当前位置： SCI文献检索 > JOURNAL OF THE EXPERIMENTAL ANALYSIS OF BEHAVIOR期刊下所有文献 > Timeout postponement without increased reinforcement frequency.

Timeout postponement without increased reinforcement frequency.

Abstract：

:Three experiments were conducted to examine pigeons' postponement of signaled extinction periods (timeouts) from a schedule of food reinforcement when such responding neither decreased overall timeout frequency nor increased the overall frequency of food reinforcement. A discrete-trial procedure was used in which a response during the first 5 s of a trial postponed an otherwise immediate 60-s timeout to a later part of that same trial but had no effect on whether the timeout occurred. During time-in periods, responses on a second key produced food according to a random-interval 20-s schedule. In Experiment 1, the response-timeout interval was 45 s under postponement conditions and 0 s under extinction conditions (responses were ineffective in postponing timeouts). The percentage of trials with a response was consistently high when the timeout-postponement contingency was in effect and decreased to low levels when it was discontinued under extinction conditions. In Experiment 2, the response-timeout interval was also 45 s but postponement responses increased the duration of the timeout, which varied from 60 s to 105 s across conditions. Postponement responding was maintained, generally at high levels, at all timeout durations, despite sometimes large decreases in the overall frequency of food reinforcement. In Experiment 3, timeout duration was held constant at 60 s while the response-timeout interval was varied systematically across conditions from 0 s to 45 s. Postponement responding was maintained under all conditions in which the response-timeout interval exceeded 0 s (the timeout interval in the absence of a response). In some conditions of Experiment 3, which were designed to control for the immediacy of food reinforcement and food-correlated (time-in) stimuli, responding postponed timeout but the timeout was delayed whether a response occurred or not. Responding was maintained for 2 of 3 subjects, suggesting that behavior was negatively reinforced by timeout postponement rather than positively reinforced by the more immediate presentation of food or food-correlated (time-in) stimuli.

journal_name

J Exp Anal Behav

journal_title

Journal of the experimental analysis of behavior

authors

Pietras CJ,Hackenberg TD

doi

10.1901/jeab.2000.74-147

subject

Has Abstract

pub_date

2000-09-01 00:00:00

pages

147-64

issue

eissn

0022-5002

issn

1938-3711

journal_volume

pub_type

杂志文章

在线工具

Timeout postponement without increased reinforcement frequency.