title: The birth of the barrels.
abstract: Refinement of sensory maps follows a highly reproducible tempo dictated largely by peripheral sensory receptors and neural activity. In this issue of Developmental Cell, Toda et al. (2013) add a new twist by showing that the timing of birth plays a decisive role in setting the clock for pattern emergence.
authors.affiliation: INSERM UMR-S 839, Université Pierre et Marie Curie, 75005 Paris, France; Institut du Fer à Moulin, 17 rue du Fer à Moulin, 75005 Paris, France. Electronic address: patricia.gaspar@inserm.fr.
authors.forename: Patricia
authors.initials: P
authors.lastname: Gaspar
authors.forename: Reha
authors.initials: R
authors.lastname: Erzurumlu
mesh_terms: D000818:Animals; D005260:Female; D009475:Neurons, Afferent / Q000378:metabolism*; D036801:Parturition / Q000378:metabolism*; D011247:Pregnancy; D012701:Serotonin / Q000378:metabolism*; D013003:Somatosensory Cortex / Q000502:physiology*
chemical_list: D012701:Serotonin