title: Fronto-Parietal Anatomical Connections Influence the Modulation of Conscious Visual Perception by High-Beta Frontal Oscillatory Activity.
abstract: May white matter connectivity influence rhythmic brain activity underlying visual cognition? We here employed diffusion imaging to reconstruct the fronto-parietal white matter pathways in a group of healthy participants who displayed frequency-specific ameliorations of visual sensitivity during the entrainment of high-beta oscillatory activity by rhythmic transcranial magnetic stimulation over their right frontal eye field. Our analyses reveal a strong tract-specific association between the volume of the first branch of the superior longitudinal fasciculus and improvements of conscious visual detection driven by frontal beta oscillation patterns. These data indicate that the architecture of specific white matter pathways has the ability to influence the distributed effects of rhythmic spatio-temporal activity, and suggest a potentially relevant role for long-range connectivity in the synchronization of oscillatory patterns across fronto-parietal networks subtending the modulation of conscious visual perception.
authors.affiliation: Centre de NeuroImagerie de Recherche - CENIR, Institut du Cerveau et de la Moelle epiniére, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.
authors.forename: Romain
authors.initials: R
authors.lastname: Quentin
authors.affiliation: Institut du Cerveau et de la Moelle Epinière, ICM, CNRS UMR 7225, INSERM U 1127 and Université Pierre et Marie Curie, Paris, France.
authors.forename: Lorena
authors.initials: L
authors.lastname: Chanes
authors.affiliation: Institut du Cerveau et de la Moelle Epinière, ICM, CNRS UMR 7225, INSERM U 1127 and Université Pierre et Marie Curie, Paris, France.
authors.forename: Marine
authors.initials: M
authors.lastname: Vernet
authors.affiliation: Institut du Cerveau et de la Moelle Epinière, ICM, CNRS UMR 7225, INSERM U 1127 and Université Pierre et Marie Curie, Paris, France Laboratory for Cerebral Dynamics Plasticity and Rehabilitation, Boston University School of Medicine, Boston, MA, USA Cognitive Neuroscience and Information Technology Research Program, Open University of Catalonia (UOC), Barcelona, Spain.
authors.forename: Antoni
authors.initials: A
authors.lastname: Valero-Cabré
mesh_terms: D000328:Adult; D001611:Beta Rhythm / Q000502:physiology*; D001931:Brain Mapping; D066264:Datasets as Topic; D038524:Diffusion Magnetic Resonance Imaging; D005260:Female; D005625:Frontal Lobe / Q000033:anatomy & histology / Q000502:physiology*; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D010296:Parietal Lobe / Q000033:anatomy & histology / Q000502:physiology*; D010775:Photic Stimulation; D050781:Transcranial Magnetic Stimulation; D014795:Visual Pathways / Q000033:anatomy & histology / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*; D066127:White Matter / Q000033:anatomy & histology / Q000502:physiology*; D055815:Young Adult
keywords: brain, oscillations, synchronization; conscious visual perception; noninvasive neurostimulation; visuo-spatial attention; white matter anatomy