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"Causal reasoning" in rats: a reappraisal
D M Dwyer1, J Starns, R C Honey
1School of Psychology, Cardiff University, Cardiff, United Kingdom. dwyerdm@cardiff.ac.uk
Journal of Experimental Psychology. Animal Behavior Processes
|October 21, 2009
Summary
Rats do not appear to use causal reasoning as previously suggested. New findings support response competition, where lever pressing interferes with food approach, challenging Bayes net theories in animal learning.
Area of Science:
- Cognitive Science
- Animal Behavior
- Learning Theory
Background:
- Recent research suggested rats exhibit causal reasoning, aligning with Bayes net theories.
- This was based on reduced cue-elicited food approach when contingent on lever pressing.
Purpose of the Study:
- To re-evaluate the interpretation of findings regarding rat causal reasoning.
- To test the alternative hypothesis of response competition.
Main Methods:
- Replication of Experiments 1 and 2a from Blaisdell et al. (2006).
- Observation of lever pressing and food well approach behaviors in rats.
Main Results:
- Reciprocal patterns observed between lever pressing and food well approach.
- Findings directly support the response competition interpretation.
Conclusions:
- Results contradict the application of Bayes net theories to rat causal reasoning.
- Behavior is readily explained by traditional associative learning theory and response competition.
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