Interactions of numerical and temporal stimulus characteristics on the control of response location by brief flashes of light |
| |
Authors: | Fetterman J Gregor Killeen P Richard |
| |
Institution: | (1) Department of Psychology, Indiana University Purdue University, Indianapolis, 402 N. Blackford St, Indianapolis, IN 46202, USA;(2) Arizona State University, Tempe, AZ, USA |
| |
Abstract: | Pigeons pecked on three keys, responses to one of which could be reinforced after 3 flashes of the houselight, to a second
key after 6, and to a third key after 12. The flashes were arranged according to variable-interval schedules. Response allocation
among the keys was a function of the number of flashes. When flashes were omitted, transitions occurred very late. Increasing
flash duration produced a leftward shift in the transitions along a number axis. Increasing reinforcement probability produced
a leftward shift, and decreasing reinforcement probability produced a rightward shift. Intermixing different flash rates within
sessions separated allocations: Faster flash rates shifted the functions sooner in real time, but later in terms of flash
count, and conversely for slower flash rates. A model of control by fading memories of number and time was proposed. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|