Yamashita Toshiya, Haupt S Shuichi, Ikeno Hidetoshi, Ai Hiroyuki
Department of Earth System Science, Fukuoka University, Fukuoka 814-0180, Japan.
Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan Department of Biological Cybernetics, Bielefeld University, 33615 Bielefeld, Germany.
J Exp Biol. 2016 Jan;219(Pt 1):12-6. doi: 10.1242/jeb.123356. Epub 2015 Nov 13.
The odor localization strategy induced by odors learned via differential conditioning of the proboscis extension response was investigated in honeybees. In response to reward-associated but not non-reward-associated odors, learners walked longer paths than non-learners and control bees. When orange odor reward association was learned, the path length and the body turn angles were small during odor stimulation and greatly increased after stimulation ceased. In response to orange odor, bees walked locally with alternate left and right turns during odor stimulation to search for the reward-associated odor source. After odor stimulation, bees walked long paths with large turn angles to explore the odor plume. For clove odor, learning-related modulations of locomotion were less pronounced, presumably due to a spontaneous preference for orange in the tested population of bees. This study is the first to describe how an odor-reward association modulates odor-induced walking in bees.
我们研究了蜜蜂通过对伸吻反应进行差异条件训练而习得的气味所诱导的气味定位策略。与未学习的蜜蜂和对照蜜蜂相比，学习过的蜜蜂在面对与奖励相关而非与无奖励相关的气味时，会走更长的路径。当学习到橙色气味与奖励相关联时，在气味刺激期间路径长度和身体转动角度较小，而在刺激停止后大幅增加。面对橙色气味时，蜜蜂在气味刺激期间会在局部区域左右交替转弯行走，以寻找与奖励相关的气味源。气味刺激后，蜜蜂会以大转弯角度走长路径来探索气味羽流。对于丁香气味，与学习相关的运动调节不太明显，可能是由于在测试的蜜蜂群体中对橙色存在自发偏好。这项研究首次描述了气味 - 奖励关联如何调节蜜蜂的气味诱导行走。
