title: Contextual effects in the perception of quinine HCl/NaCl mixtures.
abstract: Stimulus distribution, stimulus spacing and stimulus range affect mean intensity ratings of solutions of unmixed tastants. The present study compares contextual effects for mixture ratings with those for unmixed stimuli: if ratings for mixed and unmixed stimuli are differentially affected by context, the degree of mixture suppression inferred from the responses is context-dependent. Bitterness intensity ratings for unmixed quinine and quinine HCl/NaCl mixtures were not differentially affected by shifts in stimulus frequency distribution. The subjects' tendency to be consistent in their responses to identical stimuli, results in a transfer of stimulus context of previous sessions to the next.
authors.affiliation: Department of Marketing, Agricultural University, Wageningen, The Netherlands.
authors.forename: H N
authors.initials: HN
authors.lastname: Schifferstein
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D011803:Quinine / Q000494:pharmacology*; D012965:Sodium Chloride / Q000494:pharmacology*; D013649:Taste / Q000187:drug effects* / Q000502:physiology
chemical_list: D012965:Sodium Chloride; D011803:Quinine