Stacey N E, Kyle A L
Physiol Behav. 1983 Apr;30(4):621-8. doi: 10.1016/0031-9384(83)90231-7.
The paired olfactory tracts (OTs) of goldfish each have a lateral (LOT) and medial (MOT) olfactory tract, the latter with medial (mMOT) and lateral (lMOT) subdivisions. Bilateral OT section (OTX) reduced, while unilateral OT section (UNI) did not impair, male sexual behavior and feeding responses to a complex food odor; in contrast, female sexual behavior, induced in both sexes by prostaglandin treatment, was little affected by OTX. Experiments in which control fish were given UNI and treatment groups received UNI plus selective section of the remaining OT assessed the role of the OT subdivisions in the two olfactory-influenced behaviors (male sexual behavior and feeding). LOT section did not affect courtship, while MOT section reduced courtship to the low levels seen in OTX males; within the MOT, the mMOT may be more important than the lMOT for courtship expression. In contrast to male sexual behavior, feeding responses were less affected by MOT than LOT section. With respect to male sexual behavior, these findings demonstrate differential functions for the anatomically distinct subdivisions of the goldfish olfactory tracts, possibly related to their distinct terminal fields within the telencephalon.
金鱼成对的嗅束（OTs）各有一条外侧嗅束（LOT）和内侧嗅束（MOT），后者又分为内侧（mMOT）和外侧（lMOT）亚区。双侧嗅束切断（OTX）会降低，而单侧嗅束切断（UNI）不会损害雄性性行为以及对复杂食物气味的摄食反应；相反，由前列腺素处理诱导的两性的雌性性行为受OTX的影响很小。在实验中，对照鱼接受UNI，而处理组接受UNI加上对剩余嗅束的选择性切断，以此评估嗅束亚区在两种受嗅觉影响的行为（雄性性行为和摄食）中的作用。切断LOT不影响求偶行为，而切断MOT会将求偶行为降低到OTX雄性所见的低水平；在MOT内，对于求偶行为的表达，mMOT可能比lMOT更重要。与雄性性行为相反，摄食反应受MOT切断的影响小于LOT切断。关于雄性性行为，这些发现表明金鱼嗅束在解剖学上不同的亚区具有不同的功能，这可能与其在端脑内不同的终末区域有关。
