title: There and back again: the corticobulbar loop.
abstract: Feedback is a ubiquitous anatomical feature of sensory processing in vertebrates. In this issue of Neuron, two papers (Boyd et al., 2012, and Markopoulos et al., 2012) analyze the features of feedback from olfactory cortex to olfactory bulb.
authors.affiliation: Department of Neuroscience and Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA 15260, USA. amoswald@pitt.edu
authors.forename: Anne-Marie
authors.initials: AM
authors.lastname: Oswald
authors.forename: Nathaniel N
authors.initials: NN
authors.lastname: Urban