohnung
Abstract	Presentation of a previously trained Pavlovian conditioned stimulus while an organism is engaged in operant responding can moderate the rate of responding, a phenomenon known as Pavlovian-to-instrumental transfer. Although it is well known that Pavlovian contingencies will generate conditioned behavior that is temporally organized with respect to the arrival of the predicted outcome, little work has examined the temporal dynamics of responding during Pavlovian-instrumental transfer. We trained rats using a fixed time 60-sec, fixed time 120-sec, or random time 60-sec schedule in an appetitive Pavlovian task, and found that presentation of the conditioned stimulus potentiated operant responding in a manner that reflected these previously established temporal expectancies. Further, this temporal specificity conformed to the scalar property as seen with other forms of interval timing behavior. Surprisingly, this effect was only seen when the conditioned stimulus was a visual cue, but not when it was an auditory cue. These data suggest that the motivational processes triggered by Pavlovian cues are not static, but fluctuate in strength as a function of temporally specific expectations of reward. (As Provided).
Anmerkungen	Cold Spring Harbor Laboratory Press. 500 Sunnyside Boulevard, Woodbury, NY 11797-2924. Tel: 800-843-4388; Tel: 516-367-8800; Fax: 516-422-4097; e-mail: cshpres@cshl.edu; Web site: http://learnmem.cshlp.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01