Differential taste responses of mouse chorda tympani and glossopharyngeal nerves to sugars and amino acids.

The differential taste responses of the chorda tympani (CT) and the glossopharyngeal (GL) nerves in preweanling and adult mice were examined by comparing magnitudes of responses to six sugars and 10 amino acids. The results indicate that for sugars the responses of the CT nerve are greater than those of the GL nerve while for umami and essential amino acids the responses of the GL nerve are greater than those of the CT nerve. Such differential taste responses of the CT and GL nerves does not prominently change during development.