期刊
JOURNAL OF NEUROPHYSIOLOGY
卷 106, 期 5, 页码 2437-2449出版社
AMER PHYSIOLOGICAL SOC
DOI: 10.1152/jn.01106.2010
关键词
dual olfactory pathway; nestmate recognition; cuticular hydrocarbons; two-photon calcium imaging; Camponotus floridanus
资金
- Deutsche Forschungsgemeinschaft (Bonn, Germany) [SFB 554/A6, SPP 1392/KL 1327]
- Bioimaging Center, University of Konstanz [LSM 510 Meta]
- German Excellence Initiative
Brandstaetter AS, Kleineidam CJ. Distributed representation of social odors indicates parallel processing in the antennal lobe of ants. J Neurophysiol 106: 2437-2449, 2011. First published August 17, 2011; doi: 10.1152/jn.01106.2010.-In colonies of eusocial Hymenoptera cooperation is organized through social odors, and particularly ants rely on a sophisticated odor communication system. Neuronal information about odors is represented in spatial activity patterns in the primary olfactory neuropile of the insect brain, the antennal lobe (AL), which is analog to the vertebrate olfactory bulb. The olfactory system is characterized by neuroanatomical compartmentalization, yet the functional significance of this organization is unclear. Using two-photon calcium imaging, we investigated the neuronal representation of multicomponent colony odors, which the ants assess to discriminate friends (nestmates) from foes (nonnestmates). In the carpenter ant Camponotus floridanus, colony odors elicited spatial activity patterns distributed across different AL compartments. Activity patterns in response to nestmate and nonnestmate colony odors were overlapping. This was expected since both consist of the same components at differing ratios. Colony odors change over time and the nervous system has to constantly adjust for this (template reformation). Measured activity patterns were variable, and variability was higher in response to repeated nestmate than to repeated nonnestmate colony odor stimulation. Variable activity patterns may indicate neuronal plasticity within the olfactory system, which is necessary for template reformation. Our results indicate that information about colony odors is processed in parallel in different neuroanatomical compartments, using the computational power of the whole AL network. Parallel processing might be advantageous, allowing reliable discrimination of highly complex social odors.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据