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Updated: Apr 28, 2026

Olfactory Context Dependent Memory: Direct Presentation of Odorants
Published on: September 18, 2018
The effect of context change upon long-term memory of CS duration
1Universidad del País Vasco, Facultad de Psicología, Apartado 1.249, 20080 San Sebastián, Spain.
Abstract:
An experiment with rats investigated forgetting of inhibition of delay in the conditioned suppression paradigm. The combined effects of contextual change and retention interval were tested. After a reliable temporal discrimination was reached, half of the rats received a test in the training context after a retention interval of 3 or 20 days. The other half received it in a different but equally familiar context at either retention interval. The longest retention interval flattened the temporal discrimination gradient and increased suppression to the CS. A similar but weaker pattern was found with the change of context; this effect was independent of the retention interval. The implications for retrieval and interference theory [Bouton, M.E., 1993. Psychol. Bull., 114: 80-99] and hypotheses concerning the forgetting of specific features of stimuli over time [Riccio, D.C., Richardson, R. and Ebner, D.L., 1984. Psychol. Bull., 96: 152-165] are discussed.
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