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  • Title: Hunger alters the expression of acquired hedonic but not sensory qualities of food-paired odors in humans.
    Author: Yeomans MR, Mobini S.
    Journal: J Exp Psychol Anim Behav Process; 2006 Oct; 32(4):460-6. PubMed ID: 17044748.
    Abstract:
    To test whether expression of hedonic and sensory odor qualities acquired by association with sweet and bitter tastes depend on hunger state, hungry volunteers experienced odors paired with sucrose, quinine, or water and then were tested under different hunger states manipulated with energy preloads. Acquired liking for sucrose-paired odors was evident following a low-energy or control preload but not a high-energy preload; however, odor sweetness increased in all preload conditions. Acquired dislike and increased bitterness of quinine-paired odors were independent of preloading. These data demonstrate hunger-dependent expression of acquired liking for flavors through flavor-flavor associations in humans and demonstrate independence between acquired hedonic and sensory qualities of odors.
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