Odorant discrimination by tiger salamanders after combined olfactory and vomeronasal nerve cuts

Tiger salamanders (Ambystoma tigrinum) were trained to respond to n-butyl acetate, 8.9×10-5 M; 2.7×10-6 M. Then they were given combined bilateral olfactory and vomeronasal nerve cuts (NC) or sham surgery (S). After surgery, animals were tested at two concentration levels for responding to butyl acetate and discriminative responding between butyl acetate and butyl alcohol. NC […]

Fear-like behavioral responses in mice in different odorant environments: Trigeminal versus olfactory mediation under low doses

Odors can have repulsive effects on rodents based on two complementary adaptive behaviors: the avoidance of predator odors (potentially dangerous) and the avoidance of trigeminal stimulants (potentially noxious). The present study aimed to compare the behavioral effects on mice of odors according to their trigeminal properties and ecological significance. We used three different odors: 2,4,5-trimethylthiazoline […]