Gregson, R A Sourness and bitterness: confusions over sequences of taste judgements. [electronic resource] - British journal of psychology (London, England : 1953) Feb 1973 - 71-6 p. digital Publication Type: Journal Article ISSN: 0007-1269 Standard No.: 10.1111/j.2044-8295.1973.tb01328.x doi Subjects--Topical Terms: AdultAnalysis of VarianceCitratesDifferential ThresholdDiscrimination, PsychologicalHumansJudgmentPsychophysicsQuinineTasteTongue--physiology