干旱区生态环境知识资源中心(Arid): Two Compasses in the Central Complex of the Locust Brain

Arid

DOI	10.1523/JNEUROSCI.0940-18.2019
	Two Compasses in the Central Complex of the Locust Brain
	Pegel, Uta 1,2; Pfeiffer, Keram 3; Zittrell, Frederick 1,2; Scholtyssek, Christine 4; Homberg, Uwe 1,2
通讯作者	Homberg, Uwe
来源期刊	JOURNAL OF NEUROSCIENCE
ISSN	0270-6474
EISSN	1529-2401
出版年	2019
卷号	39 期号:16 页码:3070-3080
英文摘要	Many migratory insects rely on a celestial compass for spatial orientation. Several features ofthe daytime sky, all generated by the sun, can be exploited for navigation. Two of these are the position of the sun and the pattern of polarized skylight. Neurons of the central complex (CX), a group of neuropils in the central brain of insects, have been shown to encode sky compass cues. In desert locusts, the CX holds a topographic, compass-like representation of the plane of polarized light (E-vector) presented from dorsal direction. In addition, these neurons also encode the azimuth of an unpolarized light spot, likely representing the sun. Here, we investigate whether, in addition to E-vector orientation, the solar azimuth is represented topographically in the CX. We recorded intracellularly from eight types of CX neuron while stimulating animals of either sex with polarized blue light from zenithal direction and an unpolarized green light spot rotating around the animal's head at different elevations. CX neurons did not code for elevation of the unpolarized light spot. However, two types of colum nar neuron showed a linear correlation between innervated slice in the CX and azimuth tuning to the unpolarized green light spot, consistent with an internal compass representation of solar azimuth. Columnar outputs of the CX also showed a topographic representation of zenithal E-vector orientation, but the two compasses were not linked to each other. Combined stimulation with unpolarized green and polarized blue light suggested that the two compasses interact in a nonlinear way.
英文关键词	central complex head direction insect brain navigation polarization vision sky compass
类型	Article
语种	英语
国家	Germany ; England
开放获取类型	Bronze, Green Published
收录类别	SCI-E
WOS记录号	WOS:000465040000008
WOS关键词	DORSAL RIM AREA ; POLARIZATION VISION ; DESERT LOCUST ; ORIENTATION ; SKY ; BEES ; INTEGRATION ; NAVIGATION ; SKYLIGHT ; NEURONS
WOS类目	Neurosciences
WOS研究方向	Neurosciences & Neurology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217255
作者单位	1.Philipps Univ Marburg, Anim Physiol, Dept Biol, D-35032 Marburg, Germany; 2.Philipps Univ Marburg, Ctr Mind Brain & Behav, D-35032 Marburg, Germany; 3.Univ Wurzburg, Behav & Physiol & Sociobiol Zool 2, Biozentrum, D-97074 Wurzburg, Germany; 4.Univ Bristol, Sch Expt Psychol, Bristol BS8 1TU, Avon, England
推荐引用方式 GB/T 7714	Pegel, Uta,Pfeiffer, Keram,Zittrell, Frederick,et al. Two Compasses in the Central Complex of the Locust Brain[J],2019,39(16):3070-3080.
APA	Pegel, Uta,Pfeiffer, Keram,Zittrell, Frederick,Scholtyssek, Christine,&Homberg, Uwe.(2019).Two Compasses in the Central Complex of the Locust Brain.JOURNAL OF NEUROSCIENCE,39(16),3070-3080.
MLA	Pegel, Uta,et al."Two Compasses in the Central Complex of the Locust Brain".JOURNAL OF NEUROSCIENCE 39.16(2019):3070-3080.