title: Cartography of serotonergic circuits.
abstract: Serotonin is an essential neuromodulator, but the precise circuit connectivity that regulates serotonergic neurons has not been well defined. Using rabies virus tracing strategies Weissbourd et al. (2014) and Pollak Dorocic et al. (2014) in this issue of Neuron and Ogawa et al. (2014) in Cell Reports provide a comprehensive map of the inputs to serotonergic neurons, highlighting the complexity and diversity of potential upstream cellular regulators.
authors.affiliation: Departments of Psychiatry and Cell Biology and Physiology, Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599-7250, USA.
authors.forename: Dennis R
authors.initials: DR
authors.lastname: Sparta
authors.affiliation: Departments of Psychiatry and Cell Biology and Physiology, Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599-7250, USA. Electronic address: gstuber@med.unc.edu.
authors.forename: Garret D
authors.initials: GD
authors.lastname: Stuber
references.citation: Neuroscience. 2001;106(4):783-92
references.pmid: 11682163
references.citation: Front Behav Neurosci. 2014 Feb 17;8:43
references.pmid: 24596546
references.citation: Biol Psychiatry. 1998 Aug 1;44(3):151-62
references.pmid: 9693387
references.citation: Nature. 2012 Dec 20;492(7429):428-32
references.pmid: 23160494
references.citation: Brain Res. 1977 Feb 18;122(2):229-42
references.pmid: 837230
references.citation: Brain Res. 1983 Dec 19;289(1-2):109-19
references.pmid: 6140982
references.citation: J Comp Neurol. 2012 Dec 15;520(18):4157-67
references.pmid: 22605640
references.citation: Neuron. 2014 Aug 6;83(3):663-78
references.pmid: 25102561
references.citation: J Comp Neurol. 2010 Mar 1;518(5):668-86
references.pmid: 20034056
references.citation: Neuron. 2013 Jul 24;79(2):347-60
references.pmid: 23810541
references.citation: Neuron. 2007 Mar 1;53(5):639-47
references.pmid: 17329205
references.citation: Front Integr Neurosci. 2013 Aug 27;7:60
references.pmid: 23986662
references.citation: Cell Rep. 2014 Aug 21;8(4):1105-18
references.pmid: 25108805
references.citation: Neuron. 2014 Aug 6;83(3):645-62
references.pmid: 25102560
references.citation: Neuroscience. 2003;116(3):669-83
references.pmid: 12573710
references.citation: Nat Neurosci. 2005 Mar;8(3):365-71
references.pmid: 15696163