Distributed plasticity in ant visual pathways following colour learning
Distributed plasticity in ant visual pathways following colour learning
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颜色学习后蚂蚁视觉通路的分布式可塑性
DOI：
10.1098/rspb.2018.2813
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发表时间：
--
期刊：
影响因子：
--
通讯作者：
Rössler
中科院分区：
文献类型：
--
作者：
Yilmaz;Grübel;Spaethe;Rössler
在视觉通路的早期阶段的颜色处理是脊椎动物和无脊椎动物物种的深入研究的主题。然而，目前还不清楚颜色学习和记忆的形成如何影响昆虫大脑的外围处理阶段和高阶整合中心，以及相关的颜色经验是否反映在底层神经元回路的可塑性。为了解决这个问题，我们使用Camponotus blandusants，因为它们已被证明具有颜色学习和记忆能力，精确可控的年龄和经验，以及已知的中央视觉通路提供了独特的途径来分析微型大脑中颜色视觉神经元回路的可塑性。不同的neuropils-optic lobes（OL），蘑菇体（MB）输入（衣领）和输出（垂直叶），前视结节（AOTU）和中央复合体（CX）的潜在参与-在相关的颜色经验进行了评估量化的体积和突触的变化（MB衣领）后直接颜色条件化，3天后，建立长期记忆（LTM）。为了解释非关联光暴露的潜在影响，我们比较了颜色幼稚觅食者大脑中的神经元变化与以非关联方式暴露于光的觅食者的变化。结果清楚地表明，OLs，AOTU和CX响应颜色学习和LTM形成后的塑性变化。这表明一个复杂的神经网络的颜色学习和记忆的形成涉及多个大脑水平。这种颜色处理网络可能代表了一种高效的设计，可以在定向和导航过程中促进快速准确的行为决策。
Colour processing at early stages of visual pathways is a topic of intensive study both in vertebrate and invertebrate species. However, it is still unclear how colour learning and memory formation affects an insect brain in the peripheral processing stages and high-order integration centres, and whether associative colour experiences are reflected in plasticity of underlying neuronal circuits. To address this issue, we usedCamponotus blandusants as their proven colour learning and memory capabilities, precisely controllable age and experience, and already known central visual pathways offer unique access to analyse plasticity in neuronal circuits for colour vision in a miniature brain. The potential involvement of distinct neuropils—optic lobes (OLs), mushroom body (MB) input (collar) and output (vertical lobe), anterior optic tubercle (AOTU) and central complex (CX)—in associative colour experiences was assessed by quantification of volumetric and synaptic changes (MB collar) directly after colour conditioning and, 3 days later, after the establishment of long-term memory (LTM). To account for potential effects of non-associative light exposure, we compared neuronal changes in the brain of colour-naive foragers with those of foragers that had been exposed to light in a non-associative way. The results clearly show that the OLs, AOTU, and CX respond with plastic changes after colour learning and LTM formation. This suggests a complex neuronal network for colour learning and memory formation involving multiple brain levels. Such a colour-processing network probably represents an efficient design promoting fast and accurate behavioural decisions during orientation and navigation.
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影响因子：
2
作者：
Barth, M;Heisenberg, M
通讯作者：
Heisenberg, M
蜜蜂大脑蘑菇体的解剖：α-叶的神经连接
影响因子：
2.5
作者：
J. Rybak;R. Menzel
通讯作者：
R. Menzel
DOI：
10.1073/pnas.0914912107
发表时间：
2010-06-01
影响因子：
11.1
作者：
Hu, Aiqun;Zhang, Wei;Wang, Zuoren
通讯作者：
Wang, Zuoren
影响因子：
3
作者：
Grob R;Fleischmann PN;Grübel K;Wehner R;Rössler W
通讯作者：
Rössler W
影响因子：
3
作者：
Falibene A;Roces F;Rössler W
通讯作者：
Rössler W