A visual pathway links brain structures active during magnetic compass orientation in migratory birds.
A visual pathway links brain structures active during magnetic compass orientation in migratory birds.
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DOI：
10.1371/journal.pone.0000937
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发表时间：
2007-09-26
期刊：
影响因子：
3.7
通讯作者：
Mouritsen H
中科院分区：
文献类型：
--
作者：
Heyers D;Manns M;Luksch H;Güntürkün O;Mouritsen H
候鸟的磁罗盘被认为是依赖于光的。当夜间迁徙的鸣禽进行磁罗盘定向时，视网膜隐色素表达的神经元和前脑区域“簇N”显示出高神经元活动。通过将神经追踪与行为实验相结合，在磁罗盘定向过程中导致神经活动标记Zenk的感觉驱动基因表达，我们证明了视网膜神经元与N簇之间通过视觉丘脑的功能性神经元联系。因此，在磁罗盘定位期间，中枢神经系统中最活跃的两个区域是上升的视觉处理流--丘脑分离通路的一部分。此外，N簇似乎是视觉wulst的特殊部分。这些发现有力地支持了候鸟使用视觉系统感知地磁场的参考指南针方向，以及候鸟“看到”地磁场提供的参考指南针方向的假说。
The magnetic compass of migratory birds has been suggested to be light-dependent. Retinal cryptochrome-expressing neurons and a forebrain region, “Cluster N”, show high neuronal activity when night-migratory songbirds perform magnetic compass orientation. By combining neuronal tracing with behavioral experiments leading to sensory-driven gene expression of the neuronal activity marker ZENK during magnetic compass orientation, we demonstrate a functional neuronal connection between the retinal neurons and Cluster N via the visual thalamus. Thus, the two areas of the central nervous system being most active during magnetic compass orientation are part of an ascending visual processing stream, the thalamofugal pathway. Furthermore, Cluster N seems to be a specialized part of the visual wulst. These findings strongly support the hypothesis that migratory birds use their visual system to perceive the reference compass direction of the geomagnetic field and that migratory birds “see” the reference compass direction provided by the geomagnetic field.
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影响因子：
--
作者：
Möller, A;Sagasser, S;Schierwater, B
通讯作者：
Schierwater, B
影响因子：
2.5
作者：
SHU, SY;JU, G;FAN, LZ
通讯作者：
FAN, LZ
DOI：
10.1073/pnas.0409575102
发表时间：
2005-06-07
影响因子：
11.1
作者：
Mouritsen, H;Feenders, G;Jarvis, ED
通讯作者：
Jarvis, ED
影响因子：
3.4
作者：
Ritz, T;Adem, S;Schulten, K
通讯作者：
Schulten, K
影响因子：
2.5
作者：
GUNTURKUN, O;KARTEN, HJ
通讯作者：
KARTEN, HJ