title: An independent, landmark-dominated head-direction signal in dysgranular retrosplenial cortex.
abstract: We investigated how landmarks influence the brain's computation of head direction and found that in a bidirectionally symmetrical environment, some neurons in dysgranular retrosplenial cortex showed bidirectional firing patterns. This indicates dominance of neural activity by local environmental cues even when these conflicted with the global head direction signal. It suggests a mechanism for associating landmarks to or dissociating them from the head direction signal, according to their directional stability and/or utility.
authors.affiliation: Institute of Behavioural Neuroscience, Research Department of Experimental Psychology, Division of Psychology and Language Sciences, University College London, London, UK.
authors.forename: Pierre-Yves
authors.initials: PY
authors.lastname: Jacob
authors.affiliation: Institute of Behavioural Neuroscience, Research Department of Experimental Psychology, Division of Psychology and Language Sciences, University College London, London, UK.
authors.forename: Giulio
authors.initials: G
authors.lastname: Casali
authors.affiliation: Department of Psychology, City University of London, London, UK.
authors.forename: Laure
authors.initials: L
authors.lastname: Spieser
authors.affiliation: Institute of Behavioural Neuroscience, Research Department of Experimental Psychology, Division of Psychology and Language Sciences, University College London, London, UK.
authors.forename: Hector
authors.initials: H
authors.lastname: Page
authors.affiliation: Institute of Behavioural Neuroscience, Research Department of Experimental Psychology, Division of Psychology and Language Sciences, University College London, London, UK.
authors.forename: Dorothy
authors.initials: D
authors.lastname: Overington
authors.affiliation: Institute of Behavioural Neuroscience, Research Department of Experimental Psychology, Division of Psychology and Language Sciences, University College London, London, UK.
authors.forename: Kate
authors.initials: K
authors.lastname: Jeffery
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology*; D003463:Cues; D006257:Head / Q000502:physiology*; D019416:Head Movements / Q000502:physiology*; D008297:Male; D009474:Neurons / Q000502:physiology*; D009949:Orientation / Q000502:physiology*; D051381:Rats; D012399:Rotation