Differential parallel processing of olfactory information in the honeybee, Apis mellifera L.
Differential parallel processing of olfactory information in the honeybee, Apis mellifera L.
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DOI：
10.1007/s00359-002-0310-1
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发表时间：
2002-06-01
影响因子：
2.1
通讯作者：
Menzel, R
中科院分区：
文献类型：
--
作者：
Müller, D;Abel, R;Menzel, R
两个不同的神经通路连接的第一个嗅觉神经元，触角叶，更高的整合领域，如蘑菇体，通过触角叶投射神经元。细胞内记录用于解决神经解剖学特征是否影响气味编码特性的问题。我们发现，在正中触角脑束的神经元代码的潜伏期差异或特定的抑制相结合的兴奋相的气味，有一个更具体的活动配置文件为不同的气味和延迟传达的信息。触角脑外侧束神经元对气味的编码是通过发放频率的差异进行的，对不同的气味具有更广泛的活动特征，并且能够快速地传递信息。因此，相当初步的信息嗅觉刺激首先到达蘑菇体和侧角通过神经元的外侧antennocerebral束和随后的气味信息变得更加具体的活动的神经元的正中antennocerebral束。我们的结论是，这种神经解剖学特征是不相关的不同的气味之间的区别，而是反映了双重编码相同的气味刺激由两个不同的神经元的策略，专注于不同的属性相同的刺激。
Two distinct neuronal pathways connect the first olfactory neuropil, the antennal lobe, with higher integration areas, such as the mushroom bodies, via antennal lobe projection neurons. Intracellular recordings were used to address the question whether neuroanatomical features affect odor-coding properties. We found that neurons in the median antennocerebral tract code odors by latency differences or specific inhibitory phases in combination with excitatory phases, have a more specific activity profile for different odors and convey the information with a delay. The neurons of the lateral antennocerebral tract code odors by spike rate differences, have a broader activity profile for different odors, and convey the information quickly. Thus, rather preliminary information about the olfactory Stimulus first reaches the mushroom bodies and the lateral horn via neurons of the lateral antennocerebral tract and subsequently odor information becomes more specified by activities of neurons of the median antennocerebral tract. We conclude that this neuroanatomical feature is not related to the distinction between different odors, but rather reflects a dual coding of the same odor stimuli by two different neuronal strategies focusing different properties of the same stimulus.