Two experiments investigated whether steady‐state interactions in multiple schedules
depend exclusively on the following schedule of reinforcement. Experiment 1 used a four …

Pigeons' pecks were maintained on concurrent variable‐interval 1‐min variable‐interval 3‐
min schedules of reinforcement, with a changeover delay of 2 sec. When changeover delay …

Five pigeons were trained in a concurrent‐chain procedure. In the initial links, equal
nonindependent variable‐interval schedules were available concurrently on two keys …

Pigeons were exposed to alternative pairs of variable‐interval schedules correlated with red
and green lights on one key (the food key). In one experimental chamber, responses on a …

Four experiments, each using the same six pigeons, investigated the effects of varying
component durations and component reinforcement rates in multiple variable‐interval …

Interval schedules of reinforcement maintained pigeons' key‐pecking in six experiments.
Each schedule was specified in terms of mean interval, which determined the maximum rate …

On a multiple fixed‐ratio 10 fixed‐ratio 100 schedule, pigeons pause for relatively long
periods of time before the fixed‐ratio 100 schedule. Only a short pause occurs before the …

Some phenomena of behavioral contrast in multiple schedules are reviewed, and three
accounts of contrast are considered. Rate changes within a constant schedule component …

Two different definitions of behavioral contrast have been used for multiple schedules. One,
interschedule, definition identifies contrast as changes in the rates of responding which …

Recent research on multiple schedule interactions is reviewed. Contrary to formulations that
view contrast as the result of elicited behavior controlled by the stimulus‐reinforcer …