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Joint control and generalized nonidentity matching: Saying when something is not.
The Analysis of Verbal Behavior
|April 6, 2012
Summary
This study shows that behavior can be controlled by the absence of stimuli, using matching-to-sample tasks. This research provides a behavioral explanation for understanding discrepancies without cognitive theories.
Area of Science:
- Behavioral Psychology
- Applied Behavior Analysis
Background:
- Understanding stimulus control in behavior is crucial.
- Previous research often relies on cognitive mediators to explain complex behaviors.
Purpose of the Study:
- To investigate how the absence of a stimulus controls behavior.
- To provide a behavioral account for sensitivity to discrepancies.
Main Methods:
- Trained four children in nonidentity matching-to-sample.
- Trained four children in identity matching-to-sample as a control.
- Used mediating responses where selection was based on repeating (identity) or failing to repeat (nonidentity) a sample tact.
Main Results:
- Both groups demonstrated successful generalization of their performances.
- Generalization indicated control by general features, not stimulus-specific ones.
- Comparison selection acted as an autoclitic report of other verbal behavior.
Conclusions:
- Generalized nonidentity matching demonstrates behavioral control by stimulus absence.
- Sensitivity to discrepancies can be explained behaviorally.
- This approach avoids the need for hypothesized cognitive mediators.
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