[Electrophysiological study of olfactory sensitivity in the carp]

Responses of single olfactory tract fibers cut off from prosencephalon to adequate stimulation of the carp olfactory epithelium revealed that the threshold sensitivity to aminoacids fell in the range between 10(-12) and 10(-10) M, that the magnitude and the form of the response depended on the concentration and type of stimulus as well as on the level of background activity. The results are compared with the biochemical data obtained earlier.