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Submitted on: 03 August 1999.
Revised on: 29 November 1999.
Accepted on: 23 January 2000.
___________________JOURNAL OF EXPERIMENTAL PSYCHOLOGY-ANIMAL LEARNING AND COGNITION
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Submitted on: 19 June 2022.
Revised on: 06 August 2022.
Accepted on: 14 September 2022.
___________________JOURNAL OF EXPERIMENTAL PSYCHOLOGY-ANIMAL LEARNING AND COGNITION
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