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  • Title: Olfactory enrichment improves the recognition of individual components in mixtures.
    Author: Mandairon N, Stack C, Linster C.
    Journal: Physiol Behav; 2006 Oct 30; 89(3):379-84. PubMed ID: 16904713.
    Abstract:
    Odor mixtures can exhibit synthetic (the mixture is qualitatively different from its components) or elemental properties (the components are recognizable). We tested how prior olfactory enrichment affects the recognition of individual components in binary mixtures. Experimental rats were exposed to pairs of similar odors for one-hour periods twice daily over 20 days. Spontaneous discrimination between the binary mixture and the individual components of similar pairs of odors was tested before and after the odor enrichment. We found that, after the enrichment period, rats could discriminate components in binary mixtures that had not been discriminated prior to the enrichment period, and that this increase in discrimination capability was not always specific to the odorants used during the enrichment period.
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