@article {48462,
	title = {Ring attractor dynamics in the Drosophila central brain.},
	journal = {Science (New York, N.Y.)},
	volume = {356},
	year = {2017},
	month = {2017 May 04},
	pages = {849-53},
	abstract = {<p>Ring attractors are a class of recurrent networks hypothesized to underlie the representation of heading direction. Such network structures, schematized as a ring of neurons whose connectivity depends on their heading preferences, can sustain a bump-like activity pattern whose location can be updated by continuous shifts along either turn direction. We recently reported that a population of fly neurons represents the animal{\textquoteright}s heading via bump-like activity dynamics. We combined two-photon calcium imaging in head-fixed flying flies with optogenetics to overwrite the existing population representation with an artificial one, which was then maintained by the circuit with naturalistic dynamics. A network with local excitation and global inhibition enforces this unique and persistent heading representation. Ring attractor networks have long been invoked in theoretical work; our study provides physiological evidence of their existence and functional architecture.</p>
},
	issn = {1095-9203},
	doi = {10.1126/science.aal4835},
	author = {Kim, Sung S and Rouault, Herv{\'e} and Druckmann, Shaul and Jayaraman, Vivek}
}
