Dynamic sensory representations in the olfactory bulb: modulation by wakefulness and experience.

Dynamic sensory representations in the olfactory bulb: modulation by wakefulness and experience.
复制标题

DOI:
10.1016/j.neuron.2012.09.037
复制
发表时间:
2012-12-06
期刊:
影响因子:
16.2
通讯作者:
Komiyama T
Komiyama T
中科院分区:
医学1区
文献类型:
--
作者:
Kato HK;Chu MW;Isaacson JS;Komiyama T

文献摘要

参考文献

被引文献

相似文献

大脑中的感觉表征如何受到动物状态的影响?在这里,我们使用慢性双光子钙成像来探索清醒和体验如何塑造小鼠嗅球的气味表征。比较清醒和麻醉状态,我们发现清醒极大地增强了抑制性颗粒细胞的活性,并使主要二尖瓣细胞的气味反应更加稀疏和时间动态。在清醒的小鼠中,短暂的重复气味体验会导致二尖瓣细胞气味表征逐渐且持久(数月)的减弱。这种二尖瓣细胞的可塑性是气味特异性的,在几个月内逐渐恢复,并且可以用不同的气味重复。此外,麻醉可阻止这种依赖于经验的可塑性的表达。总之,我们的结果证明了清醒动物二尖瓣细胞气味表征的动态性质,它不断受到最近的气味体验的影响。
How are sensory representations in the brain influenced by the state of an animal? Here we use chronic two-photon calcium imaging to explore how wakefulness and experience shape odor representations in the mouse olfactory bulb. Comparing the awake and anesthetized state, we show that wakefulness greatly enhances the activity of inhibitory granule cells and makes principal mitral cell odor responses more sparse and temporally dynamic. In awake mice, brief repeated odor experience leads to a gradual and long-lasting (months) weakening of mitral cell odor representations. This mitral cell plasticity is odor-specific, recovers gradually over months and can be repeated with different odors. Furthermore, the expression of this experience-dependent plasticity is prevented by anesthesia. Together, our results demonstrate the dynamic nature of mitral cell odor representations in awake animals, which is constantly shaped by recent odor experience.
DOI: 10.1038/nprot.2009.89
发表时间: 2009
期刊: NATURE PROTOCOLS
影响因子: 14.8
作者:
Holtmaat, Anthony;Bonhoeffer, Tobias;Chow, David K.;Chuckowree, Jyoti;De Paola, Vincenzo;Hofer, Sonja B.;Huebener, Mark;Keck, Tara;Knott, Graham;Lee, Wei-Chung A.;Mostany, Ricardo;Mrsic-Flogel, Tom D.;Nedivi, Elly;Portera-Cailliau, Carlos;Svoboda, Karel;Trachtenberg, Joshua T.;Wilbrecht, Linda
通讯作者: Wilbrecht, Linda
DOI: 10.1038/nature08897
发表时间: 2010-04-22
期刊: NATURE
影响因子: 64.8
作者:
Komiyama, Takaki;Sato, Takashi R.;Svoboda, Karel
通讯作者: Svoboda, Karel
DOI: 10.1016/0013-4694(50)90075-7
发表时间: 1950-01-01
期刊: ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY
影响因子: --
作者:
ADRIAN, ED
通讯作者: ADRIAN, ED
DOI: 10.1523/jneurosci.2490-08.2008
发表时间: 2008-08-13
期刊: The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子: --
作者:
Eyre MD;Antal M;Nusser Z
通讯作者: Nusser Z
DOI: 10.1037/a0020293
发表时间: 2010-08
影响因子: 1.9
作者:
Chaudhury, Dipesh;Manella, Laura;Arellanos, Adolfo;Escanilla, Olga;Cleland, Thomas A.;Linster, Christiane
通讯作者: Linster, Christiane