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Temporal control by progressive-interval schedules of reinforcement
A Leinenweber1, S M Nietzel, A Baron
1University of Wisconsin-Milwaukee 53201, USA.
Journal of the Experimental Analysis of Behavior
|November 1, 1996
Summary
Progressive-interval schedules demonstrate temporal control in rats, showing patterns similar to fixed-interval schedules. Performances adjust to increasing interval durations, with pauses proportional to elapsed time.
Area of Science:
- Behavioral science
- Animal behavior studies
Background:
- Fixed-interval (FI) schedules are well-studied for temporal control.
- Progressive-interval (PI) schedules offer a novel approach to examining temporal dynamics.
Purpose of the Study:
- To analyze rat performances under progressive-interval schedules.
- To compare temporal control mechanisms between PI and FI schedules.
Main Methods:
- Five rats were trained on PI schedules with arithmetic increases in interval duration.
- Response patterns were analyzed over 90 sessions.
- Disruption resistance was tested using a variable ratio (VR) schedule.
Main Results:
- Extended training led to temporal control, with postreinforcement pauses increasing with interval duration.
- Pauses were proportional to the prevailing interval duration.
- Performance reverted to PI patterns after VR schedule disruption.
Conclusions:
- Progressive-interval schedules establish temporal control in rats, albeit slowly.
- Developed PI temporal control shares similarities with FI schedule control.
- Behavioral patterns under PI schedules show resilience to disruption.