Qualitative identification of the taste of weak sucrose-sodium chloride mixture stimuli

Near-threshold mixtures of sucrose and sodium chloride were shown to elicit acidic or bitter sensations as well as, or instead of, sweetness and saltiness. The probability of a bitter response was relatively stable and consistent with error due to residual noise in the identification task. The acidic response varied in probability with the sodium chloride concentration, and was generally substitutive for a sweet response.