title: Imagining the possibilities: ripples, routes, and reactivation.
abstract: Hippocampal place cells fire selectively when a rat occupies a particular location. Under certain conditions, the cells briefly represent trajectories along locations away from the rat's current location. New results lend important insight into this phenomenon and demonstrate spatiotemporally coherent, cognitive representations that are independent of current sensory input.
authors.affiliation: Zanvyl Krieger Mind/Brain Institute and Department of Neuroscience, Johns Hopkins University, Baltimore, MD 21218, USA. jknierim@jhu.edu
authors.forename: James J
authors.initials: JJ
authors.lastname: Knierim
mesh_terms: D000818:Animals; D003071:Cognition / Q000502:physiology*; D006624:Hippocampus / Q000166:cytology / Q000502:physiology*; D006801:Humans; D009434:Neural Pathways / Q000166:cytology / Q000502:physiology; D009474:Neurons / Q000502:physiology*; D051381:Rats; D013037:Spatial Behavior / Q000502:physiology*