Localization of odor-induced oscillations in the bumblebee antennal lobe
Localization of odor-induced oscillations in the bumblebee antennal lobe
复制标题
熊蜂触角叶中气味引起的振荡的定位
DOI：
10.1016/s0304-3940(01)02385-0
复制
发表时间：
2001
影响因子：
2.5
通讯作者：
R. Kanzaki
中科院分区：
文献类型：
--
作者：
K. Okada;R. Kanzaki
气味诱导的振荡信号在各种昆虫的气味识别中已有报道。为了了解动态嗅觉编码在一阶嗅觉中枢，即触角叶，振荡信号的定位被用一种电压敏感染料的光记录技术研究。我们在这里提出的第一个报告可视化气味诱导的振荡在大黄蜂触角叶的空间分布模式。用最大熵方法分析气味诱导的光学响应，可以直观地看到触角叶中的振荡区域。振荡信号通常局限于与单个或多个肾小球结构相对应的区域。我们的结果表明，从气味诱导的群体反应，即振荡的角度来看，肾小球结构可能是气味处理的功能单位。
Odor-induced oscillatory signals have been reported in odor discrimination in various insects. To understand dynamic olfactory coding in the first order olfactory center, the antennal lobe, localization of oscillatory signals was investigated using an optical recording technique with a voltage-sensitive dye. We present here the first report of visualization of the spatial distribution pattern of odor-induced oscillations in the bumblebee antennal lobe. Analysis of the odor-induced optical responses by a maximum entropy method allowed visualization of oscillatory regions in the antennal lobe. The oscillatory signals were usually localized to regions corresponding to a single or several glomerular structures. Our results suggest that glomerular structures may be functional units of odor processing from the viewpoint of odor-induced population responses, the oscillations.